by ex-Gooserider » 16 Oct 2018, 01:00
In the US, the standard pins for Anderson SB-50 / PP-75 connectors are sized to use AWG 6 wire. In the UK BM uses 10mm^2, which is roughly equivalent to AWG 7... The chair makers often use AWG 10 or 12, which is IMHO a bit light.
You can use lighter gauge wires, but obviously they won't handle as much load, which might or might not matter...
If using lighter gauge, it can be helpful to stuff some extra short bits of wire into the pin in order to 'fill it up' to about the same as the nominally recommended size wire, as that makes it crimp better. BM recommends soldering the pins, especially if not using a 'factory spec' crimper. See his instructions elsewhere...
On the battery ends, it varies depending on just what sort of terminals the battery has, but basically you need to match the size fasteners on the battery and the size of the wire...
ex-Gooserider
T-5, ASIA-B
Jazzy 1100
Jazzy Select 6
Quickie Q-7
Invacare Mariner
Want to make / get a better chair, ideally one that stands.