Think the 2.8 mm spade connectors are ones are what you want. https://www.sjscycles.co.uk/electrical-connectors-shrinkwrap/
Spade connectors probably would work fine, but the supernova comes with the butt joints and they do work pretty nicely, means you can pass it through internal cabling ports etc.
@Fforiwr started
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Think the 2.8 mm spade connectors are ones are what you want.
https://www.sjscycles.co.uk/electrical-connectors-shrinkwrap/