18650s $5 a pair?

benckie: I think I will also give a try with Manafonts _2400mAh_ Flames, just to see... :)

Besides, I have only one (Yes, a frigging one Flame2400) left in drawer, others are gone.

Not to hijack, but there seems to be a dearth of 14500s. What are the best batteries? I need unprotected 14500s.

My 18650 flames from Manafont have bee OK thus far.

Jerry

I have been very happy with these:

http://www.lighthound.com/AW-IMR-14500-LiMN-Rechargeable-Lithium-Battery_p_3644.html

Capable of high current draw and safer chemistry.

Thanks BetweenRides.

I should have said 10440 batteries, but thanks for the info. It is always to get a user's assessment of such stuff. I have not seen any Trustfire Flames in 10440.

Best regards.

Jerry

I'll be testing some soon.

Right now I just need 18650 unprotected (charger has inbuilt protect) for my cell charger (4P) to charge phone and tablet.

Folks here might be familiar with this cheap (but reliable, so far) charger.. from ebay with the 3 leds on the side.

Is Sanyo (pink/red ones) 2600mah the best bet? For 0.5mah discharge? Best bang/buck? Thanks!

How reliable is hke’s eBay side? I only ask because they have listed a trustfire 4 cell charger (tr-006?) And four 18650 cells for £31, I have not bought or tested these and am not recommending them, but if the seller is reputable they may be a good option?
Personally I trust BIG_F_D_D (torchy the battery boy) I’ve bought some lights from him that have been good, he has a return for full refund if unhappy policy (never had to test this, always been happy) and is based in Scotland. Good for us UK users, maybe not so good for you guys stateside. He tests and posts results of all his products and is a user himself.

What about these cells? They are cheap on ebay

Those look decent if the datasheet is to be believed. They have a fairly low capacity with only 2100 mah. Also depending on the light you may not be able to run them all the way down to 2.8 volts as they do. So I'd say go for it and as long as you are careful when charging and discharging they probably are safe. Good luck.

HiMax 2600's on Ebay for about $6 each.....

You mean this kind of box?

2600mAh Sanyo's are quite good for it, indeed, but I'd recommend using NCR18650A's instead due to lower minimum safe voltage, higher capacity & better safety apparently (due to NNP technology).

You can get 2900mAh ones for just $6.88/each or 3100mAh ones for $8.46/each (from FP)

What box is that? Link?

http://www.ebay.com/itm/5V-2-5A-Output-Mobile-Travel-Portable-Power-Supply-18650-Battery-USB-Charger-Box-/170841658048?pt=LH_DefaultDomain_0&hash=item27c6f4d2c0

Here you go. I haven't tested 2.5A claim (it might be overrated by manufacturer, like those "1800 lm" XM-L lights), but it does 1A (which is enough for any phone) just fine without any voltage drop.

Ive seen them and was interested if they would give at lest 2 amps ?

but brought the protected battery holders instead, they are protected but will only fit unprotected cells like the NCR18650A,s

1 x 1S4P

http://www.ebay.com/itm/1-x-1S4P-3-7V-18650-Holder-Case-Battery-w-Li-ion-PCM-Protection-Circuit-Module-/150817618580?pt=LH_DefaultDomain_0&hash=item231d6e3a94

1 x 4S1P

http://www.ebay.com/itm/1-x-4S1P-14-8V-18650-Holder-Case-Battery-w-Li-ion-PCM-Protection-Circuit-Module-/180883464154?pt=LH_DefaultDomain_0&hash=item2a1d7e9fda

You can get them in many different combinations, 500 mAh is good for a basic mobile (cell phone) 1 amp for smart phones like the iphone 4 and 2 amps for ipads.

But with those you still have to use some kind of 3.7V -> 5V boost converter.

That's the one, thanks man. Will check out those Pansonics, FP = FocalPrice? Can be hit and miss with them, I think DE is also stock those now too

Yep, FP = FocalPrice. That’s where I got mine and they seem to do very well (tested them individually in hobby charger, got similar results to Intl-Outdoors protected 3100mAh battery).

http://www.ebay.com.au/itm/5V-Mobile-Power-Supply-USB-Battery-Charger-18650-Box-2A-/260859409161?pt=AU_MobilePhoneAccessories&hash=item3cbc6eb309#ht_7411wt_1164

Apparently 95% efficient

4.2 volt is close enough for me.

I was not sure if he needed 5 volt or not, not sure on how the pack is rigged, bit hard to give advice, i just seen 4P that could be 4s1p 14.8v or 1s4P 3.7 volt or 2s2p 8.4 volt as one pack miscounted as a 4P, but it looks like he has the voltage and the protection sorted.

Just about any 18650 can give 0.5 amps in series 0.5 amps each or in parrallel 0.5 divided over how many cells your using or a 2s2p will give 8.4v but will double the run time over a normal 2p but will look like a 4p due to having 4 cells.

But if your charging ipads or iphones and want a couple of charges, i suggest gettign good 3100 mAh cells but since you only need 0.5 amp i assume your not so its all good

Since this thread went off coarse i thought ill help what i linked is more for testing or being used as a power supply what the batteries is charged at and what combination you brought is what voltage you will get.

I'm sure the batteries have already been order so it does not matter any more.

But it’s not close enough for your phone or whatever you want to charge (especially considering it’ll drop to under 4V in a few minutes), is it? :stuck_out_tongue: