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General control line discussion => Open Forum => Topic started by: Robert Zambelli on August 08, 2024, 05:31:37 PM

Title: Parallel
Post by: Robert Zambelli on August 08, 2024, 05:31:37 PM

I'm new to lithium batteries and I could use some advice.

I have some 380mAh single cells (3.7 VDC).
Can they be wired up in parallel to yield 760 mAh?
If so, would they be charged separately or in parallel?
I want to use them in my spark ignition planes instead of three AAA alkaline batteries.

Thanks for any help.

Bob Z.

Title: Re: Parallel
Post by: Curare on August 08, 2024, 05:58:02 PM

You most certainly can use them in parrallel.

In the past I've just used a Y lead to connect them in parrallel, and charged separately but you can parrallel charge them through the Y lead if you chose to.

Title: Re: Parallel
Post by: Tim Wescott on August 11, 2024, 05:14:28 PM

How much current does your ignition system pull?

How much on average, how much with the points closed?

AAA batteries are not good current sources, I suspect that a single cell should deliver plenty of current for a 6-minute flight, and it'll weigh half as much as two cells in parallel.