Import 3.7v Lithium Battery 18650 Battery — Buy in Bulk from Supplier in China

The 18650 cylindrical lithium-ion cell from Shenzhen Ibest Power Co., Ltd. delivers a nominal 3.7 V with energy density suited to sustained-draw applications. The 18 mm diameter by 65 mm length format (hence 18650) is the industry standard for removable battery packs, with typical capacities ranging from 1800 mAh to 3500 mAh depending on the specific cathode chemistry selected. These cells rely on a lithium cobalt oxide or blended NMC cathode paired with a graphite anode, with organic electrolyte and polyolefin separator forming the electrochemical stack.

Construction centres on a steel canister with PTC thermal disc and CID (Current Interrupt Device) pressure vent for abuse tolerance. The standard cell mass is approximately 45 g, with typical internal impedance below 35 mOhm for high-drain variants. Cycle life is contingent on depth-of-discharge and charge-rate protocols, with 500 to 1000 cycles to 80 % capacity retention considered standard under IEC 61960 test conditions. Shenzhen Ibest Power Co., Ltd. sources from the Guangdong manufacturing cluster, where cell formation, ageing, and grading infrastructure is concentrated.

Primary applications span cordless power tools,P backup power, e-bike battery packs, medical carts, and portable lighting. Buyers include OEMs assembling battery packs, industrial equipment makers, and distributors serving the replacement market. Trade terms from this supplier require direct confirmation, as the listing does not specify MOQ, lead time, or Incoterms. Importers should verify whether cells are offered as bare cell or with protection circuitry, and whether UN38.3 test summary documentation is provided for air and sea freight compliance.

Shenzhen Ibest Power Co., Ltd. operates from B-26Th Building, Yulong Garden on Baojie Road in Luohu District, Shenzhen, placing it within the Greater Bay Area battery manufacturing corridor. The supplier carries an imported tier classification and a harbor trust tier, indicating profile data imported from an external source with baseline marketplace verification. Notably, the response rate is listed at 0.00 % with zero average response hours, which suggests either a new listing or a supplier that has not yet engaged actively through the platform messaging system. No factory audit, ISO certification, or third-party verification details are present in the source data.

The listing positions the company as a source for 18650 lithium cells but does not disclose production capacity, owned manufacturing versus trading, or key account references. Buyers should therefore treat initial engagement as a qualification exercise: request factory registration, quality management system documentation, and sample test data before committing to volume orders. The Luohu address is a commercial location rather than an industrial park, which may indicate trading or assembly rather than cell manufacturing. Direct communication is essential to clarify whether Shenzhen Ibest Power Co., Ltd. manufactures cells, sources them from partner factories, or operates as a pack assembler.