Poundland vs Poundworld NiMh rechargeable cell showdown.

[@SierraLimaOscar]

This is the dumbest, most brilliant battery capacity test rig. You deserve a technical Emmy for it!

[@48snapper]

Excellent video Clive. Your battery testing device is a work of pure genius.

[@nfreddyyy]

I agree! So awesome. I always learn so much from big Clive

[@eformance]

They've got Poundland, Poundworld, now they need PoundTown.

[@confusedkemono]

PoundCity, PoundPlanet, PoundPlace etc.

[@leebiff2995]

Против Глобал b

[@johniksushibar165]

also a 99p shop, never been there but i imagine they are pretty much on par with tatarama poundland / world tat....just cheaper.

[@6F6G]

+johnik sushibar There was a chain of 99p stores but they got bought by Poundland a few years ago. Inflation jumped by 1%.

[@stinkycheese804]

PoundSand, PoundN.Korea, PoundDingDongUn, 10PoundBBQSammich, PoundEnemaAtGunpoint

[@RWBHere]

1100mAh is really modest for AA NiMH cells. Cells with claimed capacities of 2500mAh were on sale at least 12 years ago, and the ones purchased all delivered at least 2200mAh when tested. Some of them are still in use here, and delivering 1200-1400 mAh. Some died long ago - damaged and one totally destroyed by the supplied charger, before I knew any better! - but they've all been in regular use since new. Thanks for the heads-up with the Poundland ones, Clive; they're worth the price.

[@thelbp]

your Ah-o-meter is the work of an ABSOLUTE genius. i really want one like it.

[@jp-um2fr]

Clive got me back into 'gubbins' after a 50 year break. This time he's too late. I bought 6 Poundland AA's and ended up buying 16 more. They really are good for garden lights. I had 5 (one died last year) and they have faithfully been lighting up every night for over 6 weeks now. Every garden light now has these things hanging inside or (outside wrapped in cling film ) and they are worth every penny. So far after many videos Clive has not dropped a single clanger. You really do know you stuff mate. Thanks.

[@ODX171]

Great review Clive and appreciated. Living in Canada we don't have any Pound.....here. These are the kind of reviews that are needed to educate all of us. Thank you !

[@ElmerFuddGun]

1:59 - No. Not a "small fraction of the energy of the alkaline cell". The capacity of the cell from 1.2 V to .75 V varies with current but is much smaller than above 1.2 V. The majority is above that.

[@gl5301]

Clive, I think you should do a massive test of all the cheap-o rechargeables you can find. It would be a great service to the community. Build multiple load clocks, livestream it over several hours. Anyway, would have been interesting to see these opened up and their internal construction scrutinised. Also, fire is always good

[@johnfrancisdoe1563]

Gavin Lewarne He has done both in the past (obviously with the cells sold at the time).

[@gl5301]

I know, but who doesn't like the potential for more fire and personal injury?

[@SpikeBlighty]

Tremendous testing. I have been using both brand of cells in my Gamepad. and have noticed that the poundland cells appear to last a lot longer. Thanks for confirming my suspicions. Great stuff.

[@Eyetrauma]

Even if the capacity isn't the best I'm kinda amazed at how you can get some rechargeable batteries for a pound.

[@Zadster]

A two transistor constant-current load would make a great little project!

[@Lintary]

Wonder how the new range of IKEA NiMh cells hold up, we have them now in low and high capacity version for both AA and AAA.

[@johnpossum556]

I was wondering about HFs because when they have 50% off sales I buy them for small shit. I suppose some one would have to mail him some.

[@JTLowry]

I haven't done any testing, some people online say they're rebranded enloops as theyre made in Japan. I don't know but I find them quite good in my camera flashes and the 12 battery charger they have is really useful for someone like me who uses lots of batteries, even if it's a bit slow.

[@Lintary]

Guess I will have to pick up some sets and mail them.

