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| title | type | author | date | url | tags | ||
|---|---|---|---|---|---|---|---|
| Battery Pack Building | post | micha | 2022-08-27T16:00:00+02:00 | /battery-pack-building/ |
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I have inherited the following collection of battery packs, which were already at least 5 years old at this time:
Two battery packs should now be built from them: One as power supply for my Yaesu FT-817 during portable operation and another bigger one from the remaining cells. For this I took all packs apart, charged each cell and then measured their capacity. I also needed do order a spot welder kit for this.
After I received the spot welder kit, I assembled it and built the smaller battery pack (4s2p) of the two with 14,8V and a capacity of 6200mAh. Worked fine but I had to use a 100Ah battery as power source to make it actually weld.
The spot welder:
The battery:
Then I've built the bigger battery pack in a 4s6p configuration with 14,8V and a cpacity of around 12,5Ah:
