E Mountain Bike Batteries Explained | EMBN's E-Bike Fundamentals Part 2

[@embn]

Leave any further questions about batteries or battery management in the comments below and we'll get back to you ⚡️💪

[@mortonfrankfire5400]

Electric Mountain Bike Network is there a way to charge your ebike battery from a 12volt sort of supply? I’m thinking about whilst I’m away in my van and off grid. Potentially is there a battery to battery sort of transfer as an alternative?

[@pesttay]

Can a ebike be charged from a car 12v inverter? Can a ebike be lifted on a roof carrier? And last question can you fly with a ebike?

[@mortonfrankfire5400]

Craig Wilson I’ve wondered that too. More the inverter bit though.

[@markotrieste]

Regarding roof carrier, I did it several times: open the latches on the rail. Lift the holding clamps to a proper height. Take the battery and everything off the bike. The remaining 18-20kg are manageable to lift. There is a trick however: you must use a strap or a string and bond the front wheel to the frame, so that when you lift it, the wheel remains straight. Once you have the front wheel locked, hold the bike on the frame near the center of gravity (one hand near the battery support/bottle cage, the other at the same height on the saddle tube). Lift it above your head, horizontally. Move forward and put the wheels on the rail. Carefully rise the bike, pivoting the wheels in the rail. You may step on the curb or a small step if you are smallish or working on a high vehicle. Once you have the clamp holding the frame, the rest is easily done. To take it down, same procedure reversed: let the bike fall on you, hold it on the frame near the COG and let it fall down. For the total carrying capacity, check car and carrier manuals.

[@petertmac]

I have a 12v-240v invertor that I plug into cigarette lighter and then plug my Shimano charger in to charge my bike battery. Works just fine.

[@MHH3180]

It never ceases to amaze me that the type of riding we do, the bikes I sell and our target markets are a million miles apart, yet your videos are the most useful to share with my customers.

[@bobfredericks6545]

Another great video. Every time I watch your videos I get closer to purchasing an e bike. I just need to find a good shop here where I live in the USA.

[@critter3745]

Go for it Bob. I love my Haibike.

[@alrado4167]

anyway, get a back-up battery , will be nice

[@8959reddog]

Bob, I have just purchased a Cube Reaction hardtail with Bosch CX motor and 500 battery my first eMTB. Absolutely loving crushing those uphill climbs

[@markotrieste]

If I know that I am going to scrap the bottom of my battery capacity, then I apply a simple rule: FIRST downshift to first gear, THEN if needed increase assistance level. However I also learned to evaluate the "electron consumption": about 10Wh/km (horizontal) and 500Wh/km (vertical) is a conservative estimate.

[@hamishford5486]

Many thanks Steve for taking the time to make this video. I am however confused as I was told by my battery supplier Cap-Rouge Batteries that its amp-hour size that determines the range. You say its Watt-hours, please clarify the difference. Many thanks.

[@oiuslags]

Hamish Ford amp hour is the correct term for battery capacity in the electrical industry amps x volts = Watts x time = watt hours

[@JohnRushworth]

Well done Steve. Tricky subject eh. Now for the fussy bits. Capacity is Ah and stored Energy is Wh, so as my Bosch is 36V nominal and 13.4Ah capacity then 36 x 13.4= 482Wh of stored energy. Discharge is measured as C rate as is charge so if I discharged at 482W of power that is 1C. Depending on the type of Lithium and as most eBikes uses LiPo as opposed to say LiFePO4 then we may find LiPo recommended C rate on discharge for cycle life is max say 1.5C so we can safely pull 482 x 1.5 = 723 Watts of power from the battery which after efficiency losses in controller and motor and wiring might leave us with 500 Watts of peak power at the back wheel subject to motor rpm and other variables. I told you it was tricky 😏 Top job you did there though and gets us all on the learning curve, which I’m having as much fun with since I learned suck, squeeze, bang, blow. I think that was those old dinosaur fuelled machines of yesteryear 😏👍

[@alrado4167]

Yes, correct. but some battery can be more larger capacity, AS 36V, 17.5AH, samsung cells

[@2FeetForward]

You lost me at ‘Steve’ 🤪🤔

[@johnkorrison4812]

The 500w Bosch battery on my Moustache Race9 carbon is guaranteed for 2 years or 500 charging cycles. It is not clear from this video if a charge from say 40% remaining qualifies as a full charging cycle or approx a 50% charging cycle? Can Bosch or other manufacturers calculate from the battery diagnostics how many cycles the battery has been through and differentiate between part and full charging cycles?

