Lithium Ion 18500 protected battery. e-lectronics protected batteries contain a protection circuit identified by any of the following: PCB (printed circuit board), PCM (power control module), or IC (internal circuit) which are all terms that indicate the cell has an electronic circuit designed to create an open circuit when design specification values of current or voltage are exceeded. This circuit is located at the negative end of the cell with in a small plastic case and concealed by the PVC shrink wrapping.

Application note: These protected cells have a flat positive terminal, for applications using cells in a parallel (end to end) configuration, a dot of solder must be applied to the negative end of one of the cells for continuity, this is not needed for single cell applications. This may be requested in the order notes and we will apply the solder for you. By applying the solder to the negative end, the cell is not compromised as the PCB is not directly attached to the battery canister; it is not recommended to solder to the Positive terminal to avoid damaging the battery or to use magnets as they may slip causing a short curcuit.

Operating Specifications:

NOTE: Length and diameter were determined by a random sampling of cells, this table represents the largest measurements from this sampling.

Click here to download the full specification sheet.