22.4V 4000mAh 89.6Wh 7S1P 18650 Li-ion Battery Pack with XT60 Connector — Custom OEM Battery Pack

Overview

The HNF Battery 22.4V 4000mAh 7S1P is a custom-configured lithium-ion battery pack built on high-grade 18650 cylindrical cells arranged in a 7-series, 1-parallel configuration. With a nominal voltage of 22.4V, a capacity of 4000mAh, and a total energy output of 89.6Wh, this pack is designed for mid-voltage applications where compact dimensions, reliable discharge performance, and robust connector integration are all required simultaneously.

Each pack is assembled with blue heat-shrink wrapping for insulation and mechanical protection, and fitted with an XT60 discharge connector paired with a multi-wire BMS harness for cell monitoring, balancing, and protection functions. The multi-wire harness configuration makes this pack well suited to systems that require individual cell group voltage monitoring or active balancing via an external BMS or charger.

This is a fully custom OEM product. HNF Battery produces this pack to customer specification, and all parameters including cell brand, capacity, connector type, wire harness layout, BMS protection thresholds, and packaging can be modified to match your exact application requirements.

---

Key Specifications

• Configuration: 7S1P
• Cell Format: 18650 Li-ion
• Nominal Voltage: 22.4V
• Capacity: 4000mAh
• Energy: 89.6Wh
• Max Charge Voltage: 29.4V
• Discharge Connector: XT60
• Harness: Multi-wire BMS balance leads
• Wrapping: Blue PVC heat shrink
• Certification: UN38.3, MSDS
• MOQ: 10 pcs
• OEM/ODM: Available

---

Applications

The 22.4V 7S1P configuration is commonly used in mid-voltage systems where lithium-ion chemistry offers a significant weight and energy density advantage over lead-acid or NiMH alternatives. Typical applications include electric scooters and light personal mobility vehicles, autonomous mobile robots and AGV platforms, UAV ground support equipment, power tool battery packs for cordless equipment operating in the 20–24V range, portable industrial test instruments, medical device power modules, portable lighting rigs and broadcast equipment, and educational robotics platforms requiring sustained high-current output.

The XT60 connector is widely used in RC, robotics, and e-mobility applications for its low-resistance contact design and secure locking fit, making this pack a drop-in solution for many existing harness designs without additional connector modification.

---

Pack Construction and Cell Quality

HNF Battery sources 18650 cells from qualified suppliers and conducts incoming inspection including capacity verification, internal resistance measurement, and self-discharge screening before pack assembly. Cells used in this pack are grade-A production cells meeting the rated 4000mAh specification.

The 7S1P assembly uses nickel strip spot welding with controlled weld parameters to ensure low-resistance cell-to-cell connections. The BMS balance lead harness is assembled with heat-resistant wire and terminated with color-coded connectors for straightforward integration into your system. Blue PVC heat-shrink wrapping is applied under controlled temperature to provide a clean, uniform finish that protects the cell assembly from moisture and minor mechanical impact.

Each completed pack is capacity-tested and voltage-checked before shipment to verify that the assembled pack meets the specified 4000mAh capacity and 22.4V nominal output under standard discharge conditions.

---

BMS and Protection

The multi-wire harness on this pack is designed for use with an external BMS or smart charger that monitors individual cell group voltages across all 7 series groups. For customers requiring a fully self-contained pack with integrated BMS, HNF Battery offers an integrated PCB protection option that adds overcharge protection at 4.25V per cell, over-discharge cutoff at 2.75V per cell, overcurrent protection, and short-circuit protection, with the BMS board enclosed within the heat-shrink wrapping for a cleaner finished product.

---

OEM Customization Options

As a fully custom product line, every parameter of this pack can be adapted to your specification. Available customization includes cell brand selection such as Samsung, LG, Panasonic, Molicel, or equivalent-grade domestic cells, voltage configuration from 3.6V single cell up to 72V multi-series packs, capacity per parallel group from 2000mAh to 5000mAh per cell, discharge connector types including XT30, XT90, Anderson, EC5, T-plug, Deans, or bare wire, wire gauge and length to match your harness routing requirements, integrated vs. external BMS configuration, custom label printing and heat-shrink color, and foam-padded or rigid-shell outer packaging for transport protection.

Prototype samples are available for mechanical fitment and electrical validation testing prior to production commitment. Standard lead time for repeat configurations is 7 to 14 business days. New custom configurations require 15 to 25 business days.

---

Why Choose HNF Battery

HNF Battery is a factory-direct custom lithium battery manufacturer based in Dongguan, China. Our engineering team works closely with product designers, hardware engineers, and procurement managers across Europe, North America, and Asia to develop battery solutions that meet precise application requirements rather than forcing a compromise with off-the-shelf products.

Whether you need 10 prototype units for validation or 5,000 units for production, HNF Battery provides consistent cell quality, reliable BMS integration, and transparent communication at every stage of the order. Contact us at sales@hnfbattery.com or WhatsApp +86 134-8090-2696 to discuss your project requirements or request a sample.