How to boost charge AGM batteries in storage?
The manual for my Lifeline 100 Amp Hour Deep Cycle AGM 12 volt batteries says this: "While in storage, batteries should be boost charged every 90 days or when open circuit voltage drops to 12.5 vol...
Forum Discussion
Using kWh measurement, recharging at less than 20% A/H capacity from 50% level of charge progressively deteriorates the final AH storage capacity of the Lifeline. Like any other electrochemical reaction, the effect is time reactionary. The longer the accumulator stays discharged and the slower the recharge x cumulative number the greater the storage degradation. In effect - my stored 31 would be affected more by slow recharge than a similar unit discharged for a day or week.
Weekly application of temp compensated 14.4 volts constant for 2 hours each would approach ideal numbers. Temp compensation would be important.
But for my unit I have decided that 8 hours at 14.4 voltage saturated (constant voltage) would be ideal. The battery may start out at 80 amperes acceptance. Such high amperage in excess of 20.0 (It's a 100 amp hour 31) is not necessary.
Any arguments against this protocol would have to contain explanation of its service life and ultimate low loss of capacity, please.
Weekly application of temp compensated 14.4 volts constant for 2 hours each would approach ideal numbers. Temp compensation would be important.
But for my unit I have decided that 8 hours at 14.4 voltage saturated (constant voltage) would be ideal. The battery may start out at 80 amperes acceptance. Such high amperage in excess of 20.0 (It's a 100 amp hour 31) is not necessary.
Any arguments against this protocol would have to contain explanation of its service life and ultimate low loss of capacity, please.
