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There's a flurry of battery holders that accept 21700 cells, but the power delivery is just too weak IMHO. From memory, the max output was about 20~30W for the
by makeitdouble 1y ago
There's a flurry of battery holders that accept 21700 cells, but the power delivery is just too weak IMHO.
From memory, the max output was about 20~30W for the bigger models [0]. For 2 cell types it gives 10W, so barely good enough to slowly charge a smartphone.
https://www.amazon.co.jp/PLCPDM/dp/B0DFPKXQZ1 https://www.amazon.co.jp/PLCPDM/dp/B0DFPKXQZ1
- datadrivenangel 1y agoYou can get these for 18650s as well. Most of them use rails though, so different cell chemistries are a bit of a risk over time.