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From: "Jim Wilkins" <muratlanne@gmail.com>
Newsgroups: rec.crafts.metalworking
Subject: Re: Got 4Ah, not 5Ah, battery 18V (20V) - done right thing?
Date: Thu, 16 May 2024 20:55:37 -0400
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"Clare Snyder"  wrote in message 
news:de7d4jdbeg027ukfm8smj5qg08t4c1aen9@4ax.com...

On Thu, 16 May 2024 15:43:01 +0100, Richard Smith <null@void.com>
wrote: ...

Are these lithium or NiMH? If lithium, which type? Some batteries can
safely be discharged at only 1C (4 amps for a 4Ah battery) while
others can be discharged at as much as 5C (20 amps), and others only
..5C (2 amps) without over-heating or deteriorating the battery.
Generally speaking the higher capacity battery is USUALLY better for
high discharge loads (heavy duty operation)

--------------------------------
Lithiums for RC models may be rated to deliver 50 ~ 100C discharge current.

This is a good overview of batteries:
https://rcplanes.online/guide3.htm