[@leifsimmons2464]

The old green/silver IKEA Ladda cells are pretty good. The new ones are supposedly the same as the Sanyo Eneloop (the Eneloop brand has been sold to Panasonic) and are very good too. If you take the price into account, then the IKEA NiMH cells are a bargain!

[@JTLowry]

I tested mine, fresh pack ladda labeled at 2450mha and out of the pack of 4 I got capacity ranging between 1640 - 2859mha I used a liltokala charger test function. Make of that what you will

[@Pistoletjes]

So... travelling with limited room for stuff, but you did bring your Ah-o-meter? Puzzling... :)

[@stonedsavage7814]

i heard that clive owns and makes the "fake riddex" rodent reppeller which only really had a led light xD

[@Anvilshock]

"Oi Lee Chin? - Yes, Mista Poundworrd? - Remember the waste lead you guys've been spilling into your rivers? - Yes, Mista Poundworrd! - Start filling some in the rechargeables we've been ordering from you, there's a guy on the internet recommending to buy the heavier ones. - Yes, Mista Poundworrd!"

[@BoB4jjjjs]

Very interesting. Keep the price down and profits up no matter what the cost. Loose customers fast! Well done Clive, another investigative report.

[@veronicathecow]

I love both the choice of subject and the test method, sheer genius.

[@-yeme-]

I was at a poundworld a little while ago that had converted into a poundworld plus or something, the same shop but they now sell stuff thats more than a quid as well as the usual range of £1 items. theyve updated their power banks, they come in the same single cell case as the crappy old £1,

[@-yeme-]

ah no, you get the case and the charge/boost board too, hence "power bank", and the cells are perfectly good. but the key point is that theyre from poundworld and they actually have the capacity they claim.

[@IrishSkruffles]

Here in Ireland we have Dealz (poundland equivalent ..apart from everything is €1.50) which sells the fusiomax brand, might have to pick up some just to see ;) I bought a 4 pack of NiMh AA batteries in Lidl for €4 just because it said 2500mAh on the packet.. It'll be interesting to see how fast they drain without use

[@bigclivedotcom]

On the Isle of Man it's Dealz too. At £1.20.

[@IrishSkruffles]

Bigclivedotcom Well isn't that a steal.. I don't suppose you saw the camping light in Lidl on your travels? It's a dynamo light with an internal NiMh battery and radio.. might be worth a look? :)

[@matthewday7565]

Good luck with the supermarket ones, of all the NiMH I've had, those seem to let me down by going high resistance - my usual charger would dutifully sit there passing just enough current to keep the charge indicator on, but a better charger (I now own a MaHa MH-C9000, fiver from a charity shop - Yay!) found them out, in fact they were too bad for it to even recognize and measure.

[@commentpost907]

Just wipe the 'dust' off my scales *sniff*

[@HenrikG1963]

Can't stop laughing about your battery tester i a good way. Brilliant.

[@Landrew0]

Clive's videos end abruptly as a bagpipe recital.

[@acreamymoose]

I've tried these Fusiomax cells in a Xtar VC4, the capacity from flat to full has always registered +/- 10% of the package rating which is good. However the shelf life between charges seems to vary greatly between packets, some self discharge in less than 24hr and some stay charged for weeks. However the best cheapo cells I've found so far are the 2300mAh Lidl Tronic cells, that the VC4 estimates capacity at ~2550mAh and hold charge for weeks without an issue and usually found at £2.99 for 4 so only 50% more than Poundland for more than 50% greater capacity.

[@karl9460]

I use and test these too, and agree that they are best for things that you do not use often but also do not mind charging up before use. Like a radio that you rarely use except when you are out in the garden for instance.

[@johnfrancisdoe1563]

acreamymoose When dealing with shops like Poundworld and Lidl, it's important to say when a good or bad product was bought to avoid confusing similar but different promotions.

[@shurdi3]

Friendship with poundworld has ended. Now Poundland is my new best friend

[@cookiehcake1114]

I live in America and these videos have created a large rivalry for me.

