This links blow explains the works of the battery all the way through.
On our RVs the biggest and most needy part of our vehicles is our batteries.
The more we understand about them can make our trips more enjoyable.
The pd-91-9200 Intelli power charger/converters with the charge wizard (additional) takes allot out of battery maintenance About all ya have to do is check your water frequently and your battery corrosion. Your batteries will last longer and save ya money.
http://www.progressivedyn.com/battery_basics.html
http://www.progressivedyn.com/power_converters.html
I do not have any connection with this company. I have the 60 amp Intelli power charger/converter and when i would plug in my batteries would boil the water out causing a mess and corrosion. I'm gonna by the charge wizard myself, it only take 1 screw plug in the charge wizard and you set to go.
I hope this helps folks.