I'm looking to buy (or make) an enclosure for a pair of 4200mAh 21700 cells (parallel). The cells are (spec'd as being) capable of delivering 30A output.
I'd like to be able to swap depleted cells rapidly (for external charging) and that means pressure rather than soldered connections.
Can I get away with spring-based connectors, or do I need screw up connections?
And if the latter, what torque is safe to apply to the cells without damage?
Maybe I am overthinking this, and I am pretty sure that I will never be drawing anywhere near 30A, but I'd rather overthink it now, than discover I underthought it later.
Are the any standards or specifications for this?
Thoughts, pointers, wisdom?
I'd like to be able to swap depleted cells rapidly (for external charging) and that means pressure rather than soldered connections.
Can I get away with spring-based connectors, or do I need screw up connections?
And if the latter, what torque is safe to apply to the cells without damage?
Maybe I am overthinking this, and I am pretty sure that I will never be drawing anywhere near 30A, but I'd rather overthink it now, than discover I underthought it later.
Are the any standards or specifications for this?
Thoughts, pointers, wisdom?