Why You MUST Use a 24v Supply For Your Lipo Charger

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Your LiPo battery charger's specifications are all lies. 300 watts? 14 amps? Try it. See if you get it.
If you want to know why your lipo battery charger is not reaching its full specifications, here's the answer: you're running it off of 12v. To get the most out of your charger, you probably need a 24v power supply. I'll tell you why, and where to get one!
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[@FPV-Jon]

You forgot to mention that the TS100 soldering iron will be in God-mode with a 24v power supply.

[@kkrampus]

That's not Ohm's law, thats Watt's law. Ohm's law is V=IR (or R=V/I) and is about resistance, measured in Ohms

[@JoshuaBardwell]

Damn, you're right.

[@Ryanfriedman96]

Letting us nerds down! 😂

[@MrGaussFPV]

Learned something 👍

[@YerRand0]

Joshua Bardwell I guess you learned something today

[@Demon-sn1qj]

@YerRandO Wait.... Are you the guy still on 3.2!?!? I thought that was a myth!

[@jimmac]

Parallel charging on the bed. What could possibly go wrong :)

[@ponzi_bunny]

Jakub Steiner 😂 hell no

[@JoshuaBardwell]

It's just an example. There was no light on the floor of the hotel room. Come on... I'm making videos on the road you have to make some concessions. Of course I didn't actually charge the batteries on the bed.

[@licensetodrive9930]

You charged them in the bath instead? :) Hey there's a thought, safety wise, what type of bath (or sink) would be good to charge lipos in? Cue a chance for someone to explode lipos in sinks & baths (outside obviously) for science! and fun!

[@gabrielleberwurst1127]

It was a joke. And a good one 🤣

[@shatterpointgames]

@@JoshuaBardwell Lol you got really defensive there

[@cyclenutus]

Hey Joshua- those of us that fly large electric helis as well are using various server power supplies in series- personally I am using hp dps1200fb power supplies- usually you can pick them up on ebay that have been pulled from servers for 30 bucks or so apiece.. although the last pair, I got 2 for about $30- it is obviously a bit more diy.. but purchasing a comparable benchtop powersupply is way too costly.- in my heli charging case I have 2 in series for 24v 1200 watts- it is enough to drive a powerlab 6 and a powerlab 8. I have had both going showing a total of ~60amps on the charger side of the power supply.. with that setup, i can charge 6 6s 5000's in about 20 minutes on one charger and a bunch of either 3s or 4s on the other chaarger at the same time.

[@XZLR8N]

Even your most boring videos, such as this one, are still entertaining enough for me to watch on my lunch break and informative enough to make me say "wow I learned something".

[@EbonySeraphim]

Your conclusion is spot on, but there's a far simpler way of looking at the issue using Watt's formula that you present in the beginning (note: it's not Ohm's law). Input current is not a likely issue if you're power sourcing from a battery or external power supply. The supply or battery will be able to push more than your charger should be drawing, so in the end, you're likely only working with the voltage to scale things up or down for your charger. That being said, beware of power supplies that may be imbalanced in a direction that's not useful for you. There are 1000 watt power supplies at 12v@85A, but some power supplies will not make use of 85A. If your charger only accepts an input of 30A at 12v-28v input range (making it an ~850watt charger), that power supply can only give it 12v@30A which is 360 watts of power. Terrible! If you had a 600 watt power supply of 24v@25A, you'd could actually get the full 600 watts. Both variables matter, but voltage is normally the one you want to be on the upper end of for your charger, and you could fall short of, or exceed the current ratings of your power supply as needed and it won't really matter much. If you're plugging a charger directly into a wall socket, you're dealing with AC power @120v US and 240v for most of the rest of the world, you need an AC->DC conversion and will yield a very different power rating for any charger so read up on those specs separately.

