Convert Milliampere-hours to Elementary charge
Convert Milliampere-hours (mAh) to Elementary charge (e) instantly and accurately.
Conversion Formula
e = mAh × 2.246943267e+19
About Milliampere-hours
The milliampere-hour (mAh) equals exactly 3.6 C and is the universal capacity unit for portable-electronics batteries. Smartphone batteries range from 3 000-5 000 mAh; AA alkaline cells deliver ≈2 500 mAh; small lithium coin cells for RTC modules are rated 35-225 mAh. 1 mAh = 3.6 C = 10⁻³ Ah.
About Elementary charge
The elementary charge (e) is the magnitude of charge on a single proton or electron, defined exactly as 1.602 176 634 × 10⁻¹⁹ C in the 2019 SI revision. It is the quantum of electric charge - the smallest freely occurring charge in nature - and underpins all atomic and subatomic physics. A current of 1 A corresponds to 6.241 509 × 10¹⁸ elementary charges flowing per second.
Quick Reference Table
| Milliampere-hours (mAh) | Elementary charge (e) |
|---|---|
| 1 mAh | 2.247 × 1019 e |
| 2 mAh | 4.494 × 1019 e |
| 5 mAh | 1.123 × 1020 e |
| 10 mAh | 2.247 × 1020 e |
| 25 mAh | 5.617 × 1020 e |
| 50 mAh | 1.123 × 1021 e |
| 100 mAh | 2.247 × 1021 e |