NiMH Battery Charge Time Calculator
Estimated NiMH Battery Charging Time Table
| Battery Capacity (mAh) | Charger Output (mA) | Estimated Charging Time (Hours) |
|---|---|---|
| 1000 mAh | 200 mA | 7 hours |
| 1000 mAh | 500 mA | 2.8 hours |
| 1500 mAh | 200 mA | 10.5 hours |
| 1500 mAh | 500 mA | 4.2 hours |
| 2000 mAh | 200 mA | 14 hours |
| 2000 mAh | 500 mA | 5.6 hours |
| 2500 mAh | 200 mA | 17.5 hours |
| 2500 mAh | 500 mA | 7 hours |
| 3000 mAh | 200 mA | 21 hours |
| 3000 mAh | 500 mA | 8.4 hours |
Key Considerations:
- Battery Capacity (mAh): The higher the capacity, the longer it takes to charge.
- Charger Output (mA): Higher output current means faster charging. Always use a charger rated for your battery's voltage and capacity.
- Inefficiency Multiplier (1.4): Due to heat loss and other inefficiencies, NiMH batteries typically require about 40% more energy than their stated capacity to fully charge.
You can use this table as a rough guide to estimate the charging time for different combinations of battery capacities and charger outputs.