[@SlyPearTree]

I have a similar clock except that it's the size of the black box, 1 AA battery length ^ 2. I got it at a workplace that was going out of business with the permission of my boss. In any case I did not use it because I do not like the ticking and my bathroom is the only room without at least one clock and I do not need one there. Now I have a use for it, thanks.

[@jasejj]

7dayshop sell very similar 800mah AA cells 8 for £2.99 delivered on eBay which is a good alternative for those who can't make it to the pound shops. They test out at exactly 800mah which I can't complain about. Only 15 grams though. Edit: At least they used to, they're now £3.69, the greedy barstewards. RS are also selling 8 for a little under 4 quid. It's a good price for clocks, remotes and other low power stuff

[@TiptreeJams]

Now PoundWorld are closing down I had to check back to remind myself as to who's cells Big Clive recommended. Glad to see they were PoundLand ones. Need to get some more.

[@Sky2theRim]

Poundland is much more reputable as a company than Poundworld

[@bigclivedotcom]

+Dan Bana They definitely take electrical safety more seriously. Poundworld has sold some very dodgy stuff in the past.

[@TheTemporalAnomaly]

Until watching these videos I used to buy Duracell without question. I remember the tests on Simply Duracell, being shown up for the rubbish they are, beaten by a Pound-land cell!! Keep up the good work Clive. I watch with interest.

[@krashd]

Yeah, names like Energizer and Duracell were exceptional when all their batteries were made with the same high quality, but then they saw the market in having both budget and premium batteries with the premium being what was once their regular product and the budget one being just cheap shit like any other but at a price that is only budget compared to their premium batteries. Typical moneymaking.

[@andytipping70]

Hi Clive - love your vids and the humour. On the subject of poundland AA cells, the wording on the batteries advises to "follow the charging time" but nowhere - either on the packaging - or on the battery itself, does it state the recommended charge current or time. Ive plumped for the 10hr rate for 14hrs should be ok?

[@Cashpots]

Clive, Is there any chance of you discussing the different types of desolder braid? We used to have one type at work (many years ago - now retired) that worked perfectly whilst others were downright useless trying to do the same job. Do you have any tips for which size to use, different width for different jobs etc.?

[@mentatphilosopher]

Reed switches for telecommunications switching fabric disappeared in the North American telecommunications network over a decade ago. They were the last analog voice technology, Every analog line is converted to digital as soon as possible and all the trunking is digital now.

[@johnfrancisdoe1563]

mentatphilosopher Reed switches are digital 1-bit devices. The circuit that connects the computerized telephone exchange to the "last mile" subscriber copper pair often still contains a miniature relay to protect the electronics from electrical events at the customer premises or along the line.

[@mentatphilosopher]

John Francis Doe As far as I remember there are no reed switches on the current 5ESS line cards. Protection is currently done in the electronic cross connect frames because that is nearest to the outside plant. I'll ask the hardware guys or take a look. The reed switches in the 2ESS (Bell Labs) and 2EAX (Automatic Electric Labs) priced themselves out because of the copper in the coils and the gold used on the contact surfaces. There was a massive number of them in an urban configured switch. They also made a nice swish noise when switched in mass during a network diagnostic run.

[@NOWThatsRichy]

Hi Clive, I've used the Poundland rechargeable batteries for various applications they seem fairly reliable, but have in the past bought Lidl's 4 pack of cells at £2.99, their most recent offering was 2500mah, I've used then in my Sony minidisc Walkman, they last for hours and hours, but they are a slightly bigger diameter, I found this out when I originally bought a set for a scanner receiver and found when trying to fit the last cell it wouldn't fit in!

