How To Test 48v Golf Cart Batteries. Even though you're using 48 volts you should still keep your lines short, keep the inverter close to the cart. We can test this by using a volt meter.
If your voltmeter remains at 0, then there is a problem somewhere else in the cart. Both of these methods are very accurate and provide accurate results. Go all the way to the last battery.
How to test golf cart batteries with a multimeter after fully charging the cart’s battery rack, use the multimeter (set it to 200v dc)across the posts of each individual battery.
This test is the same for 36v and 48v battery sets we do not need the charger on for this test. Bms protection of 48v golf cart batteries. If the batteries do not take a charge this is a good indication they need to be replaced. Most battery packs hold around 48 volts.