Convert Abcoulombs to Milliampere-hours
Convert Abcoulombs (abC) to Milliampere-hours (mAh) instantly and accurately.
Conversion Formula
mAh = abC × 2.777777778
About Abcoulombs
The abcoulomb (abC) equals exactly 10 C - the charge unit of the CGS-EMU (electromagnetic) system, defined as the charge transported by 1 abampere (= 10 A) in 1 s. Two parallel wires each carrying 1 abampere and spaced 1 cm apart experience a force of 2 dyn per centimetre length. The abcoulomb appears in older electromagnetic engineering literature from the early twentieth century. 1 abC = 10 C.
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.
Quick Reference Table
| Abcoulombs (abC) | Milliampere-hours (mAh) |
|---|---|
| 1 abC | 2.77778 mAh |
| 2 abC | 5.55556 mAh |
| 5 abC | 13.8889 mAh |
| 10 abC | 27.7778 mAh |
| 25 abC | 69.4444 mAh |
| 50 abC | 138.889 mAh |
| 100 abC | 277.778 mAh |