From their site with delivery they come out pretty pricey....Any ideas on where to get replacements?
Someone, somewhere on either here or UKV or AAEC asked exactly the same question last week. (i.i.r.c.)
I think my reply was a little depressing, as they didn't bother to wait for my reply and just ordered one.
2
batteries + P&P is going to be nearly as much as a new kit. Time to swap?

Sorry, couldn't resist.
Charlies vape shop (Charlie) sell bloog KR808D-1 batteries. I don't know how well they work with the Jac PCC, but Jac sell both 55mm and 65mm batteries. You could contact him.
6 months ago, I could have given you 10+ places to buy, but now.....no chance. They were less then £2 wholesale back then. I should have bought 20 instead of 4. Old school kit at new school prices. I feel for you. I've given all mine away.