[@tweekFPV]

24v for the win! I run my isdt and ts100 off of a 24v psu. I get the whole 14a and the ts100 heats up in like 12 seconds :D 👍 👍

[@CrazyQuadBrothersP3]

Joshua has done it again. Many others and I just learned something. No BS, thanks Bardwell...😎

[@_M_a_r_t_i_n_M]

This is why I went straight to using deep cycle marine batteries wired in series or 24V+ (sometimes adjustable) switch mode power supplies the day I began using a 'real' hobby grade charger which required an external power supply.. Once that HITEC 50W charger wasn't quite enough when I stared to fly helicopters larger than

[@miguelquiroz1550]

Excellent!... JB. You are a Huge source of information for technical. You are a GOD for FPV community. Thanks for all your videos!

[@dash8465]

Around 2008 I spent $250 bucks on a 50amp 12v server rack power supply and four Cellpro 4s chargers, all nicely mounted into a small freebie cordless drill case.. it still works perfectly today. Xt60, xt30, JST, Deans.. does not matter..they're not even conneted to the charger. The Cellpro's are true balancing chargers straight through the balance tap. Many planes, helis, buggies, boats.. and lipos.. have come and gone, but the charger setup is still here and its the best RC money I've ever spent, by far.

[@TommyShlong]

How much would this set up cost today? Links to similar products to build this would be immensely appreciated. Thanks!

[@Arek_R.]

Manufacturer should usually list the max input current from which you can calculate what is the minimum voltage required on the input to reach the max output rated power. I couldn't find this info for your Q6 Plus, for my Q6 nano it was available tho.

[@RidiFPV]

Which leads me into my favorite electricity joke.... Watts up Ohms! 🤣🤣😂😅😆😐😐😑😑😑

[@ronin-phoenix_7]

Dear Joshua, from all the youtubers your content is the most precise and technical, it is great for people like me trying to understand electronics to get into te fpv. I’m an airline pilot and I’m making my own ground school before I fly ( like with regular aircraft), the info is very dispersed and to find something sometimes you have to be very specific on the search, or other times the info is obsolete due to new stuff. It will be awesome if you make short videos about each part of the drone, there is a lot about radios and goggles, but when it comes to motors or blades or any other part is hard to find info when you are new. If you decide to make a virtual school showing rotors, amperage, speed, capacity..... specific things about each part, I will gladly buy it and I’m sure a lot of guys like me would buy it. In aviation you have to finish the ground school before you go to the plane, and I’m trying to do the same stuff here but as I told, is hard to find info. I remember in flight school there was a company name Kings school, they are an old couple giving aviation lessons and I remember that there were like 40 dvd and each dvd was about an specific theme with precise info, if you have time, take a look of that and If you like it I will recommend you to do that with drones, and I’m pretty sure that a lot of people will buy it. Anyway thanks again for your content and sharing all your knowledge and as I said you are very technical when speak and make us understand .

[@domogenesis726]

showed up to learn how to power my 80w turnigy learned that my charger ain't shiit still love this hobby u.u

[@NitroStarGT]

Great info here and I almost missed this info if not for the Arrma forums before choosing another charger. I bought a used iCharger 4010 duo and an 12 volts 75 amp RL power supply due to the iCharger input limit being 65 amps! I can charge a 4s and one 6s 6000mah lipo in under 40 minutes at only 1c. Love it. All kinds of setups. Can tell it to storage charge or discharge to whatever voltage you want (I prefer 3.85v/cell). It will discharge or charge until it's done in just a few minutes. Can discharge at a high rate into light bulb bar or resister also. All with a 12 volt power supply.

[@mikej8940]

ahh this takes me back to my car audio days when your buddys 2000watt crunch amp only had a 20 amp fuse and you laughed at him

[@Cheranetube]

I just love your sense of humour. Kudos.

[@ericapelz260]

A great explanation, most people get lost in the math.

[@dronecamps]

Very clear. Loved the explanation Joshua.

[@benedekvajas6545]

I have a 12v 20a led psu and there is a knob to crank up the voltage to 14v. It supplies the desired 14a on the same charger :) Also it's important to use at least 16AWG wire not some crappy wire you find laying around. It cooks itself under that load and wont provide the those amps.

