18650 1S4P Battery Pack with 10400mAh Capacity

The 18650 1S4P Battery Pack is built with four rechargeable 18650 lithium-ion cells connected in parallel. This structure combines the capacity of all four cells while maintaining a nominal voltage of 3.6V. With a rated capacity of 10400mAh and 37.44Wh of energy, the battery pack provides longer operating time for compatible low-voltage electronic equipment. The finished pack measures approximately 37.5 × 37.5 × 66mm and weighs about 180g. Its compact four-cell arrangement provides more capacity than a single 18650 cell without increasing the series voltage, making installation easier in products designed for a single-series lithium-ion power system.

Integrated Battery Protection

This 18650 Lithium Ion Battery Pack includes an XR-3575-5M protection circuit module. The PCM helps manage overcharge, over-discharge, overcurrent, and short-circuit conditions during charging and operation. The battery reaches 4.2V when fully charged and should be used with a suitable single-series CC/CV lithium-ion charging circuit. The device load, charging system, enclosure design, and relevant battery safety requirements should be reviewed before final integration.

Suitable Applications

This 18650 battery pack can support compatible products such as:

• Portable monitoring equipment
• Handheld testing instruments
• Communication devices
• Remote sensors
• IoT equipment
• Data collection terminals
• Small backup power modules
• Other rechargeable low-voltage devices

The device voltage, operating current, peak current, charging method, connector, available installation space, and working temperature should match the battery pack specifications.

Custom Battery Pack Options

Connector type, wire length, wire gauge, polarity, insulation material, wire exit direction, protection configuration, and product label can be adjusted as part of a custom lithium battery solution. The 1S4P structure provides higher capacity while keeping the nominal voltage at 3.6V. This makes the pack suitable for electronic products that need longer runtime, a compact cylindrical-cell arrangement, integrated protection, and flexible connection options.