PCB / BMS Protection Circuit PCM for Li-ion/Li-Polymer Battery Packs 1S (3.7V)2S (7.4V)3S (11.1V)4S (14.8V)5S (18.5V)6S (22.2V)7S (25.9V)8S (29.6V)9S (33.3V)10S (37V)11S (40.7V)12S (44.4V)13S (48.1V)14S (51.8V)15S (55.5V)16S (59.2V)17S (62.9V)18S (66.6V)19S (70.3V)20S (74V)21S (77.7V)22S (81.4V)23S (85.1V)24S (88.8V)25S (92.5V)26S (96.2V)27S (99.9V) - 32S (118.4V)CONTACT USOther Categories BMS with CommunicationsCell-Balance BoardCharge Management BoardPCM for Power Bank & Solar Charger (DC-DC)