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sivankls said:My 3 year old 100AH battery used for a 500 Watt inverter will not take charge beyond 13.2 Volts...used a high current pulse charger still no luck !! the floating voltage is around 12 volts...no internal shorts...any help will be appreciated !!
Nigel Goodwin said:Buy a new battery! - it's 3 years old, it's knackered!.
sivankls said:The charger is a Constant voltage current limited charger...the open circuit charger output volts is 14.0..the current is limited to 6 Amps..but falls off to nil when the battery charges to 14.Volts.With this charger, the battery gets to 13.2 volts..then I tried a pulse charger, the battery gets slightly hot and the acid bubbles..but still the battery volts is 13.2Volts..
sivankls said:What if its lower or higher...Should i change the acid or clean the cells and again add the acid ?
sivankls said:A local auto electrical shop had it checked (SG) they say its almost normal...They simulated cold cranking with a device drawing very high current, the battery dropped to 8.5 volts but observed small bubbles (gassing ?)....What they say is its almost end of life..but I still hope it can be recovered by high current pulses!!!
sivankls said:The no load battery volts is 12.45....