3 ms·
The polarity of the 18650 cells themselves is not that obvious either. Each manufacturer marks their cells differently or not at all. Many cells are flat on bot
by aetherspawn 2y ago
The polarity of the 18650 cells themselves is not that obvious either. Each manufacturer marks their cells differently or not at all. Many cells are flat on both sides and do not have a "nipple" indicating the positive side.
The fuse solution mentioned here by the manufacturer sounds like a good solution.