2017 sp battery

Yep, and insulate with tape for good measure.

Just as a side note I use a R.C type charger to charge Lithium batteries, I prefer to be able to be able to balance charge each cell rather than just trickle it.

 

thanks I will have a look. which make and type do you use ?

 

The charger I use is https://www.rcgeeks.co.uk/overlande...MIqpHY9cXN1wIV8QrTCh0r6QmiEAQYASABEgItT_D_BwE

this charges everything!