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Reliable batteries for the T20


Davyo
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After deciding to order a decent charger for the T20,and binning the ones that came with the T20's.I now need quality batteries (the ultrafires are pants & 5 died tonight so bad to pack up and head home at 10pm )any ideas?I have heard that the Panasonics are good.

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I have dozens from old laptop batteries that cost me nothing.

 

Most of them are top quality cells because laptop makers would not want the bad reputation of battery warranty issues. There is a lot of scaremongering about unprotected cells around the tinternet - but that apparently only applies if you charge multiples in series without a balancing charger.

 

I always remove them from any device to charge them and have used them for probably thousands of hours in total over the last couple of years without issue.

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Dave, I know your heart is on the right place and you're only trying to save members money by recommending unprotected cells, but you should really stop doing so, one day this will bite someone in the ****.

 

If you don't understand why lithium cells are protected, do some research, you don't want to be around one when it goes tonto due to deep discharge or shorting.

 

It really is bad advice and I mean that in the nicest way possible.

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Does anyone know where you can get the led from as mine has gone really dull not bright at all so thinking a replacement is needed .

When they go dull its the driver I think,this is the thing with the T20, its a lottery when you buy,I should of stuck with the NM800,the T20 is cheap to buy for a reason.Going to go back to the NM800,I want reliability in the field,driving 25ml to my perm and a T20 not performing or batteries/pills or drivers failing is not good.

Edited by Davyo
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I have dozens from old laptop batteries that cost me nothing.

 

Most of them are top quality cells because laptop makers would not want the bad reputation of battery warranty issues. There is a lot of scaremongering about unprotected cells around the tinternet - but that apparently only applies if you charge multiples in series without a balancing charger.

 

I always remove them from any device to charge them and have used them for probably thousands of hours in total over the last couple of years without issue.

i see a post like this a while ago so looked for some laptop batteries,

mungolee off pw had some so went round his to pick them up 2 miles from mine,

i put them in compartment in car between 2 front seats by the time i got home the wife commented on the strange smell in the car then noticed smoke coming from the batteries i picked them up to get them out of car and they were red hot,

i had to literally flick them out of car,

don't know what happened whether + and - touched or what but i shall stick to protected lithium batteries from now,

they could quite easily of done that in my lamping bag in the house when nobody was about who know's what could of happened then

 

colin

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Exactly, or they do it in a drawer while your asleep, or they get left in the car. Those laptop cells are contained in an outer with the protection circuit as a whole unit, they're not meant to be prised apart and used separately.

 

But hey, save yourself a tenner, it's worth the risk.

Edited by mick miller
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Try ludicrous-lumens.co.uk

cheers will have a look .

When they go dull its the driver I think,this is the thing with the T20, its a lottery when you buy,I should of stuck with the NM800,the T20 is cheap to buy for a reason.Going to go back to the NM800,I want reliability in the field,driving 25ml to my perm and a T20 not performing or batteries/pills or drivers failing is not good.

 

whats the driver ?

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Just ordered 2x torchy 18650 2600mAh,£10.49,got the nitcore i2 for £12.95 with a car adapter thrown in.Might get these T20'S performing better.

Davyo, where did you buy the Torchy battery's from because I can't see where to buy them from on: torchythebatteryboy.com !

 

Regards

 

Matt

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Point taken about unprotected cells - though I have to wonder why they waited till they were in a car before shorting out for no reason and would imagine a coin or something did the dirty deed.

 

The issues are supposed to be when re-charging them if deep discharged. Doing them separately removes the risk (AS FAR AS I HAVE READ)

 

I don't profess to be an expert. I have had no issues when using them to test up to 20 torches at a time for over 90 minutes - and run them till my NV rigs stop working.

 

Because of the rumours I mostly charge them in the conservatory rather than indoors but I genuinely believe that separate charging removes the risk.

 

I use chargers with separate charging circuits for each cell - this new one seems even better than the ones I use:

http://www.ebay.co.uk/itm/Genuine-XTAR-MC2-Battery-Charger-18650-18500-18350-14500-LiMn-IMR-Li-ion-USB-UK-/360993783779?pt=UK_Sound_Vision_Battery_Chargers&hash=item540ce7ffe3

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Exactly, or they do it in a drawer while your asleep, or they get left in the car. Those laptop cells are contained in an outer with the protection circuit as a whole unit, they're not meant to be prised apart and used separately.

But hey, save yourself a tenner, it's worth the risk.

Been watching youtube about these batteries,worring stuff.

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