[@joylessdave]

i had this a baby monitor i got had bad nimh batteries so chucked them bought new and the new ones were a very tight fit (i had to force them in. so i googled AA battery size and found this en.wikipedia.org/wiki/AA_battery#Dimensions there is a surprisingly large tolerance on the size of an AA battery data.energizer.com/PDFs/LR6CL_EU.pdf

[@webchimp]

My little travel mouse that takes 1 AA is an absolute bitch to get a rechargeable battery out of. An alkaline fits just nicely though.

[@bigclivedotcom]

One of the advantages of the lower capacity cells is that they don't need to cheat the case size tolerance. They fit more items.

[@johnpossum556]

I put a set of 2300MaH Energizers in an old halogen maglight and the size is so big I can't get it out! It's been sitting in there 2 months now...can't get a stiff wire in from the other end. PITFA!

[@rupert274]

John Possum Maybe a neodymium magnet could pull it out?

[@BodywiseMustard]

How does one charge these cells?

[@craignehring]

Big Clive... your just a wealth of information

[@JuanHerrero]

YOU'RE. YOU ARE. YOU'RE. YOU ARE. YOU'RE. YOU ARE. YOU'RE. YOU ARE. YOU'RE. YOU ARE. YOU'RE. YOU ARE. YOU'RE. YOU ARE. YOU'RE. YOU ARE. YOU'RE. YOU ARE. YOU'RE. YOU ARE. YOU'RE. YOU ARE.

[@craignehring]

Oh no I'm nailed by the grammar checker Good job 👍

[@Anvilshock]

He's right, though.

[@jakp8777]

Quite amazing you can get rechargeable batteries for a pound. At dollar tree you get either heavy duty or alkaline (in small quantities). That extra .50 cents goes far.

[@bigclivedotcom]

Choose alkaline over the "heavy duty" zinc chloride cells. They offer better value in terms of the much higher capacity and are less likely to leak than the zinc ones.

[@jakp8777]

bigclivedotcom my experience with the dollar tree 6 pack heavy duty batteries is that they are worthless. Ended up getting the 2 pack alkaline.

[@johnpossum556]

I've gotten some that were DOA.

[@jamisonlm3]

bigclivedotcom, they're so light and have such a low capacity that it makes me curious if they aren't really a AAA battery inside a AA casing.

[@esenel92]

800-900 mAh for an AA cell seems like a bit of a joke and I'd expect there to just be an AAA cell inside. I have sort of found the holy grail of AA batteries and started using cheap PKCELL batteries from china, The green ones are low self discharge, and the AA models come in 2200Mah versions. It's around 13-14 euro's for 10 of em, and in low-power appliances like remotes, clocks, gamepads and so on they really shine due to their low self discharge.

[@ZylonFPV]

I like your lighting rig, it's simple but effective. Also like the clock idea. Simplicity is elegance :)

[@eddiespencer1]

I wonder what it would take to install a backlight or backlit display in that scale...

[@karl9460]

When I run the poundland batteries through my battery tester which runs through various cycles, they come out as close to what it says on the pack as possible. 800mah fully charged. I will test some more though as this was years ago, I keep looking to see if they have bought out new ones. Poundland should get an award for having the most accurate battery mah,,, try maplins, go on, I dare you.

[@Starchface]

I think one mistake is to assume that these things remain constant. This is an illustration of the value of recognized, known brand names. It's about consistency, not the totally worthless "coolness". A known brand has an enormous incentive to keep a product as consistent as possible so that everyone always knows what they are getting. A no-brand product can change at any time without warning. I buy such things myself, with the understanding there is no guarantee.

[@SebBrosig]

A guy I met at primary school, I think he was a bit bigger than us so I didn't challenge his nonsense, claimed to be able to tell if a battery (sorry, "cell") was full or not, by judging its weight in his hands. Those would have been zinc/carbon cells at the time.

[@magdalenmuseum283]

Lidl have recently been selling Ni-Mh AA cells for £6.00 for Eight cells at 2400mAh. I haven't had time to test them, but the first thing I noticed was that they were quite heavy. Not weighed them as I haven't got a scale to weigh grams.

