4 x 18650 Battery Holder Wiring Instructions 4S1P


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Configuration - 4S1P 14.8V
Firstly assemble your holder, wires and tools, minimum would be this lot

I find that wires about 27mm long are about right, with about 4mm of insulation stripped on each end
insert the wires under the soldering tabs on the clips - if your wire is quite thick this may be quite fiddly, fine nosed pliers help

You want to connect 1 pair of tabs on each end to acheive this

and the other end in 2 pairs like this

Make sure that the orientation is correct between each end - the single wire on the first end should correspond with a gap on the opposite end
Solder the wires in situ, the polyurethane can take a fair bit of heat, so no need to be too cautious.

The most important step is to label your holder to ensure that you don't accidentally insert batteries the wrong way round
permenant marker pen does the trick for me, just make sure the surface is nice and clean - wipe off any silicon mould release agent first.