Import 6-Dzm-12 Electric Vehicle Bikes — Buy in wholesale FOB from Supplier in China

The 6-DZM-12 from Guangdong Kejian Power Supply Technology Co., Ltd. is a 12V 12Ah sealed lead-acid battery using absorbent glass mat (AGM) technology, rated at 144 Wh electric energy and weighing 4.3 kg. The battery measures 150 mm by 100 mm by 98 mm (L by W by H) and is packaged four units per carton with a single gross weight of 17.2 kg per package. This VRLA (valve-regulated lead-acid) design operates as a maintenance-free unit, targeting electric bicycles, scooters and electric wheelchairs as primary applications.

AGM construction immobilises the electrolyte in a glass-fibre mat separator, enabling higher discharge currents and improved vibration resistance versus flooded lead-acid designs. The 6-DZM-12 designation follows the Chinese industry naming convention: 6 cells, DZM series (electric vehicle motive power), 12 Ah capacity. Cycle life is rated at 500 cycles, a figure that depends heavily on depth of discharge, charging regime and operating temperature. Standard charging uses a 1A rate, matched to the 12 Ah capacity for a 12-hour full charge from deep discharge.

The battery's 144 Wh energy content and 4.3 kg mass yield a gravimetric energy density of approximately 33 Wh per kg, typical for AGM lead-acid in this class. Buyers include electric bicycle assemblers, scooter OEMs, mobility aid manufacturers and aftermarket parts distributors. OEM support is offered, though buyers should confirm branding, label customisation and minimum order thresholds. Warranty is stated at one year, but coverage terms, proration and claim conditions require direct clarification with the supplier.

Guangdong Kejian Power Supply Technology Co., Ltd. maintains an office at No.162 Qifeng Road, Dongguan City, Guangdong Province, with production facilities at 3F, Building 4, No. 2 Lingxia Construction Street, Liaobu Town, Dongguan City, 523000. The supplier holds a harbor trust tier with a 0.00% response rate and zero recorded average response hours, indicating limited or untested inquiry handling. The dual-address structure, office and factory, suggests separate administrative and manufacturing locations within the Dongguan industrial corridor.

No information is provided about years in operation, workforce size, annual battery production capacity, export markets served, or certification beyond the stated one-year warranty. The listing does not disclose ISO 9001, ISO 14001, UN38.3 transport certification or IEC 61056 compliance documentation. Buyers should request business licence, factory audit capacity reports and test laboratory accreditation. The OEM support mention implies private-label capability, but minimum order quantities and tooling charges for customised labels or cases are not specified.