[@johnbeedham3010]

I have just today charged my Bosch 400wh battery from a AGM deep cycle 12v battery and a 600w modified sine wave inverter! Living remotely I can take the bike out into the forests and charge from a battery (that can be charged by my solar panel.) I love electronics!!

[@stevejones7956]

Like it!

[@laurielyon7740]

Once again........VERY informative.

[@critter3745]

Thanks for the excellent topic. Very informative. One thing you didn't cover is an issue that I have had:. The charger to battery interface plug. My Yamaha charger plug takes a bit of finesse to couple with the battery. I wish it were easier.

[@kymwenham2664]

Great video. As with all of your videos very informative. Keep them coming

[@embn]

Thanks Kym

[@budman1870]

Good comments on the IP rating.

[@prgrier1]

I rode an ebike last summer, my progression was interesting, retiring my Enduro bike (Nomad v2) and getting help to keep up with my riding group, as I am much older than most of them, it is an amazing experience to keep up again. At first I used Eco mode as much as possible, battery use went well, my average riding time only used a fifth or at most a quarter or the battery capacity. Perhaps because I had been riding very slowly in the past, always at the back of the group. As the season moved on and I grew more confident I found my self using higher levels of assist, going faster the battery did not last as many rides. Ride with manners - you likely know that being at the back is hard on the pride. The group seemed OK with the rests they got while I caught up. They enjoy the vampire like mosquitos they had to endure. (so, no rest for you!) I also firmly believe that staying at he rear of the group has not put the others in the group in a position to resent the help I get from the motor, though they no longer have to wait for me. When delayed at the back helping others with trail problems, I seldomly get dropped and amplify fatigue catching up. I really dislike the non-linear fuel gauge (Giant Fulle) on my bike, when the battery says 15% left it really means one more small climb and I'm on my own, no matter how conservatively I pedal. I mean to not go on a ride without half a battery charge. Finessing balance on slow sections like boardwalks and scary steep traverses has cost me several crashes, the bike mass and geometry makes a massive difference. If you wish do a comparison of battery usage on the same ebike, or maybe just load up a heavy backpack.

[@WasabiWei]

Thanks for sharing your experience. Good to know!

[@ericbourne3116]

im sold. im really looking to get a trail bike and this seems like a no brainer. i was thinking about getting a chromag primer 29er ht, but i think that can wait because being able to lap the mountain without a chairlift is a dream come true.

[@Extremegaz25]

Just waiting for my new yt to be delivered and still not assisted at 55 but seriously thinking about E-Bike for next one, the way there progressing they can only get better I-e battery weight/ life and quality and more stuff for your dollar! Great programme by the way well enjoying it.

[@digzyjones]

Great information and advice on the battery Steve. But had two glasses of water afterwards 👍🏻😜

[@nickwatkins5227]

Great 👍🏼 video very informative good job 👏 Steve.👀

[@jaysmith5031]

Hello, thank you for taking the time to provide brilliant videos. Is there a way you can lock 🔐 up your battery from a security point. 👍🏼🚲

[@philiprandall1399]

Thanks for the brilliant videos. One question that I don't think I have seen answered is security: what is to stop a thief just unclipping the battery and walking off with it while the bike is parked up? Internal batteries seem to be more resistant to theft but even those look relatively easy to remove.

[@embn]

Good point! Some bikes come with keys that lock the batteries in place, though others don't. Maybe taking the battery with you is an option?

[@edgarbeat275]

The cheep Lo26 samebike I have is within the frame the key has three positions full on, remove key and pin lock unlock remove key. 2nd position the key can be removed but the battery pin is engaged The second position

[@samuelmoffatt4889]

Hi! My Friend- sorry about that, I shouldn't assume? We might get into a debate and might not end up Friends? What I truly wanted to say I appreciate all your coverages of considering what one really needs to take into account when considering purchasing your next E-Bike! Thanks so very much for making sense out of an overwhelming novis considering riding an E-Bike at seventy years young!!! See at the top of Mtn, Hood, Ore. Big Sam

[@njbaquatics4827]

You suggest 30 to 60 For storage Does that mean 100% would be bad? Or is the middleground a good place to stay for battery Maintenance ? Sorry to be so particular but this is a very grey area Any feedback would be very much appreciated thank you in advance 👍👍

[@smarttask1]

I have a Hiabike Exduro AllMtn with Bosch System Active & Performance CX +500 Wh. Battery .. My question is after a 15km ride and 4 leds still showing on my battery should I recharge the battery or wait untill I have consumed more...??

