Time to replace batteries. How?
I have a four battery bank that is charged by a Xantrex PS2000 pure sine wave inverter charger. I have 4 12v large deep cycle batteries bought at Sam's Club. I think you call them 31 size (not sure bu...
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Shut down all power, unplug the RV. If you have solar pull the fuse/turn off the breaker. Take good photos of the wiring and if at all possible label the wires. Remove the ground (-) to the coach first then the other negative wires off the bank. At that point you should be safe. Clean all the cable ends with a wire brush. Reverse the process to install the new batteries and spray the terminals with anti corrosion treatment (found at auto parts stores). The last connection is the main negative/ground wire to the RV.