[@PecanPie1102]

How much are they in Jolly ol'? Low self discharge duracell/enlope/energizer are about $2 @piece and have 2100mh power.?

[@TheRealSasquatch]

Finally - a product that would actually benefit from Batteroo's Batteriser !!!

[@jort93z]

you'd break the battery though after the first use. it'll break when you use it down to 0 volts.

[@TheRealSasquatch]

I was thinking more about alkaline cells if the clock stops working at 1.2v

[@jort93z]

theres many products that would benefit from the batteriser. its not that bad actually. might as well use a joule thief though. but i guess the batterizer is more convienient. The batterizer works pretty well with things that have a "high" cutoff voltage. the train dave tested has quite a low cutoff voltage because it is just an electric motor.

[@catlover10192]

The problem was the marketing didn't reflect that.

[@TheShinyShow]

I use those Poundland batteries for stuff like my bike lights. I've been recharging them for a few years now and no issues. They hold charge for plenty of time for that type of thing.

[@gabest4]

Can you paint mAhs at equal distance on the clock face in this test?

[@TheJohn8765]

A decade ago, I bought a bunch of dark-green-top Energizer AA's with a 2650 mAh rating. They all discharged almost immediately just sitting on a shelf (within a day they were down to something silly like 1.25v from 1.35-1.40). Total garbage. That was the last time I bought Energizer's. For a while, Duracell White-tops were remarked Eneloops and I still have most of them working well after 7 or 8 years (with moderate use, of course). Great cells that keep 70-80% of their charge for months, even if their theoretical rating was much lower than the Energizer's (2000 mAh, iirc)

[@michaeltempsch5282]

Any chance that you'll take a look at the LiIon based, USB rechargeable, 9V batteries? Alkaline AA and AAA often come on offer around here, so I just stock up then (and convert what can be, electrically and fitment wise, to 18650's) , but the 9V ones are always, comparatively, expensive... and USB is so much more convenient/available everywhere, than another dedicated charger.

[@NeilVanceNeilVance]

Poundworld is creeping into Twopoundworld!

[@fredmorton1631]

Would it be possible to use the Joule Thief circuit to get a quartz clock to squeeze the last bit of juice out of a cell?

[@fredmorton1631]

@Krokozyabrik Cheers man. :)

[@joshg3468]

Hey Clive, what sort of AA cell would you recommend for outdoor use, where the temps range from -26C to 46C (and also it's quite humid)? Would it be beneficial to tape off the ends and conformal coat a battery, so far as water ingress goes?

[@bigclivedotcom]

+Josh G That's quite an extreme range. It would require a specialist cell. Check the lithium non rechargeable specs.

[@cfinlay6428]

I've got eight of the Poundland fusion Max AA and use them in my large Sunpak flashguns, four at a time. They provide plenty of power and even on full power the ready lamp is glowing amber a second or so after very many firings. Also as they are not super high capacity they only take about an hour to charge (at one amp charging). For £1 a set they're very good value for money, oh and yes they do hold they're charge for a very long time!

[@bakonfreek]

Poundworld cells also have the colors on "powercell" swapped between the good and crap cells.

[@phonotical]

I'm not sure your clock adaptation might work under some circumstances, I know if you put too much voltage into them they can run backwards, or even actually slow down

[@benhoward3049]

it's purely for niMh AA cells

[@bluerizlagirl]

phonotical The clock movement is powered by a separate disposable battery. The battery under test is *only* powering the electromagnet that holds the reed switch closed. The reed switch interrupts the battery feed to the clock, so the clock stops when the battery no longer has enough oomph to operate it.

[@Herby-1620]

I suspect that the lower capacity ones are actually 'AAA' cells in a new case. It might be instructive to take a hacksaw to them to see what is inside. Many of the D size cells (those not 4000 mAh) were actually C cells inside of a bunch of cardboard. You could tell them apart from their weight. Oh, yes in the USA we have all sorts of 'dollar' type stores.

