How To Test Boat Battery Charger. Direct current means that the electricity runs straight from. You need enough capacity to run the continuous loads on your battery system like DC refrigeration frequently the biggest user of battery power and lights plus enough power to float-charge your batteries.
Insert the red probe into the terminal on the face of the multimeter for volts ohms and diode testing marked with the letter V and the Greek letter omega the symbol for ohms. Unhook the leads and plug in charger. How to Test your Boat Battery Voltage with a Multimeter.
I would check the batteries out first.
Is your boat battery always going dead. This charger lost its voltage regulation capability and ruined a very expensive bank of AGM batteries while the vessel was in storage during the off-season. All three batteries never moved the needle on the charger. Refer to the manufacturers owners manual.
