Golf Cart Battery Won't Hold a Charge? Causes and Fixes
If your electric cart dies halfway down the road, or sags on hills, the batteries are the first place I look.
I'm a Certified EZGO Technician with 20+ years of experience. A cart that will not hold a charge is one of the most common calls I get, and the answer is not always "buy new batteries."
Why batteries lose their charge
- Age. Lead-acid golf cart batteries wear out. Depending on use and care, many sets last several years, but there is no single number, and a tired set does not recover.
- Sitting discharged. Batteries left flat for weeks, especially over winter, can be permanently damaged.
- Low water. Flooded batteries need distilled water. If the plates are exposed, capacity drops fast.
- Dirty or corroded terminals. Corrosion adds resistance, so the cart acts weak even when the batteries are fine.
- One bad battery. A single weak battery drags down the whole pack, and replacing only that one often does not fix it.
It might be the charger
A charger that does not finish its cycle can leave a set undercharged every time you plug in, and the batteries get blamed. Before I recommend replacement, I test the charger too. A failing charger can also ruin a good set, so this is worth checking.
How I test
I check each battery's voltage and state, inspect the cables and terminals, and clean what needs cleaning. If the set is worn out, I tell you plainly and quote the replacement. If it just needs cleaning, water or a better charger, I tell you that instead. I do this in your driveway.
Signs the set is nearly done
Shorter range than last season, a cart that slows down on hills or when you press the pedal hard, and a charger that finishes much faster than it used to are all signs of a tired set. If the cart works fine on a fresh charge for a short drive and then fades, the batteries have lost capacity and cleaning alone will not bring it back.
Simple habits that help
- Charge after use rather than letting the cart sit low.
- Keep terminals clean and tight.
- Check water levels on flooded batteries regularly.
- Do not store the cart for the winter on a flat set.
What it costs, and how to book
Diagnostic and labor is $100 an hour, a Tune-Up is $150 flat with the oil change included, and the trip fee depends on distance from Warsaw. I text you the trip fee before I come out. Request service or text me at 574-221-5501 and tell me what the cart is doing.
My pricing: Tune-Up $150 flat (oil change included) · Diagnostic and labor $100/hr · Trip fee quoted by text before I come out.
More common problems
Golf cart won't move · Tune-up cost in Indiana · Golf cart clicking noise · Golf cart slow or no power · Golf cart won't charge