[@uK8cvPAq]

How do you determine when its time to throw a cell out? Particularly those you get in solar garden lights, I've taken the cells out for testing and after a full charge and being left to sit for a few days a couple of them dropped below 1.2v by themselves whilst others had dropped to around the 1.25v mark.

[@bigclivedotcom]

Most NiMh cells will drop down to around 1.2V after a full charge. The most common failure of the cells in solar lights is to lose capacity and the ability to supply current. Keeping in mind that these cells are getting 365 charge/discharge cycles a year and being exposed to very high temperatures in the summer, it's a good idea to routinely replace them every two or three years.

[@stathyena]

@bigclivedotcom Is the bounce test for batteries (which I would assume goes off of weight, lighter = bouncier) and actual way of measuring whether a batteries dead or not?

[@bigclivedotcom]

The bounce test does actually work.

[@Slicerwizard]

It has nothing to do with weight. A dead alkaline weighs the same as a new one. It's the hardness of the innards that changes.

[@shazib21]

Reed switches - also used in home security (door and window contacts)

[@MaskedGEEK]

Would you ever test Recycko cells? I've bought mayn of them on Amazon both in AA and AAA flavour and have seen them being longer lasting than lower quality cells. I'm interested in knowing if they have the capacity stated. My recent purchase was 2 x 4 packs of AAA cells rated at 950mAh.

[@supernova1976]

Be carful taking that clock out and about with you 😀

[@GrrMeister]

4:30 *I use these in my household (wired Landline) Phones and find ok unless you want to make a call over 2 hours and in which case batteries might struggle a little. I'm ok with that but the wife often complains - say no more.*

[@THEDRAGONBOOSTER8]

Can you please do a review on AA 14500 Li_ion batteries..?

[@richardkaz2336]

Ive found that cheap rechargeable NiMH batteries last about 10-15 recharges and named brand NiMH last for a bout 30-40 charges but none of them have the mAHr rating stated.

[@rupert274]

Richard Kaz I've never owned rechargeable batteries that did not state their capacity. You're doing something wrong if they only lasts up to 40 charges.

[@milesbancroft]

It would be interesting to see how they compare to the Lidl Tronic AA rechargeables.

[@zagaberoo]

That clock setup makes me so happy. EDIT: oh wow blowing my mind with the 'battery of cells' knowledge too.

[@CrashUK28]

Any plan to test the new poundland Kodak AA Rechargeable

[@bigclivedotcom]

I've got some here. I've not given them a proper test though.

[@johnclavis]

I don't know what phone you're using, but that image is terrific. You're terrific!

[@bigclivedotcom]

Moto G4 with Open camera.

[@jongmassey]

Good bot

[@amojak]

hey clive, how about lobbing some 7dayshop nimh's through your Amp-o-meter ? They do high capacity cells at a good price and it would be neat to see if they stack up to the claims :) I could send some aaa's and AA's if required as i bought a load for projects here.

[@colinedward3147]

Is there a way of sending you stuff to balls about with? I may have something of interest or at least I'd be interested in the outcome.

[@colinedward3147]

+John Howard had a mooch might be me or my coal powered phone but can't find any info on the website.

[@MrBrymstond]

+bigclivedotcom Do you have a harbor freight store near by? They have AA batteries rated up to 2400mAh

[@Choconagitana]

You need to make a really nice version of that clock/discharge meter, that would be a neat sort of thing to have around I think for alot of people.

[@diymaster1121]

can you make simple seald lead acid battery charger

[@Zapp3012]

I bought 4 of the Poundworld 800mAh ones. They tested all over the place. 360, 730, 880 and 920.

[@bigclivedotcom]

+Zapp3012 Many fast chargers terminate way too early with low capacity cells.

[@rupert274]

And if you pair them up you may end up with reversing the polarity of the weakest.

[@ElTelBaby]

... Come on Clive, spill the beans how many turns did you put round the reed switch ...