[@benedekvajas6545]

After watching the whole video, yes it only works if you are only charging 4s batteries.

[@bewing77]

On a related note, if you are driving to where you are flying (or don't mind carrying a bit of weight), rather than getting a "big" S6 RC Battery pack at like 10,000 mAh you can get a battery for a camping trailer or RV - There are old style Lead/AGM/Gel type batteries (same tech as a car battery) but there are also Li-ION versions, which however are more expensive. I have the latter, it's a "S6" (25.2V) pack, about 25x20x30 cm in size and weighs 3 kg. It has a capacity of 110 Ah, meaning 110,000 mAh! You're going to have to rip quite a few 1550 mAh packs before emptying it, and since it's 25.6V you can charge a lot of packs at the same time at full current. The Li-ION packs are pretty expensive, but you can get a traditional 24V pack of 100-130 Ah for something like $200 and the chargers for these are not that expensive and you may already have one for your car., You can of course also hook it up to your car to charge it while driving, that is not an option with the Li-ION variants. Another thing that may become big in a couple of years is to utilize your car - that is if it's an EV. My car is a plug in Hybrid and I hijacked the HV system that runs drives the car. Fully charged the battery pack of the car carries 16.8 kAh - a whopping 16.8 million mAh. Even if you charge 100 packs from it you won't notice it on the car range. And should you be low the charging circuits of the car are massively powerful allowing you to convert gas into charge almost instantly from an RC perspective. Like I said, these are not what everyone is driving today but in some years maybe they are and for an engineering geek it's an excellent challenge to make this system accessible.. The fact that it involves circuits at 40.000 Volts with enough current to kill ten elephants just makes it more interesting.

[@golferchin76]

At least of 2020, most lipo chargers capable at 15amp and above, require DC input (a power supply). Most users don't require that kind of amperage. But some of us will charge 25-30amp single or 50-60am dual, especially people who frequent race tracks. That will require 1000w+ power supply. Can get cheaply using server power supply, with some soldering.

[@MagicFPV]

You have got so good at talking to the camera and explaining things in such an articulate way. Also great intro and outro! I unexpectedly watched the whole thing

[@dividingbyzerofpv6748]

something else to consider. Some chargers work below 12 volts while others do not... My ISDT T8 will not work under 12v. This can be problematic if charging off a lead acid AGM battery, as soon as it sags below 12v the charger may shut off. Which means charging 4s Lipos, nearing 16V at 5amps you will be pulling a lot more than 5amps from your 12v supply. As your source battery sags you will hit that voltage limit more quickly. Wire in series and be on a 24v system and you are good to go. Pulling less amps from 24v while being able to not worry about battery sag on the input side. I kinda messed up on my portable box when I bought my powersupply. Did a 12v 600w setup but I keep it pegged at 13.8-14v and on a 10amp output charge I see the power supply sag to around 12.6v. If I ever rebuild I will use a 24v input.

[@trif55]

It's always worth comparing different chargers amp ratings if you're charging 4S, From that point of view, the iSDT SC-620 was the best value at the time, and has a 24A input limit, that means the max output is 336Watts, the 12v 24a input limit is 288watts which isn't too bad really, if you have an old Computer PSU and want to spend less than $50 on a charger i'd really recommend!

[@ferdinandoantinoro]

it’s so true what you say, that ISDT made its own PWS with voltage output of 27 V. it’s not a random choice.

[@WildpixFPV]

Thanks Joshua for interrupting the quadworld's blastyness for our education! And now get the hell out and have loads of fun!!

