over discharged batteries. ICR

[ChillerVapes]

Hi, I have got a set of 3 samsung icr18650-22e batteries which I recovered from my sisters old laptop.

The batteries are fine (laptop didn't have a battery fault) but, because the laptop had been stood for around a year and a half, they only have a tiny bit of power in them.
They can JUST turn my VTR on but the leds are dim!

I have also just received my Xtar wp2 II charger today. I was wondering if it would be best to slow charge them or just go for the normal setting?

Reading about the batteries, they can be charged right even at 2amp (max) but they consider 1amp to be normal charging current.

They are meant to be 2,200 mah.

[Ripshod]

If they measure 2.5V or lower then I'd say ditch them m8. 2.5 is an absolute minimum with these batteries.

[Steve (VapeStorm)]

Really not worth running the risk using old laptop batteries. Good batteries arent expensive to buy!

[ChillerVapes]

May 22, 2014 10:09:16 GMT Ripshod said:

If they measure 2.5V or lower then I'd say ditch them m8. 2.5 is an absolute minimum with these batteries.

I wish I could test them but I don't have a multi meter.

Thing is, I have my old trusty panni which is over a year old... actually getting on to be 2 years old soon and it still out preforms my less than a month old efest. Surely batteries which have been looked after except for prolonged storage drain can't be "that" bad?
I mean, the charger has some sort of refresh feature designed for batteries which are a little buggered, if they were so dangerous then why bother adding that type of feature to a charger?

Heck, before my ecig days, used to put laptop battery packs in the freezer for 24 hours so they would start working again. (When the laptop can't detect the battery).
fixed quite a few that way too.

[Ripshod]

It's totally up to you. If you want to test them I'd suggest setting the charger up on a concrete slab in the middle of the garden and stand well back.

As Steve (VapeStorm) pointed out, with the price of batteries these days do you really want to take a risk with your own personal safety?

Iirc freezing only worked with the old lithium-ion batteries.

[Steve (VapeStorm)]

Youll get a nice fireworks show if those icrs decide they dont like being charged. Stand well back and set up a camcorder

[ChillerVapes]

Well, had them on charge for over an hour now at 500mah. Checked the temp of them and they are just "warm" the charger itself is warmer than the batteries. I'll keep my eye on them.

I was hoping for a technical reply. I know one of the mod makers on here really knows batteries inside and out.

[DiscoDes]

To those that say don't use them, the question that you should ask yourself is :

"Would I plug a old laptop in that had been left unused for a year?"

I would.

[meeee]

I agree with Des, I would to.
I quite often recycle old laptop batteries, I have a stack of 18650 from old laptop batteries and have never had a problem yet. You do get the odd one which doesn't hold it charge but they go in the Bin.

[ausfost]

managed to salvage 5 18650s about 6 months ago, panasonics have worked fine though they are just now starting to lose power after a short period of use. just this morning fired an email off to my local PC repair shop to see if he has any old laptop batteries i can have.

[VapingBad]

You need a charger with a resuscitate feature like many of the XTars to bring them back to life, just monitor them closely and for the first few charge and use cycles.

[ChillerVapes]

May 22, 2014 13:08:30 GMT VapingBad said:

You need a charger with a resuscitate feature like many of the XTars to bring them back to life, just monitor them closely and for the first few charge and use cycles.

yeah, I got myself an XTAR WP2 II, this was its trial run.

seems to have charged them fine. The unit gets warmer than my old trust fire but it is smaller too.


Edit.

Just read that this charger has a build in under voltage lockout system. From what I understand, this stops the charger from charging a battery which is too flat. (Please correct me if I am wrong)

[DiscoDes]

May 22, 2014 15:52:41 GMT ChillerVapes said:

May 22, 2014 13:08:30 GMT VapingBad said:

You need a charger with a resuscitate feature like many of the XTars to bring them back to life, just monitor them closely and for the first few charge and use cycles.

yeah, I got myself an XTAR WP2 II, this was its trial run.

seems to have charged them fine. The unit gets warmer than my old trust fire but it is smaller too.


Edit.

Just read that this charger has a build in under voltage lockout system. From what I understand, this stops the charger from charging a battery which is too flat. (Please correct me if I am wrong)

Yes.

Read the 4th point under "features"

[VapingBad]

Couldn't read the pic in DiscoDes post so had to dig my copy out, it says:

WP2 II built-in battery over discharging activation function, it can repair varying degrees discharged battery and then charging automatically, it is your first choice safer and more reliable Li-ion battery charger.

So it does have the recovery feature.

[ChillerVapes]

Yeah, I'm actually really impressed with this charger.
All three batteries charged up fine. No over heating, noting. Just changed them like they were part of my rotation.
Using my 1st one today as a trial.
2200mah on my efest at 9.5w on a 2.2ohm dual coil head gives me about a days worth of charge.

The max discharge these batteries can handle is 4400mah (4.4amp)

Using the power and ohms given, can someone tell me the load on the battery please? (Still figuring out all the electrical maths) lol