Do Golf Cart Batteries Need Watering?
If your golf cart uses flooded lead-acid batteries (which includes the Trojan T-105, T-875, and most OEM batteries in older Club Car, E-Z-GO, and Yamaha carts), then yes — they need regular watering. This is one of the most critical and most neglected maintenance tasks.
AGM and lithium batteries do NOT require watering — these chemistries are sealed.
Why Batteries Need Water
During charging, flooded lead-acid batteries undergo electrolysis — water in the electrolyte is broken down into hydrogen and oxygen gas and vented. Over time, the water level drops and the lead plates become exposed to air. Exposed plates sulfate and corrode permanently — the battery's capacity is reduced and never recovers.
How Often to Water
| Usage Level | Watering Frequency |
|---|---|
| Light (weekends only) | Every 4–6 weeks |
| Moderate (a few times a week) | Every 2–4 weeks |
| Heavy (daily driver, summer) | Every 1–2 weeks |
| Hot climate (>90°F average) | More frequent — check weekly |
How to Water Correctly
Connection to Voltage
Low water levels cause voltage irregularities during charging. A cell with exposed plates:
- Overheats and gasses excessively
- Shows abnormally high voltage during charging
- Shows low voltage under load
If one battery in your pack consistently shows odd voltage readings, check its water level first.
The Maintenance-Free Alternative
Switching to lithium eliminates watering entirely. A 48V lithium upgrade from TIGON includes installation of a sealed pack that never needs maintenance. Call 1-844-844-6638 or visit any TIGON location for pricing.