[@critter3745]

I tend to take shorter rides and ride daily during the warmer weather months. I personally wait until I am at around 20 percent before charging. The only exception is if I am planning a long ride.

[@tichmitchell1618]

Great show again, Steve, keep up the great work. I think they got a point about Giant 😟

[@timlockwood7228]

Great film, very informative.

[@brandywell44]

How about misuse of a battery eg lack of use, leaving it stored in a drained condition etc.

[@kevinargust3694]

I find the best way is use normal mode , the syncdrive system has a torque sensor which applies a percentage of the power I input. If I have a cadence of about 75 RPM, and an appropriate gear to spin without having to stamp on the pedals, I am only applying medium pressure to the pedals, which means the percentage the motor puts in is less than stamping. In theory using less battery power. Seems to work as after a morning ride my Brother has about 20% left in his battery against my 50%, He tends to be a gear or two higher than me and grinds rather than spin.

[@Bergwacht]

Is there a way to charge the Yamaha PW_X batteries with a step-up converter?

[@mazivco]

do you know if its better to drain it below 20% before charging ? and if half a charge to 50-70% is good or bad for this kind of batteries?

[@alrado4167]

it depends on the cells used. some maybe 20% lower

[@gingermattb]

I am intrigued how the cell balancing is done in these packs. Clearly there are no balance leads going to the pack from the PSU, so the charge circuitry must all be on board. Balancing is critical to maintaining cycle life in lithium packs so I would love to hear more about this please.

[@MrSkyhawk04]

The BMS or battery management system is in the battery pack not the motor or the charger. Mostly they do a good job but have heard that Spesh and others don't have good BMS's. Don't think it's a big deal and it wouldn't sway me from one brand to another.

[@kevinargust3694]

Best vid yet 👍

[@embn]

Thanks Kevin!

[@AzogDefilerFromMordor]

Question about charging..if you do short rides daily and you drain lets say just 10% on each, should you recharge daily or after lets say 7 days when battery reach 30% and then recharge it to full? The difference is 7 charges vs 1 charge a week. What is best for battery life?

[@longrider42]

This is all well and good, but not all E-Bikes are of the mountain bike type. I recently installed a front wheel drive Direct Drive hub motor on my recumbent. I just topped 300 miles today. So far my best distance is 30 miles and I still have 40% battery. Oh, the motor is a 48 Volt 500 watt hub motor, Direct Drive. The battery is LithIon 48 volts 10 amps. And I use only what I need assist wise. I have five settings and I normally cruise in assist level 3. But, there are some big hills in the town I live in, so I bump it up to 5, just to get up the hill faster. You also forgot to talk about voltage spikes. I've noticed my battery level indicator goes down when I'm climbing a hill in assist five, but then when I go back to three, the battery level indicator goes back up. Yeah, lots of things to consider.

[@salkdjfasldkfjsdlk]

Great tips. I agree that finding the sweet spots between effort, speed and battery life is an art.

[@yofoo138]

How about contact points where the battery goes, can I use RC car cleaner or isopropyl alcohol? Just want to help fight corrosion.

[@RobS32]

Cheers pal straight forward vid 👍

[@embn]

No worries Rob! Thanks for tuning in ⚡️

[@RoissyAngel]

You said to turn the motor off when going downhill to preserve battery - is that an easy thing to do when on the go? I mean, is there a simple on/off switch on the handlebars to turn the motor off when you are actually about to come to a downhill bit... then turn it back on when you reach the bottom?

[@helenHTID]

I presumed when you stop pedalling you stop assistance so you stop battery power being used? What would be the point of turning it off down a hill? But yes on control pad you can chose No assistance like you can choose assistance level (Some cheaper bikes don't give you the no assistance option and you have to just switch the power off on the pad)

[@RoissyAngel]

No idea whether the battery is not being used if you stop pedalling - am new to all of this so just watching these videos to learn.

