To start your new batteries off right I highly recommend, as a first step, to perform an equalization charge on them. Voltage readings and specific gravity measurements on new batteries are almost meaningless until they are equalized. Make sure the electrolyte is filled to specifications and equalize according to the manufacturers voltage and duration specifications. Doing them individually is preferable but not necessary. After they are equalized, let them sit for at least 24 hours before you take any voltage and specific gravity readings. The specific gravity readings for each battery from cell to cell should not vary by more than 0.030 points from high to low. Record these readings relative to each cell, they will be your baseline for future readings. The two most important things you can do in maintaining your batteries is to keep the electrolyte properly serviced and the tops of the batteries clean and dry. Surface discharge is the biggest parasitic drain to battery capacity.
2007 Newmar DSDP 4023
Discovery is seeing what everyone else has seen and thinking what no one else has thought.
If you want to see what man made go East; if you want to see what God made go West.