[@rapidunscheduleddisassembly]

Great as always Joshua:); following your math for the ISDT T8 "Input Amp limit 35 A" so times 24 volts = 840 Watts

[@hobbycenter61]

ISDT P20 have 35A input limit and 1000w so it needs at least 29v psu. with S-600-32 you can power most isdt models

[@user-in1gn6fw2eab]

Thank you. Although it's not ohms law but Watts law 😅

[@brianbush9453]

Here is your issue; you were correct in stating you can't have both... in all cases. Your amps are limited by max watts but this has nothing to do with your power supply.. if your power supply can give the matching draw amp/watt that your charger max's out at there is no chance it's the limiting factor no matter your voltage supply 12/24. What limits a charge amp draw is the watts but it's based on the lipo's voltage... the higher the voltage the more of a potential limit you have. Say the lipo is a 6s pack.. your max amp will always be 13.5amps with a 300watt charger... no matter what supply voltage you throw at it, the charger and PS maybe capable of 40amps but the only way you are doing that is at 2s or get a bigger charger :) 300/22.2=13.5 300/7.4=40.5

[@JoshuaBardwell]

No, you're still missing the point. The point is that there is a totally separate restriction, which is the input amps on the charger.The charger will throttle the output once the input amps hits the limit. If the charger's max input current is 20 amps then the max output it can possibly provide at 12v input is 12v * 20A = 240 watts. This limit is completely independent of any of the other specs of the charger, such as output watts or output amps. A responsible charger manufacturer could design the charger so that it can reach max output power on 12v input, and some chargers do this, such as the ISDT T8, the iCharger X6, and others. But many manufacturers don't do this.

[@brianbush9453]

@@JoshuaBardwell even in your example in the video if you plugged that isdt into a reasonable 12v powersupply, that could do over your max need it would work.. nothing to do with your charger and input voltage... 300/14.4= 20.8a but your charger is limited to 14a so the max it will ever do on those 4s packs is about 200watts, so if you had a 12v ps capable of over 200watts and over 14a's it will work with out issue.

[@echobeefpv8530]

I use a Q6+ and a T6 Lite , both ISDT, from a Banggood 360W, 24V supply. The best thing is both these chargers show exactly how much they are drawing, in watts. I've never come close to 300W, never mind 360W. Even in all day flies, I can keep all my packs happy, without worry.

[@psychwardfpv4353]

Oh i definitely learned something today! you just confirmed what happened to me with my newly converted 650 watt PC power supply and ISDT T6 lite. Using an old hard drive to provide a load so the PS can operate at full power until I can solder in a 10w 10ohm sandbar resistor. I didn't realize it was an input voltage /watts that was causing the restriction.

[@JoshuaBardwell]

T6 Lite has something like 20 amps input current so it can do better than the Q6 in this video.

[@slideoff1]

we appreciate what you do for us Josh, Thank You. Cool ending too!

[@edsherrod5216]

Good info - even for us "fixed wing flyers" who watch your channel 🙂 Since I fly 4S 5000 mah batteries and have a power supply that has two output ports 12V @ 14 Amps each (29 amps total), I don't think I'll be trying to parallel charge multiple 4S 5000 mah batteries with my current setup.

[@tauschfpv3797]

I would highly recommend an Altronix power supply over other brands. We use them for nearly all of our panel builds in commercial and industrial environments because they nearly last for ever. They are also made in the USA. I’ve been using an Altronix 6amp 24vdc for charging my lipos.

[@PrerunninF150]

What a helpful video. I"m in the market for a new charger because my old one couldn't handle my 6s battery even at 1C. The charger is 6s capable but only at much lower amps. Crazy how misleading most charger specifications seem now that I know the math. Thanks for the info.

[@JoshWithrow]

Great video! I learned something today... again. Seems like a bad habit when I visit this channel. I'm getting to a point where I'm gonna need to start dumping less desirable knowledge in exchange for Bardwell knowledge.

[@fpvrc9829]

Hi josh, i found explaining ohms law easy if you use speed time and distance, its clear if you change one, it effects the others. also using a triangle, you can cover the one your trying to calculate.

[@NextLevelCode]

Joshuas bed is electrifying 😅

[@starshipfpv]

Look like you're having a awesome time..Thanks for taking some time out for us

[@Ozzy3333333]

Opps, the 306B is 1000W and runs 500W on 12V, the GT1000 is 1000W and 408W on 12v.

[@raulfernandez9111]

Subscribed. Thanks for the clear explanation on how everything works.

