Connecting a second 12VDC battery
How is the second battery electrically connected? Just paralleled? Do you add a disconnect for each for quicker charging one at a time? Thinking another battery would be better for boondocking.
Forum Discussion
BFL13 wrote:
Use the diagram shown above. Note that you get more than twice the time at the same amps draw by having that second battery used together. So don't use them one at a time. (Peukert works for you!)
OTOH if the OP's original battery has been in use for awhile but he still wants the benefit of having two batteries available for dry camping then he should use them separately to avoid the old original from degrading the newly purchased battery. He can easily accomplish this by wiring the batteries with a dual battery disconnect switch such as the Blue Sea m-Series 6007.
