Uploaded April 2021 | Updated September 2026, 2 weeks ago
Based on a series of tests done over at the electronicsNmore channel (youtube.com/watch?v=uyAtkGaO0hA) I decided to build myself another battery for ham radio use.
These cells are marked 7000mAh, but their spec sheet says 6500 and that seems to be more realistic. The spec sheet also says 30A continuous discharge, so that's what I built the pack for BUT check the tests over at electronicsNmore before you rely on this value. I think 20 is more realistic. My Yaseu 891 draws 18A on full power transmit, so it's an almost perfect match.
Discussed a few safety points about battery building that I think are often overlooked. Especially when using budget imported cells and BMS boards, you really need to go the extra mile to take any reasonable precaution that you can.
Based on a series of tests done over at the electronicsNmore channel (youtube.com/watch?v=uyAtkGaO0hA) I decided to build myself another battery for ham radio use.
These cells are marked 7000mAh, but their spec sheet says 6500 and that seems to be more realistic. The spec sheet also says 30A continuous discharge, so that's what I built the pack for BUT check the tests over at electronicsNmore before you rely on this value. I think 20 is more realistic. My Yaseu 891 draws 18A on full power transmit, so it's an almost perfect match.
Discussed a few safety points about battery building that I think are often overlooked. Especially when using budget imported cells and BMS boards, you really need to go the extra mile to take any reasonable precaution that you can.