[@vektr6278]

RC & quads are really alot of good education & information. Thanks!

[@knirb01]

Thanks for the info Joshua! I was just about to get enough batteries to max out my charging board so this will help immensely!

[@jessegalego3893]

THANK YOU MAN!!!! BRAND NEW TO ALL OF THIS!!! your explanations made perfect sense! Now off to buy a charger and power supply

[@princefpv1]

i have been using my thunder power 820 charger for 9 years she came with me from 3Dhelis to my quads and still works like its new . the charge is 800 watts 20 amp 2 charging ports and my maxamps 24 volt power supply

[@PIXscotland]

As you say the 300W is the max expected output delivery, so with a limit at 14A you'd need the voltage of the cells to be around 21V. For best input power efficiency the input voltage should only be maybe 2-3v above the required output. That means the voltage dropped in the regulation/charging circuit is kept low so reducing the watts lost inside the charger. Switching supplies are more efficient than older linear types so the losses are far less, but they are still there. So if you are feeding the charger from an external power supply the voltage should be VOutBat plus maybe 3v. There is no gain in going above this, you are only losing efficiency.

[@dsfghzxc6604]

TLDR you should use max volt-in to get max watt-out, you don't have to use 24v if you don't need or want the full output

[@Edgewalker728]

As always, very good, VERY informative. You made a 2 minute video into a 10 minute video but not in a bad way, but in an epic way!

[@michaelpetale6872]

Great info JB! Like the light hearted bit at the end@👌👌😀🏆

[@olds97lss]

I've found that pretty much every DC charger does this, but there are a few exceptions. Most DC chargers put out about half their rated watts at 12V input.

[@DannyTillotson]

Worth mentioning the T8 1000w needs more than a 24v input. It has a 35A max input, so 24v x 35A = 840w. Need 29v at least and it only goes up to 40v input too.

[@TommyShlong]

What's the voltage you get out of a home outlet? Isn't it 110V? I'm sure I'm missing something that will explain why a regular outlet is not enough.

[@excchp2284]

Think I learned something today

[@Bmr4life]

I always check all the charger specs before I make a purchase.

[@ModMotorMayhem]

phenomenal explanation! Very easy to understand and follow. Thanks

[@doktordrone]

thank you very much, JB, please stay safe and healthy 🙏👍❤️🥃🥃

[@seafurymike]

You should also consider the AC current being drawn in the full setup. In this case a 300w supply will pull 1.25 Amps on 240v - no worries!, but bigger setups may exceed the breaker rating. Given you spoke about paralleling up power supplies, it may be prudent to mention issues that could arise from such a setup and safe practice of hooking them up together.

[@JoshuaBardwell]

You need a pretty huge supply to pop even a small 10 amp 120v breaker. That's 1200 watts for goodness sake. And most household breakers in the US are 15 amps.

[@globaldesi2956]

Thanks Mr bardwell for another great informative videos

[@scooterpie1143]

Excellent video. Just so happens that I am in the market for a power supply for that exact charger.. THANK YOU!

[@licensetodrive9930]

The input range of the iSDT Q6 Plus is great, I can run mine off my 7S ebike battery, allowing the full 14A output for parallel charging.

[@juliejones8785]

Good info. Also note, ISDT T6 Lite is 30A input and T6 and T8 are 35A input. Being pragmatic, at 14A I can parallel charge 8 1500mah batteries at 1C. I would be curious to know how many flyers actually do that.

[@Freedomflyerscraig]

All the best to u guys. Enjoy. That's wat life is about. Great vid. Helped me understand a lot

[@just_noXi]

That is why you should use multiple Q6 Lite over the bigger 300W Q6. Also you don't have to watch for having all packs at the same voltage. Using 3x Q6 Lite on xbox360 power supply (the biggest one) I never had one case where I need to wait for one "voltage cluster of batteries" to be finished before charging others.

[@johnvodopija]

Hello JB, This was a really helpful video. Thanks JV 😎

[@MattVentureNL]

Great video! That little bit of math was making things so clear. You saved many hours of charging time with this story :-) Also explains why my 6s field charging lipo is doing such a great job.

