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Example of Watts to mAh Calculations
To convert watts (W) to milliampere-hours (mAh), you need to know the voltage (V) of the battery. The formula to convert watts to mAh is:
mAh = Watts×1000/Volts
Assuming a common voltage of 3.7V, which is typical for lithium-ion batteries.
Table of Watts to mAh Conversions
Below is a table showing the conversion of various watt values to mAh, sorted from smallest to largest, assuming a voltage of 3.7V.
| Watts (W) | Voltage (V) | mAh | Watts (W) | Voltage (V) | mAh |
|---|---|---|---|---|---|
| 5.00 | 3.70 | 1351.35 | 10.00 | 3.70 | 2702.70 |
| 15.00 | 3.70 | 4054.05 | 20.00 | 3.70 | 5405.41 |
| 22.50 | 3.70 | 6080.41 | 30.00 | 3.70 | 8108.11 |
| 40.00 | 3.70 | 10810.81 | 65.00 | 3.70 | 17567.57 |
| 100.00 | 3.70 | 27027.03 | 150.00 | 3.70 | 40540.54 |
| 160.00 | 3.70 | 43243.24 | 200.00 | 3.70 | 54054.05 |
| 300.00 | 3.70 | 81081.08 | 500.00 | 3.70 | 135135.14 |
| 600.00 | 3.70 | 162162.16 | 1000.00 | 3.70 | 270270.27 |
Convert 10 Watts to mAh
To convert 10 watts to mAh at 3.7V:
mAh=10×1000/3.7≈2702.70 mAh
Convert 20 Watts to mAh
To convert 20 watts to mAh at 3.7V:
mAh=20×1000/3.7≈5405.41 mAh
Convert 100 Watts to mAh
To convert 100 watts to mAh at 3.7V:
mAh=100×1000/3.7≈27027.03 mAh