Price shown is PER CELL.
CALB LiFePO4 batteries are manufactured under much tighter specifications, and for this reason we have found in our own experience that these are the batteries of choice. Having very consistent internal resistance characteristics, these batteries are known for having a capacity that exceeds their specification by 10% or more. CALB is an abbreviation for “China Aviation Lithium Battery”; their cells are aviation grade and strictly regulated by the Chinese government.
All CALB cells must adhere to very strict quality control standards. Each cell is capacity tested at the factory, so any reputable seller (such as Current Connected) will be able to provide capacity reports correlating to each cell’s serial number. All genuine CALB cells are laser-etched with a QR Code visible from the top of the cell.
It is very important to use a BMS to manage these cells. Here’s Why
LiFePO4 chemistry is easily damaged by over charging, over discharging, over/under temperature, and especially low temperature charging. Use a BMS that monitors each series-connected cell (or group of parallel connected cells) and has a low-temperature cutoff.
Our recommended BMS units: