[Ashlandchris]

Caution - numpty alert.
You are right Alan. I had tried that on a battery that my charger wouldn't charge, giving a "voltage error". Why I didn't think to try it one one that I know is ok, before posting on here is beyond me!
Obviously that battery has a problem. Just tried it with a battery I know works and that was fine.
Have now modified the 2cell connector to have the 4mm bullets on a longer lead so it is easier to use. Job done.

And the duff lipo - that one is for the bin!

Ps - even when I kept it a secret, the unforeseen and unforcast rain managed to make it to Batley...