[@helenHTID]

I'm not new. I have my second E-bike. When you pedal my display shows the power being drawn, When I don't pedal there's no indication of power being drawn. So this is why I presume this? So I don't get what he means by turning off assistance saves battery when going down hill? Anyway, As I said yeah you can turn off assistance from the control pad/stick/display.

[@helenHTID]

Sorry my pee brain has just clicked lol I think he means when your terrain is down slope and easy to pedal anyway, Then no point in using assistance. Basically it's making the most out of a single charge, Use the mixture of assistance levels when really needed and don't use any when it's really not necessary.

[@nevilletommy7857]

Actually don’t all batteries turn off she 25kms is exceeded?

[@agassi071]

Two points which eBike manufacturers won't tell you about batteries: 1. You should avoid discharging battery completely. Is much "healthier" for the battery to do as many "half cycles" as possible. This should give you even up to 2000 half cycles! 2. Allow at least 30min after the ride before putting battery on charge. This settles battery chemistry to the optimal charging level. Bosch, Yamaha, Shimano etc they don't make the battery cells which the batteries are build from. Those are Panasonic/Sanyo, Samsung, Lg etc. Read what they recommend for the long battery life ❣️❣️❣️

[@RubeneMaister]

Great video! But you talk about grease for contacts. Can WD40 be used to protect this contacts? You can make another videos about this 😁

[@MrWolfheart111]

What about shorting the battery out during a ride? What should one avoid? Metal Rings, necklaces ect... do a vid on that. The battery... does the current run through the handle bars? Do you feel a small amount of voltage while riding?... You can deeper into this topic... kinda important.

[@MrSkyhawk04]

LOL very low voltage and amperage at the display end of the system. Very unlikely you'd short a battery out and even if you did the BMS would trip.

[@daneilook]

Time for an update on all of the fundamentals! 2023 needs an update!

[@amjadislam1579]

I’m confused in buying an external battery what’s 48v 1300ah ??? I bought a kit that’s 1000 w.... front hub ... What’s recommendations???? Plz help

[@Crashed131963]

I have a PO4-20AH lithium battery in my E-Moped . I will not ride it in the winter . Can I just charge it and live it in a shed for 3 month. Cand the battery store in -20c weeks ? Or do I have to bring the battery inside for the winter?

[@jonneilsmyth9107]

is a 13s 3 p ok for a 250w hub ??? or is it overkill

[@finroddd]

In fact, bolt on systems have very practical batteries mounted on top of down tube. No need to carry battery in backpack.

[@gcn]

How many Froome's to a Greipel 🤔

[@deanschlechter]

Global Cycling Network oke

[@SenorSiesta]

Wrong way around.😉

[@pcloadletter2147]

What's the ideal cadence range? Specifically on a Shimano e8000?

[@biiiiiiiiiix]

Ok, should i put my battery in the fridge every time i don't use it ? Thanks.

[@freeflightfilms1]

what about a full discharge every 15 charges, Ive read that in the handbook

[@lostgolflball]

Hi everyone. Please advise the best ebike for a big guy weight including bike plus personal effects 140kg. At an affordable price for a mere mortal. Thanks

[@whynot64928]

I have a question that I have not been able to get answered... it's a bit left field but .. how many ebike batteries would you need to adequately power a electric car ?

[@briantrend1812]

ive cyced all over Europe on cyclo-cross bikes., and ride a TREKfuel MTB. I've never had an ebike.and a little scared of making the transision? Can someone explain to me without staying in a motel or B&B every night to charge up your used battery on a tour (which can be extremely expensive) across the country, which means charging you cant camp in the wild? So is ebike touring a problem how would you overcome the constant daily charging. carrying a spare battery would weigh a ton. 2ndly Ive got a medium size dog who wants to see the world in his trailer I guess pulling a doggie triailer is going to really half your distance per charging. I thought of paying bike shops and places I visit to charge my battery for a few hours but contemplating all this stuff makes me think may as well go dual sport Honda 250 and just pay for gas? Any tips anyone thanks????. this video is really good thankyou

[@dazid1]

I get conflicting messages re charging, you say get into the habit of charging after each ride however I have been told not to store battery charged so I have been leaving it flat until the day before a ride, whats the correct way

[@dwlee67]

Did you get an answer to this. I was told the same as you.

[@qibble455]

How much affect does wind have on range?

[@ToddBryantsr]

Does it matter if I leave the bike outdoors but bring the battery indoors?

