But alarm/security gel packs I assume you mean used ones that have been in float for long periods of time.
On Wed, Oct 9, 2024 at 5:27 AM, Mike EI9FEB
<ei9feb@...> wrote:
Making up a NiMH pack without the tray (file / sand a corner and solder) fits fine with any model of NIMH. Avoid ones claimed to be 2700 mAH or higher unless you know they are good. I've had to replace nominal 12V packs in test gear that used spot welded AA cells.
UPS / Alarm / Security / Emergency light gel packs are the worse as the assumption is that they are not regularly deep discharged. One or two deep discharges destroys them.
The internal battery compartment is a feature and no worse than any handheld CB using NiMH and maybe 5x better run time than 1970s AA NiCd cells (2500 mAH vs 450 to 500 mAH)