[@skyfoxfpvulpine]

JB, you over work yourself! Go play and have fun some! You deserve it!

[@SteelyEyedH]

Thanks for this, it’s something I feel I should have guessed as my Turnigy chargers only ever push out 3.2amps * 16.8v yet they says they are 300 watt, just presumed they were lying like car manufacturers do for mpg!

[@JohnCuppi]

Thank you, this makes a lot of sense. I was trying to figure this out almost a year ago and ended up getting an iSDT T8 and a 750w 12v server PSU. Input from that PSU is ~422w (35*12=420) and output is around ~396w. If I'm understanding right when it comes to the ISDT T8 for 4s batteries 35*16.8=588w, so I guess my charging situation is not the best that I thought ... but also not the worst either. By pure luck, it just works for what I've been using it for (10x1300mah 4s at 1c or 2c... on a JB strix board ;)) If I had a 14a input limit... YIKES.

[@hypurrfpv9483]

I realized this when I bought my ISDT charger and saw people recommending a 12v power supply. Batteries are over 12v so I knew that would present a problem so I got a 24v supply.

[@JoshuaBardwell]

Stepping up the voltage is no problem. Just the input current is a problem.

[@nosmokingnl]

I use a dell laptop charger as my power supply. Rated at 19v, not 24, but can be found cheap second hand.

[@JoshuaBardwell]

Unfortunately it probably maxes out around 70 to 140 watts.

[@nosmokingnl]

@@JoshuaBardwell Yep. 130watts to be exact. Good enough for my situation . But true,not using the full potential of the charger. Cheap and silent solution though.

[@anthonyantoine9232]

You're slightly wrong here. More amps doesn't cause more heat buildup, as you say. What causes more heat is higher watt output. Watt output is a direct measure of electrical power output, which has a direct correlation with the power of heat output. For example, if you've got 1 amp going across something with a voltage drop of 10 volts, the power output is 10 watts. Now, say you've got 10 amps going across something with a voltage drop of 1 volt, the power output is also 10 watts. In both of these cases, assuming the materials used are identical, the heat dissipation will be identical.

[@JoshuaBardwell]

Since the input voltage is assumed to be constant, more amps equals more heat.

[@anthonyantoine9232]

@@JoshuaBardwell Fair enough. It didn't sound to me like that's what was being said, but if that's what you meant, that's fine. Just wanted to make it totally clear in case anybody understood it the same way I did.

[@devilsoffspring5519]

Your charger's specs are not "lies", as you put it. There's a maximum input current, and maximum input voltage, as well as a maximum power. You cannot exceed any of them, so if you can't reach the charger's max Wattage without it shutting off, it's because the input current is too high and you need to use a higher-voltage power supply to provide more power (Watts) at the same input current (Amps.) It's not a "lie", it's the charger protecting itself--which is what it's designed to do!

[@rcbrush99]

FYI... not pre-wired, or with much instruction, via the RDQ link - I purchased one. Otherwise, a nice package of necessary parts.

[@james10739]

Ya you just didn't read the whole manual that presumably the max input of 14 amps and disregarding your voltage

[@JorgeJimenez2020]

You've convinced me. Actually I was on board with this before from your previous videos. I've got my server PSU based power supply build already in progress. 24V, 870 Watts baby yea!... :)

[@fsarfino]

Icharger x6 puts out 24a charge rate off a 12v marine cell battery. Amazing little field charger

[@tomeaston2962]

3:10 Max power (watt)

[@Matraxea]

I was dealing with this.... I was hitting my 15A input current limit on 12V and getting the same 10.8A at 4S charge. Q6 Pro. Haha. I'll change it over to my 24V supply.

[@arlemooldijk1595]

Unfortunately not all chargers can work on 24V input power, many only work up to 18V and then they start complaining about too much input voltage. I'm still on 12V because of this, but using 4 chargers on one server powersupply so not that big of a deal.

