On Sun, Oct 6, 2024 at 10:17 PM, Andy GD1MIP wrote:
Thanks all, I have reverted to the dry cell tray and some NiMH AA cells whilst I ponder my options.
Just another small note.
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Just about all rechargable cells like AA type are over size physically.
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Bulging battery compartment syndrome etc.
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ENELOOP cells use the correct dimensions as well as having a VERY low self discharge
rate. You can leave them for months when charged, unlike NiCd / other NiMH chemistry
types that goes dead after a few months, and do not recover.
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Sure, you can charge the older type, terminal voltage can be reached and your whizzbang
charger says ready to go. Un oh, nope. Now try pulling some current out of them and the
rig will switch off.
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The other bugbear of using the internal empty cell case is terminal resistance.
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Keep this contacts clean on the cells / springs otherwise it's like having a pack with
a high internal resistance that limits the current.
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Try to run 5w output and again the rig shuts off, grr.
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That's why I keep going back to a simple ?15? external 7ah gel cell for /P ops.
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73 de Andy
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