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Misc. Radio Gear

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  • Taken with Apple iPhone 11
  • Focal Length 4.3 mm
  • Exposure Time 1/60
  • f Aperture f/1.8
  • ISO Speed 160

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Battery pack testing using a lab grade electronic load. Battery pack is discharged using constant current mode. Rate is set at 0.2 times the rated battery pack capacity. This is one of the typical rates used for capacity rating by manufacturers.

The Kenwood Lithium Ion battery packs have a rated output voltage of 7.2/7.4 VDC. There is a protection circuit in them, over charge and over discharge, which shuts the pack down if the charge voltage goes too high or discharge voltage too low, around 5.7 VDC more or less. The HT's typically will alarm out/shut down around 6 VDC so that's my discharge cutoff voltage. 

Data sheet:


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