Import 503448 3.7v 880mah Lithium Polymer Battery — Buy in wholesale FOB from Supplier in China

The VP503448 from Vcell Power Co., Limited is a prismatic lithium polymer cell delivering 3.7V nominal at 880mAh capacity, with a 4.2V charge cut-off and 2.75V discharge cut-off. The 503448 dimensional code corresponds to roughly 5.0mm thickness, 34mm width, and 48mm length, yielding a 14% larger footprint and 26% higher capacity than the 503048 format from the same supplier family. Max continuous discharge is rated at 1.5C with peak discharge to 5C, indicating a cell designed for moderate pulse loads beyond steady-state IoT applications.

Built on lithium polymer electrochemistry with a flexible aluminium-laminate pouch, this cell supports the higher discharge rates through optimised electrode surface area and lower internal resistance relative to lower-C-rate counterparts. The 2.75V discharge floor, slightly lower than the 3.0V PCM-protected cut-off seen in some competing models, suggests either a different protection strategy or PCM threshold calibration; buyers should confirm whether this represents the PCM cut-off or the recommended system-level minimum. Standard charge current is not explicitly stated but 0.5C is typical for cells in this capacity class, with 1C max charge capability noted.

This 880mAh configuration targets Bluetooth audio devices, portable medical monitors, smart home sensors, and wearable health trackers where extended runtime justifies the larger cross-section. The VCELL or OEM branding option indicates willingness to supply white-label cells for brand owners. Procurement teams in consumer electronics and medical device OEM should confirm with Vcell Power whether the 5C peak rating applies across the full temperature range or is derated at temperature extremes, as this affects thermal design and safety margin calculations.

Vcell Power Co., Limited operates from Room 2-308 within the Pengchengzhongjun Compass Innovation Industrial Park in Bao An District, Shenzhen, postal code 518100. The address situates the company in a technology park setting common to trading offices and light assembly operations in the region. The harbor trust tier indicates basic platform verification without extended assurance. No response rate or average response hours are recorded, which means buyers should initiate contact to assess technical responsiveness and English-language support capability before committing to volume orders.

The listing positions Vcell Power as offering both VCELL-branded and OEM-labelled cells, suggesting a business model that accommodates brand owners seeking white-label supply. No information is provided about manufacturing ownership (in-house versus outsourced cell production), quality system certifications, or testing infrastructure. The company name differs slightly from Shenzhen Vcell Power Co., Ltd., suggesting either a related entity, a trading arm, or a naming variation; buyers should clarify corporate structure and whether the same factory produces cells for both listings. Factory audit capability, ISO 9001 status, and IEC 62133 test report availability should be requested explicitly.