arhi
Member
I'm sure I saw gzilion ways on how to (partially) recover the lead-acid battery, but cannot find anything for over 2 hours ?! Either I should go to sleep or something is wrong with the google as I get gzilion of totally useless pages as result...
anyhow a good pointer to article / some explanation will be appreciated ...
I have few (4 to be axact) Panasonic LC-R129CH1 (12V, 9Ah/20HR) batteries.
They are "sealed lead-acid batteries" non-spillable .. blah blah ..
They are from my UPS, and they are dead .. (only cca 5V on the leads) now the questions are:
1. can I try to charge them using slow car battery charger (takes 24H to charge small car battery)?
2. is there a way I can rejuvinate them (pointer to the circuit would be nice, but pointer to the theory would also be appreciated and then I will make/share circuit)
The batt is "sealed" so any "bubbling" has nowhere to go hence booooom if something goes wrong (not big of a problem as I can do it outside but I would like to avoid that if possible)
The rating on the battery sticker:
Cycle use: 14.5-14.9V (25C)
Initial current: less then 3.6A
Standby use: 13.6-13.8 (25C)
Any help on how to rejuvenate/charge is welcome.
p.s. I do not plan to put them back into UPS (I already ordered new ones for that), but I would prefer to use them then to throw them away (Pb is not that "recyclable" in this country)
anyhow a good pointer to article / some explanation will be appreciated ...
I have few (4 to be axact) Panasonic LC-R129CH1 (12V, 9Ah/20HR) batteries.
They are "sealed lead-acid batteries" non-spillable .. blah blah ..
They are from my UPS, and they are dead .. (only cca 5V on the leads) now the questions are:
1. can I try to charge them using slow car battery charger (takes 24H to charge small car battery)?
2. is there a way I can rejuvinate them (pointer to the circuit would be nice, but pointer to the theory would also be appreciated and then I will make/share circuit)
The batt is "sealed" so any "bubbling" has nowhere to go hence booooom if something goes wrong (not big of a problem as I can do it outside but I would like to avoid that if possible)
The rating on the battery sticker:
Cycle use: 14.5-14.9V (25C)
Initial current: less then 3.6A
Standby use: 13.6-13.8 (25C)
Any help on how to rejuvenate/charge is welcome.
p.s. I do not plan to put them back into UPS (I already ordered new ones for that), but I would prefer to use them then to throw them away (Pb is not that "recyclable" in this country)