Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
It's a good charger for unprotected 18650 bateries.
When the green LED lights up after charging, the battery is somewhere between 4.16 and 4.19 Volts.
It's really tight! Protected UniqueFire Cells (29031) don't fit easily and the plastic protection of the battery will be damaged when inserted or removed. 1 -2 mm more space would be enough. But the plastig got weak when I tried to widen it.
The case could be a bit wider to fit protected cells as well...
I use the charger for unprotected cells I salvaged from laptop battery packs. Since I use unprotected LiPo Cells in my model planes, I'm not scared of it.
Unprotected cells just have to be handled a bit more carefully.
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