[@petertmac]

As you are discussing batteries, anyone had any experience travelling by commercial airline with their ebike? Doesn't appear to be possible unless you can find another way to get the battery to your destination.

[@koko-lores]

Keep it in your hand luggage?

[@ebike5548]

Hi I’m new to ebikes and my battery keeps cutting out it has 4 leds and when he goes down to tree is when it cuts out I found when you turn it back on and go slower it keeps going but so annoying anyway idea would be appreciated thanks.

[@embn]

That doesn't sound right! Might be worth a check-up with your local bike shop or consulting with the brand which manufacture the bike :)

[@mondotv4216]

You can use a silicone based dielectric grease to protect your battery connections but I would advise against any petroleum based products - generally their melting point is too low and will cause them to dry out at which point they will actually hinder conductivity and be difficult to remove and clean. The dielectric grease does not conduct electricity itself but the theory is the grease get's pushed out of the way when the metal to metal connection is made and therefore should not affect conductivity. if you had a sloppy fitting connector then using any grease at all would be inadvisable.

[@rodhaigh5768]

Hi-can I use a 36v battery with a 48v motor?

[@firminofire9895]

A bit like listening to Boris talking about the lock down 🤯

[@synthplayer]

You discussed watt-hours, but the specs listed regarding my e-bike's battery only reference amp-hours. (52 Volt/19.2 A/hr) Please help me understand a bit better. Thanks!

[@MrSkyhawk04]

Really simple. Volts x amps = Watts 998.4 Watt hours

[@Carecovzki]

Steve can we jetwash an ebike if we keep the water jet out of the battery and motor? (Like washing a normal bike and be aware not to put the jet directly on the bearings. ) And regarding the life span of the batteries, the number of charges that the manufacturer announces are full charges and discharges? For example if I use 50% of battery life and plug it in does it only count as "half charge"?

[@ol-np8sy]

The BMS ( Battery Management System) counts full cycles .... modern chargers / monitored battery arrays handle this. The BMS also does not allow you to fully flatten the battery. The setting for full charge is a bit of a lottery as to what the engineering people decide .

[@billosbilly7908]

Is it okay to have my battery on 100% for 3 days before using it.

[@Gigafreak94]

oh no, you forgot the giant system! :O I know the motor is the yamaha pw/ pw-x but the software and battery (!!) are made by giant and are far superior then the "original" yamaha gear. Just saying ;) Keep up the good work and please do not forget giant ebikes in future videos, the quality of those is good enough to be mentioned :)

[@tichmitchell1618]

Yes, Giant needs mention Steve.

[@stevejones7956]

Ok, no worries, i'll get on it

[@midlifebiker7424]

Would you get more energy from a glass of red bull than water or isnt it quite as simple as that ;) Good work Steve

[@alrado4167]

red bull drink, no no.

[@jamesderr1344]

Anyone hear of any warnings about charging the batteries with a generator?

[@michaeltowler2632]

Did you say 1800 pounds for the Rocky Moutain Battery, Ive replayed the Video a few times to hear it again . The reason I ask is I am picking up my Powerplay in late march.

[@stevejones7956]

Haha, no £850 for a 632 w

[@michaeltowler2632]

Sorry it was a mixture of your accent and my Speakers coupled with aged hearing. Thanks.

[@critter3745]

@@michaeltowler2632 I heard the same thing as you.

[@5492sparky]

Great stuff Steve. Interesting vid.

[@johnbeedham3010]

Are the batteries rebuildable?

[@slinkytreekreeper]

But realistically, no. Many are blocked so just opening them will brick it. Bosch certainly do this on batteries newer than 3 years ago.

[@alrado4167]

some not, some possible

[@TheAegisClaw]

It's not as simple as dividing watt-hours by Watts of the motor. That's mainly because the motor watt rating is nominal, or average. Under acceleration these 250w batteries can provide up to 900w. If you're working the 500wh battery hard you can empty it in 90 minutes or less.

[@JohnRushworth]

TheAegisClaw Better to talk about capacity in Ah and C rate as well rather than stored energy in Wh which of course is important in terms of range and average Wh/m but tells us nothing of the safe discharge rate in Amps of a battery with a certain Ah at a certain voltage and all prior to system efficiency losses. Still I admire the team’s efforts in learning, helping and bringing these videos to us all. Thanks to them all for that.

