Import 3.7v 21700 Battery 4800mah For E-Bike — Buy in wholesale FOB from Supplier in China

This INR 21700 cylindrical lithium-ion cell from Shenzhen Koeok Electronic Technology Co., Ltd. delivers a nominal 3.7 V with a 4800 mAh rated capacity, making it suitable for e-bike battery packs and other high-draw applications. The cell operates within a voltage range of 3.45 V to 4.2 V ± 0.05 V and measures 21 mm in diameter by 70 mm in length, the standard 21700 format. Internal resistance is specified at 15 mΩ, and the maximum continuous discharge current is 15 A. Cell weight is approximately 69 g.

The INR (lithium nickel manganese cobalt oxide, NMC) chemistry offers a balance of energy density and discharge performance that is standard for mid-to-high power 21700 cells in the e-bike sector. The 15 mΩ internal resistance figure indicates acceptable efficiency for pack assembly, though actual pack-level performance depends on cell matching and BMS integration. The 4800 mAh capacity sits within the typical range for contemporary 21700 cells, which generally span 4000 mAh to 5000 mAh depending on chemistry and manufacturer grading. Shenzhen Koeok Electronic Technology Co., Ltd. markets this as a Tesla-derived cell format, though buyers should verify cell origin and batch testing independently.

E-bike manufacturers and battery pack assemblers are the primary buyers for this cell. The 15 A discharge rating supports moderate power demand in 36 V or 48 V configurations when assembled in series-parallel arrays. Buyers should confirm whether cells are supplied with nickel strip welding, BMS compatibility data, and cycle life documentation. The supplier's Harbor trust tier and 0.00 response rate mean direct communication to negotiate MOQ, warranty terms, and shipping arrangements is essential before committing to an order.

Shenzhen Koeok Electronic Technology Co., Ltd. is located at 2/F, 2nd Building, 4th Industrial Area, Heshuikou, Shenzhen, 518000, China. The supplier holds a Harbor trust tier on the platform, which represents a baseline verification level. The response rate is recorded at 0.00 with an average response time of 0 hours, indicating no response history is available through the platform interface. Buyers should treat this as an unproven communication channel and establish direct contact before relying on platform messaging.

The listing focuses on a single 21700 cell product with Tesla car battery branding in the product name. No factory size, year of establishment, revenue, employee count, or client references are provided in the source data. The supplier address places it in Shenzhen's Songgang or Gongming area, a zone with dense electronics manufacturing activity. Buyers should request ISO 9001 or comparable quality system documentation, cell testing reports (UN38.3, IEC 62133), and supplier business licence verification directly from Shenzhen Koeok Electronic Technology Co., Ltd.