AW LifePO4 Bad from Chargeing ?

[rhsmitty]

Oh wise battery wizards. I have 2 AW LifePO4's 3v that have never been used on a PV. I had them on a 3v charger for quite awhile. At some time the charger was unplugged while batteries still in.

The oterh day I tried to use them in a PV and I got nothing so I figured they discharged. I put them on the charger and the light never turned green after a very long period.

I pulled them and both were warm but one was very hot. I tried charging one at a time and they were just acting strange. One of them, when I put in the charger, the LED didn't turn to red, it went out ????

I checked them with a volt meter. One was 3.5v and one was over 4.

Are theses bad now ? Did leaving them on the charger kill them. I kinda of leary to use them now.

Charger = Tenergy Li-on RCR123a Charger Model PH-123a-3.0A

Did LifePo4's require a special charger ?

 

[Dudeman]

I could be wrong here but..

The AW LiFePO4's are 3.2 volt batteries and require a 3v/3.2v charger.

The Tenergy Li-Ion charger is a 3.7v charger and puts out something like 4.5v to the battery. Tenergy's are regulated down from a 3.7v battery to 3v.

That charger very well could have messed up the batteries.

 

[rhsmitty]

This was supposed to a 3v charger according to the vendor. IT SEZ rcr123A Charger, Are RCR123A 3v or either ?

I did notice on the back it sez otput 4.5v DC. i asked the vendor what charger I needed and I was told this one.

Will any 3v charger work for 3V LifePO4 or 3V Li-on ?

 

[Dudeman]

Well it IS a charger for the 3v Tenergy Li-Ions, but way too high a charge rate I beleive.

There are also 3v Tenergy LiFePO4 batteries out there that have an identical looking charger but is made for the LiFePO4's.

I'm not sure if you should even use that with the AW's.