7S 2P Power Wall Balancer PCB for 18650 Battery Holder Case Protection Board | eBay
I just built a 7s 5p 18650 Battery pack. After charging it, it was showing complete 29.4V, but in two days, it's 27.7V with two of p's have only 3.5V. The BMS
Amazon.com: Sara-u 7S Power Wall Balancer PCB Module Power Bank Case 18650 29.4V Battery Holder 20A 40A 60A BMS Battery Box Protection Board for DIY Kit : Electronics
7s Power Wall 29.4v 18650 Battery Holder 7s Battery Pack Balancer Pcm Pcb 20a 40a 60a Bms Battery Case For Diy Kit Ebike Storage - Battery Storage Boxes - AliExpress
7S 24V Lithium Ion battery BMS board Max 30A 60A constant discharge current for converter and 29.4V PCB circuit board of 18650 Battery – LLT POWER ELECTRONIC
Amazon.com: Sara-u 7S Power Wall Balancer PCB Module Power Bank Case 18650 29.4V Battery Holder 20A 40A 60A BMS Battery Box Protection Board for DIY Kit : Electronics