RoyB wrote:
Be sure to keep a close eye on your batteries and not let them get over charged and boil out the fluids... leaving 13.6 VDC and higher DC Voltages on your batteries for long periods of time can do this...
He said maybe 5 days. Not a "long time" in this context.
BUT....most smart chargers are very low capacity and might just barely keep up with the 12 V load without really charging the batteries much.
Since it is not good to leave the batteries in a low state of charge for a "long time", he should not leave this temporary fix in place very long.