Fork- Lift Battey Equaliztion Charge Amps.
I am seriously considering a 24 volt battery bank made up of two 12 volt 500 pound folk lift batteries. (I would use two because moving two 500 lb. batteries sure beats trying to move one 1000 lb. battery.) One of the advantages I see is the ability to discharge a fork-lift battery 80% without damage which is how they are routinely managed by fork-lift battery chargers. That would provide a lot more usable amp hours than a traditional deep cycle multi-battery bank of the same amp-hour size. One issue however, is that some say that you will need the ability feed 40 amps into these big batteries for the required monthly equalization charge, which AC powered fork-lift battery chargers easily accomplish. Most home PV system charge controllers cannot push 40 amps. However, others say that it is not a matter of amps, but a matter of time. In other words, you may not be able to provide 8 hours of 40 amp charging like a AC fork-lift charger can, but you can equalize the massive 2 volt cells by using less amps over a much longer charge time. Any thoughts or experience with this? Thanks!