Watts/Hr limitation for flights

[MDR]

We're traveling with Breeze batteries, airline limits 2 spares of 100-160 WH. But battery is 1150 mAh, 11.1V. How do I convert?

 

[ParagonDrone]

We're traveling with Breeze batteries, airline limits 2 spares of 100-160 WH. But battery is 1150 mAh, 11.1V. How do I convert?

Here ya go...

Convert mAh to Watt hours

 

[Ty Pilot]

I think the formula is: Mah times volts divided by 1000 = Watt Hours. For example, if you have an 1150 mAh battery rated at 11.1V, the power is 1150 mAh times 11.1 volts divided by 1000 = 12.765 watt hours

 

[DoomMeister]

I think the formula is: Mah times volts divided by 1000 = Watt Hours. For example, if you have an 1150 mAh battery rated at 11.1V, the power is 1150 mAh times 11.1 volts divided by 1000 = 12.765 watt hours

This young man wins the prize! PatR is correct again. I believe they need to be at storage level and in a firesafe bag also. Use batteries in the Breeze until you get to 30% then land. When they cool they will rebound to about 50% (11.1 to 11.4VDC).

That is an unloaded voltage. If you put them in the Breeze in that state and start flying you would be back to 30% quickly and down to low voltage warning of 20% within a couple of minutes.

I found out the hard way when I plugged in a used battery for a quick flight. It read 50% with the Breeze on and connected. I took off and climbed to about 150 feet and start getting the low voltage warning in just over a minute. I was down under 10% by the time I landed. Lesson learned about rebound on LiPo batteries.