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ASVA battery charging algorithm

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KD4CSO

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Nov 14, 2015
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Hi, folks. I was wondering if anyone knew what the ASVA battery charging protocol was. Mine seems pretty unsophisticated...or maybe it's just the display that's unsophisticated.

One of the ASVAs I have is packaged in a Halliburton case... designed for some unnamed Federal government agency (I'm guessing WHCA) to swoop into some itinerant site, pop up a little antenna and plug the suitcase into a wall (or a big battery) and operate for a while.

I have a herd of VHF and UHF Astro Sabers (Mostly Saber III's, but some II's also) and a mixture of NiCd, NiMHd and Li batteries. The Impress chargers I have recognize the different batter chemistry and charge them differently. The LED charge display show fast charging-85 (or 90) % (red LED), a slower rate for "topping off"/final charging (flashing green), and fully charged/ trickle maintaining (solid green). For a charging indicator, the ASVA has a solid red LED and a solid green LED, with no third state indicated.

How sophisticated are the ASVA battery charging circuits? I'm tempted to dedicate a battery or two to them, and just let the ASVA charge them however it wants, then replace the battery after a few years.

(I also find it annoying that the ASVA requires a specific battery depth to make all the antenna and microphone connections with the Saber, while the Convertacom I have for my MX-300 series radios can deal with any radio and any battery within the series from an MX-320 to -360... but I digress...)

Thanks for any insight into the Motorola Mindset.

Arthur
 
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