[@ElTelBaby]

... As U can C I'm playing catch up with your Video's ... ... ... I can B contacted at ... ... ... i.a.man.living.human [AT] gmail [ . ] com ...

[@JETJOOBOY]

Very Liking the PoundLand ones... Lasted for ages straight out the packet!

[@davidwebb2318]

Any reason why you travel witha set of electronic scales?!

[@bigclivedotcom]

That location had kitchen scales.

[@InTheRedCornerBFC]

Great videos ,I love poundland stuff !!! Hope one day my KZbin channels will take off like yours . Keep up the good work clive !!

[@Mentorcase]

Gotta wonder why you travel with scales?

[@bigclivedotcom]

+Mentorcase I don't. That was at a location that had kitchen scales.

[@SnickersTS]

I prefer the older Poundworld Powercell 1000mAh because they did last a lot longer and keep their charge than the Fusiomax 800mAh. However, I use neither, because I invested in Energizer recharge 2,000mAh, £6 pack of 4 and they are fantastic, worth the money.

[@The411]

whats the finish voltage or are you running them totally flat?

[@bigclivedotcom]

As soon as the voltage tails off below about 1V at the end of discharge the clock stops.

[@102819921]

you keep talking about poundland and poundworld. is that a UK store? like the dollar store in the us?

[@bigclivedotcom]

Yes it is. Our equivalent to a dollar store is a pound shop.

[@VictorGarciaR]

I have a Ni-MH charger that charges cells at *more than 3 amps* Is this normal? Should I use it?

[@bigclivedotcom]

You get turbo chargers that do charge at super high currents, usually using a fan to cool the cells. It's better to charge them slowly though as it will result in a fuller charge and much longer useful life.

[@VictorGarciaR]

bigclivedotcom Thats interesting. It does have a small fan that sounds like a jet fighter, I though it was to cool itself as it is pushing more than 12A (you can charge 4 cells at a time)

[@Slicerwizard]

Those 15 minute chargers kill cells. Major capacity loss will be evident after a year or so.

[@Starchface]

My chargers (Eneloop and Sony ones that hang off the socket) take about 8 hours or so to charge. It is possible that there is a dependence on how many cells are being charged. The Sony ones will take one or two AA or A cell, and the Eneloop either two or four cells. I assume the Eneloop chargers are charging groups of two cells in series, which is not great from a balancing perspective. I therefore prefer the Sony ones, but I think further investigation is required. In any case I am fine with 8ish hours.

[@zh84]

Why are the capacities of most small cells multiples of 1.5V? I first noticed this as a boy when the Lego motors and lights all ran on 4.5V battery boxes.

[@thedetlef97]

The chemistry inside them generates about 1.5V. Also if you open them you'll often find smaller 1.5V cells. kzbin.info/www/bejne/mWqteJmlgd2JedE

[@ceeboneee5632]

zh84 Some 9v batteries actually contain 6 AAAA batteries! Others contain 6 1.5v cells made just for that purpose. (As shown in Lucas's link) The battery boxes you used probably contained 3 1.5v cells. 😁

[@JasperJanssen]

Connor Joint 9V batteries cannot hold six AAA, if they've got cylindrical cells inside they have AAAA.

[@ceeboneee5632]

Jasper Janssen Well spotted, I think I just mistyped that. 😁

[@krashd]

Aye, big cells often just contain groups of smaller cells and so whatever their output will be multiples of what the small cells are. Even Tesla cars run on cells similar in size to an AA battery, but there are thousands of them.

[@blattferenc9647]

Why not use your microprocessor controlled charger/discharger?

[@bigclivedotcom]

Didn't have it at that location.

[@blattferenc9647]

bigclivedotcom Thanks for the reply

[@NiHaoMike64]

Could at least some low capacity NiMH cells actually be NiCd cells remarked to evade RoHS?

[@longrunner258]

RoHS doesn't apply to battery chemistry, though.

