The LiionWholesale 3s1pmj1 is a PCB protected battery pack incorporating three MJ1 in series, with bare wire leads so that you can connect it to any device or put on your own connector of choice. This is a 3500 mAh 10 A battery and is one of the best batteries we offer for any devices that need a high capacity but medium discharge protected battery. All protected batteries are not the same - Liion Wholesale makes the best battery packs on the market These are manufactured with a very high quality PCB including a protection IC and four Vanguard MOSFETs for 20A high current cutoff (most PCBs will not be able to handle this much current). This protection circuit protects the battery from mishandling, overcharge, or overdischarge while allowing the battery to do its job properly. This model also has temperature protection just in case it gets too hot. The cell is made by a major cell manufacturer in their Korean or Chinese plant. Our company then adds the high quality PCB along with the wire leads in an ISO certified factory to all safety standards. A blue wrap is put over the top to hold it together. Quick Specs: Manufacturer and part number: Liion Wholesale 3s1pmj1 Max Continuous Discharge Current: 10A Typical Capacity: 3500 mAh (3350mAh minimum) Style: With 80mm wire leads (22 AWG) Maximum Dimensions: 72mm x 58.0mm x 21mm Discharge cut-off voltage: 7.5V (approximate) Nominal Voltage: 10.8V (compatible with 11.1V) Full Charge Voltage: 12.6V Charge Current: 1.675A standard Over-Temperature protection: Yes, 75° C. Protection IC: SH367103 AAE MOSFETS Quantity: 4 MOSFET type: Vanguard VS3698AP Origin: Cell made in Korea or China. Assembled in China. Cell Certifications: UN38.3 test report, IEC62133, CB Scheme, UL1642 Pack Certifications: UN38.3 test report