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
1S 2S 3S 4S 3A 20A 30A Li ion Lithium Battery 18650 Charger PCB BMS Protection Board For Drill Motor Lipo Cell Module|Integrated Circuits| - AliExpress