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| troubleshooting:no_alarm:low_battery_capacity [2020/09/14 04:44] – user | troubleshooting:no_alarm:low_battery_capacity [2025/01/06 03:07] (current) – user | ||
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| ====== Low battery capacity ====== | ====== Low battery capacity ====== | ||
| - | Lead acid batteries have a limited lifespan and loose capacity over time. Not charging correctly, repeatedly deep discharging, | + | Lead acid batteries have a limited lifespan and loose capacity over time. Not charging correctly, repeatedly deep discharging, |
| - | + | ||
| - | Fully charged | + | |
| [[: | [[: | ||
| + | |||
| + | ===== Troubleshooting ===== | ||
| + | |||
| + | * Check battery voltage for each battery separately when fully charged. Fully charged the total open circuit voltage should be above 12.6 V (2.1 V per cell). | ||
| + | * A fully charged battery voltage around 10 V indicates a dead cell and battery needs replacement | ||
| + | * Open circuit voltage is measured correctly when robot has been left disconnected from charger and powered of for at least 1 hour | ||
| + | * Check condition of the battery poles and connectors. They should be kept clean for good electrical conduction. | ||
| + | * Check that the 3 battery cables and their terminals are not damaged | ||
| + | * Check condition of charging connectors, poor electrical conduction affects charging | ||
| + | * Check the battery [[: | ||