3 ms·
As an ecig user / moderate enthusiast, this horrifies me. 18650s are great! It's awesome to know you can easily and cheaply fix an old laptop battery to better
by dave7 9y ago
As an ecig user / moderate enthusiast, this horrifies me.
18650s are great! It's awesome to know you can easily and cheaply fix an old laptop battery to better than it's ever been by replacing the cells with some nice new VTC5s or 25Rs.
Hooking up tons of them with varying capacities and levels of resistance is surely not wise.
Ecig user knows using even an un-married pair of 18650s in a dual 18650 mod is a recipe for blowing up in your face sooner or later.
Idk, maybe there's something with such a large number that makes it less likely to fail catastrophically?
- Dylan16807 9y agoIn a use case like this you're sticking a hundred cells in parallel and [dis]charging them at a fraction of C. This makes the variances in capacity and resistance nearly meaningless. All the cells in a block will safely track the same voltage, and you can easily put a protection circuit on each block to keep that voltage in spec.