[@waldsteiger]

got some cheap 2.4ah ready-to-use nimh from a discounter and was surprised by power and capacity. tronic eco. 27.7g. the springy contacts in the cell holder dont spring no more...

[@BerndFelsche]

Did those cells have the same state of charge when you weighed them? 😋

[@Starchface]

That's a good point. As everyone knows they get heavier as the charge increases. Electrons have weight. Also one has to account for ambient temperature because obviously hotter cells are heavier than the far denser cold ones. I literally cannot believe that you're the only one who thought of this.

[@westinthewest]

Surely the cold dense ones would be heavier. Also if the ambient temperature is cold, the air will be more dense and it would press on the scales so adding a few more grams to the reading.

[@Steven.Cartwright]

Do poundland sell battery chargers ? Or which do you recommend for these batteries? Thanks

[@bigclivedotcom]

Poundland do occasionally sell chargers, but if getting serious about using NiMh cells then I recommend a good quality professional charger that gives charging current options and capacity data.

[@matthewday7565]

7dayshop have a reasonable choice - or if they still have any in stock, Poundstretcher used to have Hyundai chargers, not bad at half price, and actually fussy enough to reject weak cells - no capacity monitoring though

[@smileypete4625]

For charging the odd battery (eg. for a mouse) the Liitokala Li 100 single slot charger, currently £3 at gearbest, is hard to beat. They also do the dual slot Littokala Li 202 for £4.50.

[@benbradbury3665]

Could you do this with disposable Lidil, Aldi, etc cells? Would be awesome. Sure the Lidil ones are a con.

[@HuntersMoon78]

I've been using Poundland's Fusiomax batteries for a while, pretty good batteries

[@drakethedragon457]

Keep in mind that fusionmax Ni-mh batteries are quite good for long time low power use whereas powercell batteries are a lot worse don't last long even in low power devices

[@jaylittleton1]

Just a thought here. A fully charged battery has more electrons in it than a discharged one. So what is the combined weight of 500 mAh worth of electrons, for instance? Again, just a thought,,,,,,,,, and reading it back indicates I'm due my medicines.

[@ElmerFuddGun]

No, the number of electrons does not change with the charge level. I'm sure you can find some info on Wikipedia to show how batteries (cells) work.

[@jaylittleton1]

Sorry, forgot to select Ironic Font. T'was meant in jest, as if to imply that a fully charged battery will weigh more than a dead one.

[@johnpossum556]

You belong on Dave's channel since that is one of his goto standing jokes.

[@ElmerFuddGun]

Jay Littleton - Sorry I should have realized that you were joking! Not all of Clive's subs are really into electronics and I just assumed that for you. Next time add a ;-) winky for us slow folks that sometimes miss the jokes!

[@FerralVideo]

NiMHs have the added advantage over alkalines of having lower internal resistance, at least when newer. They perform significantly better in my drone transmitter than alkalines, for example. Flying my Hubsan, a set of alkalines will last about three to five ten-minute flights before entering "limp home" mode. A new set of NiMHs will last long enough that I lose count of how many flights I've had. Even aging NiMHs will outperform the alkalines.

[@hrnekbezucha]

That clock made me laugh so much. Now I'm kinda curious about the transistor discharge circuit.

[@DasGrinch]

But isn't a single cell already a battery of low voltage cells stacked to give you the 1.5V?

[@rupert274]

Das Grinch No.

[@Seegalgalguntijak]

800mAh is around the capacity that good AAA cells have. I'd expect double or triple from AAs. Even Eneloops with their low self discharge, I've just charged one up, and my (admittedly cheap and potentially crappy) charger showed me it pumped 2.3Ah into the thing.

[@fiazshah3838]

You have to do a comparison with the lidle tronic batterys. Great video BTW

[@pyotrleflegin7255]

Big Clive -- the ultimate gadgeteer! Marvellous video -- thank you very much ;) !