[@stevejones7956]

Hi TheAegisClaw...your right of course, just wanted to cover basics, will get onto more detail in future

[@JohnRushworth]

TheAegisClaw The Bosch motor peaks at about 600W so indeed that might be 900W out of the battery. The discharge rate of the battery is governed by the constant and peak C rating (discharge rate as a multiplier) based on the battery Ah. As a 500Wh Bosch battery is 36V nominal and 13.4Ah = 482.4Wh then if a discharge of 1C then that would be 482.4 Watts of power entering the controller before losses. The cells are 18650s I understand but not sure whose or the spec, suffice to say they can exceed 1C discharge rate for short durations.

[@Rednasnamsob]

Mine will be the Bosch powertube 500 battery (on my Cube Stereo Hybrid 140 TM). What I'm interested in is how the battery capacity is developing. Will we see batteries with 1000 Wh or more in the near future??? I'd be happy to put down some money on more range 😊

[@ArthurDentZaphodBeeb]

Sander Bosman Can buy then now. Just bought a 1000w Bafang Ultra mid motor emtb with 960wh battery. (48v 20ah). Luna sells 52v21ah batteries for their Apex bike. But seems unlikely mainstream Euro manufacturers will use them any time soon due to the 250w motor limitations.

[@JohnRushworth]

It’s not just about capacity in Ah it’s about the stored energy in Wh and the density of that energy in terms of volume and weight. It doesn’t follow Moore’s law like computer memory but we have seen Energy densities increase and they will continue to do so. It also very much depends on overall system efficiency of the motor and controller as if those losses can be reduced we increase range for the same Wh energy density battery. In other words we reduce the Wh/mile used, so getting more range.

[@ArthurDentZaphodBeeb]

Doesn't voltage deserve mentioning? Also, not charging to 100% will extend battery life significantly - which augers for larger batteries but at 80-90% charge. Can buy aftermarket chargers that will allow you to select percent of charge.

[@mazivco]

do you know if its better to drain it below 20% before charging ? and if half a charge to 50-70% is good or bad for this kind of batteries?

[@rob902110]

How would a 5kg back pack battery affect weight distribution! It would be like someone ridding with 5kg of extra fat. Are you saying someone who is 5kg heaver has a weight distribution problem! and your bike is 5kg lighter!

[@th_js]

Where's the Giant system??!?

[@enzorum2560]

due to UK and Europe laws, ebikes are limited to 250W and 15.5mph (25km/h) otherwise its considered a motorcycle and needs to be insured if it goes faster than 15.5mph

[@damacknificent151]

I wish batteries were universal, so no matter how old your bike gets, you can always get a new battery

[@bigspear4358]

why do they never mention giant?

[@slinkytreekreeper]

They just use Yam or Bosch batteries, Giant don't do their own batteries since their 24v city bikes. In other words they were covered.

[@metalldanny]

so you say its better to charge it to 60% if you ride not your ebike for a week .. or charge it full??!

[@Roger101Watson]

If you're going to use it again the next day then charge it to full, if it's going to be a fed days then leave it charged between 30-60%. Basically 2 rules if you aren't using daily ...don't leave it flat and don't leave it fully charged. Your battery will love you for it.

[@metalldanny]

DeadHead thx for the replies guys .. really apreciate it 👍👍👍

[@JohnRushworth]

TomaCukor Not charge to full if stored, that’s for lead acid. Better to leave LiPo around say 60 to 80% charge over time and charge sufficiently every few months of storage to balance cells. Bottom line charge fully if riding soon after charge, less if not. I charge to 80% after my ride and top off in the morning if riding next day.

[@richardallankellogg]

I have heard that not fully charging, ( like to 80% max ) will extend battery life. And that some electric cars do this to get 10 year life. Is this true?

[@markotrieste]

I do the same.

[@14TacomaDR]

Charge time depends on the charger power .

[@2stocke9x]

You said “Subdribe” at the end

[@JohnRushworth]

If folks interested in lithium battery tech I find this a good site and this article explains why we choose certain kinds of lithium batteries for differing tasks. batteryuniversity.com/learn/article/types_of_lithium_ion

[@shanehumberstone5262]

Hi I need some advice,I’ve got a 1000w 36v viron scooter and I need to be able to charge the batteries while they are not plugged into the scooter( no power where it’s stored and I can’t carry the scooter up to my flat ) does it need the control box in the circuit or can I just make a wire with the necessary plugs at each end,the fuse is already wired in at the battery end,thanks for any help

[@oleg296]

Volt 52 volt 910 WATTS ! On my XL 1500 I GET 100 TO 150 !

