So if your devices use 120VAC line voltage, and they draw 150 Watts of power, how much current will that draw from the batteries if you wanted to use LiPo batteries to power an inverter?
Well, ohm's law states that Power (Watts) divided by Voltage (VAC or VDC) equals current (I).
150 Watts / 120VAC = 1.25 Amps.
So what about batteries? The 3S LiPo battery has a maximum fully charged voltage of 12.6VDC.
150 Watts / 12.6VDC = 11.904Amps, or 11.904 Amps for 1 hour is equal to 11,904 mAh.
So if I had a battery, 3S 12.6vdc, 5,000mAh (5Ah), rated for 25C. 25 x 5Ah = 125 Amps.
5 Ah battery / 11,904 mAh = 0.4200268 Hours.
0.4200268 hours x 60 minutes = 25.201 Minutes.
0.201 x 60 seconds = 12.096 seconds. (25 Minutes : 12 Seconds), 100% Efficiency.
Does this look correct?
Well, ohm's law states that Power (Watts) divided by Voltage (VAC or VDC) equals current (I).
150 Watts / 120VAC = 1.25 Amps.
So what about batteries? The 3S LiPo battery has a maximum fully charged voltage of 12.6VDC.
150 Watts / 12.6VDC = 11.904Amps, or 11.904 Amps for 1 hour is equal to 11,904 mAh.
So if I had a battery, 3S 12.6vdc, 5,000mAh (5Ah), rated for 25C. 25 x 5Ah = 125 Amps.
5 Ah battery / 11,904 mAh = 0.4200268 Hours.
0.4200268 hours x 60 minutes = 25.201 Minutes.
0.201 x 60 seconds = 12.096 seconds. (25 Minutes : 12 Seconds), 100% Efficiency.
Does this look correct?