AGM batteries, overcharging on long drives
I am new to AGM batteries and have done a lot of study prior to purchasing them as a replacement for my coach batteries. My charger has a specific algorithm for charging them when plugged into shore p...
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Like you, I start out with fully charged batteries (both house and chassis batteries) from being plugged in. Instead of a switch to turn off the charging voltage, I run the fridge off the inverter while driving. It keeps the voltage at the house batteries just below 14 volts during the drive. From memory, I think it is 13.9 volts which is a bit better I think than hitting them with 14.4 volts for hours when they are already fully charged.
If your fridge has a DC option then that might also keep the voltage at the house batteries at a more acceptable level.
If your fridge has a DC option then that might also keep the voltage at the house batteries at a more acceptable level.