[@alrado4167]

You mean 52v charger?

[@constancelovejoy7308]

Is making your own battery cheaper than buying one? 😊

[@brianpatnode4680]

I'm "Sugribed" now!

[@darius2640]

I paid for the whole motor so I will use the full motor, put it on turbo and break the knob off

[@Simplyflyit]

what happens when one of the Lith ION cells in the battery dies? I guess the whole pack is garbage?

[@slinkytreekreeper]

Yup, no branded ones are self serviceable.

[@Simplyflyit]

Ya... $1000 replacement for a $3 cell... nice.

[@dodger1x]

Nothing a screwdriver and solder iron can’t solve ;)

[@liamhobson5407]

Don't think I've ever found a "light weight" li-po battery lol

[@TheNosarajr]

Never did say how long a battery will last.

[@firminofire9895]

I think like you being an older person you could justify buying one of these over priced over marketed battery bikes. Personally speaking I’d rather buy a better spec of bike for less money and being able to not worry about rain and crap battery range is mountain biking as we know it and that won’t be beaten. Let’s keep it real guys.

[@ErwinMeulman]

Ebike are a big money swindle of the bike company's, 1euro for 1wah battery. 18650 LG, Samsung, Panasonic cost around 2euro, so 50x will cost 100euro, with some plastic and a bms it will be 110euro. Also the bms gives no indication about bad cells, so you rid 50km from home and the battery stop because 1-cell is under 3volt, with a balanced lcd charger that gives the user a signal it will never been happen, but for the bike company's that's 1euro more for a pcb with a lcd.

[@liamhobson5407]

Abit of false info in this video. Yes the bosh battery will charge to 100% in 4 hours if you upgrade the bosch charger otherwise it WILL take 8 hours to fully charge the battery. All this because bosch have 4 different charging systems.

[@strokenumber3]

"Let's make this a little bit more clear (sic)", and starts pouring water between 2 glasses... 250 W motor and 500W battery really is the most simple of math already. In a recently previous video you told us to "charge the battery to 100% as soon as you get back from a ride", now it's 30 - 60%? I was for a brief minute thinking of at least trying an e-bike, but when you explain the limits of the battery, that causes further consideration; - Don't need to use the battery on downhill or flats. Now you're piloting an unnecessarily heavy bike - Save the battery for use on steep ascents. Well of course, because it's a heavy bike, what with the battery, motor, heavier components.

[@stevejones7956]

Hi Dave, yes about 60% especially if you're leaving it for a while. Heavy bike yes, but still a fast bike!

[@deanschlechter]

Oh hello

[@np939427a]

7-£800 You must be "Mad" Every bike company is taking the piss! Wonder why they use dirty outdated tech? When they know they can use a supercapacitors bank, Instead of a big heavy battery, which would cost slightly more, But away cleaner tech, If lithium can only take 1000 charges and take a poxy 5 hrs to charge up, In my book your getting ripped off! A supercapacitor bank will take well over 1 million + charges and only take 30 seconds to charge to full power and put out the same power or even more power if required depending on your needs, If you want to run a 8,000 Watt motor it can handle it all day long! Try telling that to these outdated bike company that love to ram cheap chineesium crap down people's necks! Don't buy them they are a waste of money when you can buy a marine capacitor bank, They use them in nuke subs and other special kit like aircraft carriers ect, You get what you pay for and some of them bikes are way overpriced and under teched for that price, when you can build your own one and have a full charge in 30 seconds. They have fallen asleep at the wheel for the last 20 years.

[@helenHTID]

A supercapacitor can't hold anywhere near a battery's specific energy volume, And you think lithium batteries are expensive? Supercapacitor: Hold my beer! - They are 20+ times more expensive per watt! They are just not viable for consumer items! Unless you want an iphone that's 2 inches thick with less energy stored per unit mass and costs several times more? lol Having said all this, Hopefully with technology progressing as it is, Something can be achieved.. But these tech companies need to stop and pull their fingers out! It's all about impressing with specs and no focus on how long the power lasts.

[@Al_Gepe]

Is there a worse Way to explain watts vs watt-hours? A simple funnel (with the diameter being the power output) would've made it an amazingly simple and easy to understand analogy!