126090 LiPo Battery 3.7V 8000mAh 29.6Wh Rechargeable Lithium Polymer Battery with JST Connector

Overview

The HNF Battery 126090 is a high-capacity rechargeable lithium polymer (LiPo) battery designed for applications that require substantial energy storage in a flat, compact pouch-cell format. With a nominal voltage of 3.7V, a rated capacity of 8000mAh, and an energy output of 29.6Wh, the 126090 delivers nearly three times the energy of standard mid-size LiPo cells, making it one of the most capable single-cell LiPo options available in the 12mm thickness class. Its dimensions of 12mm thick, 60mm wide, and 90mm long allow it to fit into a wide range of medium-to-large portable device housings where prismatic or cylindrical cells would be impractical.

The battery is supplied with a JST connector as standard, enabling straightforward integration with existing harness designs. Custom connector types, wire gauges, wire lengths, and protection circuit configurations are available for OEM and ODM customers requiring tailored solutions.

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Key Specifications

• Model: 126090
• Chemistry: Lithium Polymer (LiPo)
• Nominal Voltage: 3.7V
• Capacity: 8000mAh
• Energy: 29.6Wh
• Dimensions: 12mm (T) × 60mm (W) × 90mm (L)
• Connector: JST (custom available)
• Certification: UN38.3, MSDS
• MOQ: 50 pcs
• OEM/ODM: Available

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Applications

The 126090’s high energy density and large flat footprint make it suitable for a wide range of demanding portable applications. Devices that benefit most from this cell include portable power banks and backup battery modules, industrial wireless handheld terminals and rugged mobile computers, tablet computers and large-screen e-readers, portable medical devices including patient monitors and infusion pumps, field communication equipment and satellite terminals, portable LED lighting systems and emergency lanterns, autonomous ground vehicles and robotics platforms, smart home security hubs with long standby requirements, portable test and measurement instruments, and educational robotics kits and STEM platforms requiring extended run time.

For applications currently using multiple smaller cells in parallel, the 126090 offers a simpler single-cell alternative that reduces assembly complexity, lowers BMS cost, and improves pack-level reliability by eliminating cell-to-cell imbalance issues.

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Stable High-Capacity Performance

HNF Battery 126090 cells are produced under strict manufacturing controls using high-grade electrode materials and precision-coated separators. Each cell undergoes a full formation, rest, and capacity grading process before release, ensuring that every shipped unit meets the rated 8000mAh specification. Capacity matching is available for customers requiring multi-cell parallel configurations.

The 126090 exhibits a stable, relatively flat discharge voltage profile throughout the majority of its capacity range, maintaining output close to the nominal 3.7V until near depletion. This is particularly important for battery-powered devices that rely on voltage monitoring for accurate state-of-charge estimation. Low self-discharge rate ensures that cells retain most of their charge during extended storage or seasonal inventory periods.

Charging is compatible with standard single-cell LiPo CC/CV protocols at a maximum charge voltage of 4.2V. The large cell format supports moderate charge and discharge currents suitable for most consumer and light industrial applications.

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Safety and Compliance

The HNF Battery 126090 is designed with multiple safety mechanisms suited to its high-energy format. The pouch cell structure incorporates a pressure-relief vent and thermal-stable separator material to limit propagation risk under fault conditions. An optional PCM (protection circuit module) adds electronic overcharge protection at 4.25V, over-discharge cutoff at 2.75V, and short-circuit protection, providing a complete safety layer for devices without a dedicated BMS.

All 126090 cells are certified to UN38.3, meeting the international standard for lithium battery transport by air freight and sea freight. MSDS documentation is available upon request to support hazardous goods declarations, customs clearance, and market-specific regulatory compliance including requirements in the EU, US, UK, and Australia.

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OEM and Custom Battery Solutions

HNF Battery supports full OEM customization of the 126090 platform. Available options include alternative capacities from 6000mAh to 10000mAh within the same form factor class, custom connector types including Molex, PH2.0, XT30, bare wire, and solder tab terminations, custom wire length from 80mm to 500mm and wire gauge from 24AWG to 20AWG, integrated PCM with selectable protection thresholds, custom cell labeling, logo printing and color wrapping, individual EVA foam or blister tray packaging for assembly line use, and mixed-model orders combining the 126090 with other HNF Battery LiPo or Li-ion SKUs.

Prototype samples are available prior to mass production commitment. Standard lead time is 7 to 14 business days for off-the-shelf configurations. Custom specifications typically require 15 to 25 business days.

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Why Source from HNF Battery

HNF Battery is a factory-direct lithium battery manufacturer based in Dongguan, China, with a proven track record of supplying LiPo, Li-ion, and LiFePO4 battery solutions to B2B customers across Europe, North America, Australia, and Southeast Asia. Our vertically integrated production covers cell fabrication, assembly, PCM integration, capacity grading, and final inspection, ensuring consistent quality without reliance on third-party intermediaries.

We provide competitive factory-direct pricing, responsive technical support, and dedicated account management for all repeat B2B customers. Contact our sales team at sales@hnfbattery.com or via WhatsApp at +86 134-8090-2696 to request samples, technical datasheets, or a bulk pricing quote.