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Old 08-14-2009 | 07:12 PM
  #11  
Gray Beard
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From: Hemderson, NV
Default RE: Backup RX battery question....


ORIGINAL: ChuckW

ORIGINAL: Gray Beard

Dang Chuck, I was always told to run the same size battery and always wondered about that draw question, thanks.
I was always told it would deplete the smaller battery first then the bigger battery. I didn't buy this so I tested it for myself. They always were drained proportionally. If a 1000mAh battery was drained by 200mAh, a 2000mAh battery in parallel would be drained 400mAh or both by 20%. Now I will say that I do always use packs from the same manufacturer, same brand of cells, etc. That might make a difference, not sure.
That's what I was told so I have always just bought the same size batteries for a plane. Because I often have packs of different mAh sitting in my shop it's a good thing to know.
Crash, way cool device/switch. A bit out of my price range at the moment but I have a couple of planes I would like to have it on!! They just keep coming up with better and better equipment every time I look. Sure beats the days of going into radio shack to buy my electronics!!