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How to know how much power is left???

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How to know how much power is left???

Old 06-13-2015, 12:23 PM
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Jack_K
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Default How to know how much power is left???

I've read reviews and articles on electric flight and several have said that "after a flight of xx minutes, there was still yy percent of the battery life left".

How do they know this? What do they use to measure or calculate it?

Thanks,
Jack
Old 06-13-2015, 04:11 PM
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aymodeler
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I use one of these: http://www.amazon.com/Hyperion-EOS-S.../dp/B003YI94KM
Old 06-14-2015, 07:37 AM
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BirdDog
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And I use this http://www.headsuphobby.com/Battery-Checker-C-360.htm

I try to fly to 3.78 volts per cell. It has worked well for me (knock on wood)

Some of the better chargers give you a good idea how deeply you have discharged.

Take this info and adjust your timer accordingly.
Old 08-11-2016, 02:00 PM
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mirwin
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Originally Posted by aymodeler View Post
I bought one of these, actually the newer EOS Sentry 3, but my battery plug doesn't fit.

I primarily fly glow & gas, but I bought an eflite UMX Carbon Cub SS to fly at home. It uses a 180ma 2S battery with (I'm told by Horizon Hobby) an eflite plug. The battery pack has no balance wires.

This eflite plug doesn't fit the Sentry 3.

Does anybody know of an adapter that will work for me?

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