Nevon Express supplies a wide range of high-quality sensors and modules which includes 7.4V 2500 mAh 18650 2C Rechargeable Battery Pack, Battery Type: Lithium-Ion. We aim at providing and satisfying all demands of customers and provides them high quality products with more convenience, higher efficiency and optimized cost. LI-ION BATTERY PACK 7.4V / 2500 mAH. This lithium-ion pack is made of 3 balanced 2200mAh cells for a total of 6600mA capacity! The cells are connected in parallel and spot-welded to a protection circuit that provides over-voltage, under-voltage and over-current protection.