Electric battery capacities are measured in mAh. When you plan to bring a battery into an airplane, its size is usually restricted based on Wh.
mAh → Wh
| mAh | Wh |
|---|---|
| 3,000mAh | 11.0Wh |
| 5,000mAh | 18.5Wh |
| 10,000mAh | 37.0Wh |
| 15,000mAh | 55.5Wh |
| 20,000mAh | 74.0Wh |
Wh → mAh
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