Take control of your day with the versatility and performance of JBD HV BMS DIY KIT 6S-300S 50A 100A 200A 300A 220V Battery Management System 96S 128S Master and Slave LiFePO4 High Voltage BMS. Smart, efficient, and built to last — an essential in any collection. Browse and buy online at Keser.pl — trusted products at great prices.