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Michael Clemens 2022-09-09 07:45:09 +00:00
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content/post/battery-pack-building.md
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@ -13,9 +13,11 @@ I have inherited the following collection of battery packs, which were already a
![image](/img/battery_packs.jpg)
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.
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:
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.
![image](/img/capacity_testing.jpg)
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:

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