[@godsun358]

You have all the fun

[@ncbassmix]

Besides what law it is, it was explained well. Thank you sir.

[@JoniTse]

isdt sc-620 is a 20A charger :). However max power can only be achieved with 24V+ PS.

[@jjangpapa]

god damn... that's why I use 250W 16.5A supply, its output is 15.1V*14A = 211.4W = 16.8V*12.6A... you're correct.

[@mmmasterscross7915]

Great video! Alot of help.Thanks

[@corycoyle6725]

Totally just had this same scenario happen today with the same charger!

[@ArceAngel]

old vid but just wanted to thank u for the very well explained info. news to me as i was debating on a 150 or 300 watt but will most likely use 12v so 150w now sounds better and will save me a lil money. thanks

[@MGee1]

I love your explanations....going to have to refer back to these when my son turns around and says 'when am i gonna use this science stuff in real life dad?!" RC is such a great hobby for teaching science, engineering, hand eye coordination, even art if you enjoy painting up bodies. May even try and get him reading the manuals in chinese and by the time he's off to college he'll be a flippin' PhD! :P

[@randomc1949]

Thank you, been trying to convey this simple idea to people in the hobby for ages but they insist that their 12v computer power supply that outputs 80A can handle it. Hopefully this helps get it through.

[@JoshuaBardwell]

The PSU may output 80 amps but the charger will only pull 14 amps and that's the limit.

[@WarChest]

I’ve been looking for something (not very hard) to replace my XT60 spliced laptop power supply (it runs at a measly 16v) that I used for the ISDT Q6. Looks like this is the solution. Thanks JB! 👍🏻

[@quallsalmighty7441]

Bro I gotta say. Really enjoyed this one. 👍🏼

[@shawnzfpv]

Input current limit! It's on the ISDT site. The bigger chargers (SC-620, T6, T8 etc) can so a lot more with 12V. Q6 / Q6 Pro have a 15A input current limit. The Q6 Lite is 12A. At 12v that's a lot less watts to be able to output. T6 lite has a 30A input current limit. T6/T8 will do 35A input. The SC-620 seems to be limited to 25A input. I use an Amazon 24v power supply for my Q6 but that RDQ option looks solid to max out the Q6. If you are using one of the bigger chargers (SC-620, T6/T8) and you are charging large 6s or a bunch of 6s parrellel that's like 500W to push 20A out. The bigger changers will do 30A out but again to 6s that 750W or so. 8s at 30A is why the T8 is 1000W rated. Bottom line, if you want to run a T6 / T8 hard, you better have a heck of a power supply feeding it keeping in mind the necessary volts as well as the watts. T8 full tilt is a big 36v power supply.

[@burgerlord1297]

Stinger gettin buckkk

[@propstrikerc875]

I use a 12v psu turned up to 14.5v I can get about 13a at 4S voltage. Tops out around 230w.

[@Neonbusa]

Look into icharger 65 amp input limit on there 4010 and upto 50volt input i have 2 of these setup they are total work force chargers

[@jakestyles002]

How about using a Milwaukee M18v Lion Battery with a usb adapter to power your M6 Charger? "Life-Hack" or "Certain-Doom"?

[@charliedoubl]

nerdsplosion. love it JB

[@earthbouncefpv531]

Even tho my boy f'ed up on Ohm's law. Why isn't this guy over 100K subs yet. Still killing it with the knowledge everyone needs to know. I still love my laptop power supplies to do this job. Typical can get 20v @ 3 to ~5 Amps... Not going to get 300Watts, but a good 80-90Watts with ZERO noise. I then don't parallel charge and just run many iSDT's off laptop PS's. Zero noise = Happy wife... Talking to a guy that owns a PowerLab8 1300W Charger. But always wanted to know if i could hook up these Laptop power supplies in parallel to get 20v @ ~10amps @ zero noise.

[@lostjohnny9000]

Yes it's doable but even with identical PSUs I'd use 10A diodes to stop one supply from back-feeding current or transient spikes to the other.

[@MrSabram07]

Thanks, this is like the 5th time I watched this