Tattu 650mah 4s Battery - TATTU 650mAh 14.8V 4S 75C Li-polymer Battery -$13.84 Online Shopping| GearBest.com
XT60 Connectors - Special Design 10 Pairs XT60 Male + Female Bullet Connectors Plug for RC Lipo Battery -$6.57 Online Shopping| GearBest.com
Soldering Holder Review - Qx Aluminum Alloy Multifunctional Soldering Station Xt60 Xt90 T Banana Plug

I had the Furibee X140 sent to me, and I decided on the batteries by reading the questions at the bottom of the page. In one question, it was asked what connector it had, and an associate with Gearbest stated "XT30". So I ordered batteries that had that connector on it. Guess what, that info was wrong.

Thankfully over the years of ordering batteries, I have a good little supply of XT60 connectors laying around from swapping over to Deans or T-Plug connectors. Now that I'm thinking about swapping over to XT60 on all of my packs, I figured I would just replace these connectors (XT30) with XT60 connectors so that when I do change over, I can use the same balance board to charge all of my batteries.