We sell and instal both 12v and 6v batteries from Interstate Batteries. We stock full line of deep cycle 12v and 6v batteries and most common motohome starting batteries.
Most batteries become defective for two reasons, overcharging and under charging.
Undercharging is a result of batteries being repeatedly drawn down and not fully recharged between cycles. This causes calcium build up on the plates. Overcharging batteries results in severe water loss and plate corrosion.
Corrsion and build up on the plate decrease storage power and eventually a defective battery. We sell and instal watering systems to make it easier to keep the batteries full of fluid.
Standard equipment battery chargrs charge at one rate all the time and do not know if the battery is dead or fully charged. Most converter chargers provide a constant charge of about 13.5 volts, which is too high for fully charged batteries.High charging rates causes electrolyte is boiled off, thus resulting in a early death for the batteries. Also, if you have added batteries to your system, your stock battery charger probably is not big enough to handle the added demand.
We have a solution for this problem, we stock a full line of "smart chargers". We have multi-stage lower section replacements as well as stand alone chargers in 55, 75 and 100 amp charge rates. Multi-stage charging is a more sophisticated method that optimizes charging based on the battery state of charge. Typically there are three stages, called Bulk, Absorption and Float. Multi-stage charging helps in cases were the battery is fully depleated, as well in cases where the rv is plugged into 110v for extended periods of time.
There are many multi-stage RV battery charger options. Popular brands include Progressive Dynamics, Iota, and PowerMax. Among inverter-chargers, well-known brands include Magnum and Xantrex. All of these brands we sell and instal.