Female 3.5x1.1mm - 5.5x2.1mm

I had to order this part separate since I was using a discontinued Voltaic battery. They knew exactly what I needed over the phone and were able to expedite it to me as I had already installed the time lapse camera and the client was waiting… it showed up and I was impressed that it “locks” on to either connection with a collar that extends past the connection. I mean, of course it makes total sense now that I’ve installed it. But credit is due to Voltaic for using top shelf materials from the top end product to the little connection way at the the bottom.

Sturdy and functional!