Yes, you can overcharge golf cart batteries. Most golf carts use lead-acid deep-cycle cells, and holding them above the correct float voltage for hours causes gassing, water loss, and plate damage. The single spec that matters most is float voltage, and the first thing to check is the battery pack label and the charger voltage…
Short verdict: you can only use car batteries in a golf cart as a temporary emergency fix, because the pack voltage and usable amp-hour capacity are the specs that matter most. A common mistake is trusting CCA (cold-cranking amps) instead of Ah and depth-of-discharge. First check the cart voltage label or the charger output rating….
A single weak 6V battery in a 48V golf cart pack reduces pack voltage by 6V, about 12.5 percent, and often causes slow acceleration or no-starts. A cheap voltmeter will find that weak cell fast. The most common mistake is testing while the charger is attached, so set your meter to DC volts first. How…
Open-circuit voltage can be misleading; a battery can read 12.6V and still collapse under load. The spec that matters most when load testing is the battery’s rated voltage and amp-hour (Ah) capacity, and the common mistake is trusting resting voltage alone. First check the battery label for voltage and Ah, then set your load tester…