18650s $5 a pair?

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:

2100mAh at 0,95A is 2h run time. For 2,75$ good deal But question is, if are these batteries realy new, or they are used.

Enyone already tried these LIR 18650?

Yes but no, really as a 1s2p 0.5 amp over two pany 3100 mAh's in parallel is bugger all, but like i said what i linked was more for testing and custom battery packs even charging with a hobby charger, i did not say it was for charging phones did i ?

Now since we are talking about charging phones, i use my car stereo in the family wagon to listen to music and charge our iphones at the same time plus the option of a cigarette lighter socket if tow phones has to be charge at once, good for camping but in our 4X4 i have to use the cigarette lighter socket's or a portable DVD player as the stereo is no iphone compatible its just an oldie as it gets full of sand, mud, dust and water.

At home i normally use 1 of 4 apple chargers we have, or my wifes clock radio iphone dock, or our surround sound system, or xbox or TV or my PC or my wifes laptop, or our blue ray player in the bed room or my daughters DVD player or the portable DVD player.

If I'm out side with mates or in the shed working on cars or what not i use my hobby chargers power supply with a couple of cigarette lighter sockets to charge iphones or ipads cause i normally leave the screen constantly on so i can skip songs and do stuff as i don't like shake to shuffle and i might be out there all day.

Now if i run out of options around the house of in our two cars and i have used all my 20 options to charge an apple product i do not stress i use one of these

MiMi - USB Rechargeable 2000mAh External Battery w/ Stand Feature for iPhone/iPod (Black)

MiMi - USB Rechargeable 2000mAh External Battery w/ Stand Feature for iPhone/iPod (White)

You can buy then to match the colour of your phones isn't that sweet.

Now iphone 4,s will charge from a 0.5 amp device. they like 1 amp as they are a bit hungry, but Ive noticed on some items that only give up to 0.5 amp like 10 inch note pads or net books, old laptops they time out while charging ipads they really need at lest 1 amp but are the most happy on 2 amps half.

Out of the 30 some thing usb ports in my house or cars half will charge at 1 amp and above and the ones i have made personally will do 8 amps each or up to 23 amps over 4 out lets if needed from 12/24 or 240 volt. So charging a phone is the least of my worries i prefer battery packs that are protected so i can test and blow stuff up that is not connected to some expensive electrical item hence my above links.

Interesting, I didn't know those plugin in iphone ext. batteries actually worked!Thanks for the tip

Hey thanks man,

Actually I already have quite a few Flames (from DX - apparently not so good anymore) & Himax, haven't ordered any more batteries yet (need more money, haha).

Benckie, I'm no expert (far from it) but I think that unit can only discharge at normal usb speeds, 500m

Thanks