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| Power Consumption | 10w |
Currnet ( I = P/V ) | =10w / 12v = 0.8A |
| How long will it run on a 80Ah battery? | = C / I = 80 Ah / 0.8A = 100 hours = 4.16 days |
How long using 4x 18650 2S2P (7.4v) C = 2 x 2Ah = 4Ah I = P / V I = 10w / 7.4v I = 1.35 A | = C / I = 4 Ah / 1.35 A = 3 hours |