Battery A2181 for Apple Watch 5 / SE / SE (2022) - 44mm

OEM Battery A2181 for Apple Watch Series 5 / SE / SE 2022 44mm – 296mAh

This OEM replacement battery is designed for compatible 44 mm Apple Watch Series 5, Apple Watch SE and Apple Watch SE 2nd Generation (2022) models.

The rechargeable prismatic lithium-ion battery provides a rated capacity of 296 mAh and an energy rating of 1.14 Wh. Its device-specific dimensions and integrated flex contact make it suitable for professional smartwatch battery replacement and refurbishment.

Product Features

• OEM replacement battery for compatible 44 mm Apple Watch models
• Battery reference: A2181
• Rated capacity: 296 mAh
• Nominal voltage: 3.85 V
• Rated energy: 1.14 Wh
• Rechargeable lithium-ion battery
• Prismatic cell construction
• Integrated device-specific flex contact
• Suitable for professional smartwatch repair and refurbishment

Compatibility

• Apple Watch Series 5 – 44 mm
• Apple Watch SE – 44 mm
• Apple Watch SE 2nd Generation (2022) – 44 mm

This battery is intended for compatible 44 mm versions only. Before ordering, compare the battery reference, physical dimensions and flex contact position with the installed battery.

Technical Specifications

• Battery reference: A2181
• Battery technology: Lithium-ion
• Cell construction: Prismatic, rechargeable
• Rated capacity: 296 mAh
• Nominal voltage: 3.85 V
• Rated energy: 1.14 Wh
• Standard discharge current: 0.2C / 59 mA
• Maximum continuous charging current: 0.5C / 148 mA
• Maximum continuous discharge current: 1C / 296 mA
• End-of-discharge voltage: 3.0 V
• Installation type: Internal smartwatch battery

Documented Battery Life Reference

• After 100 charging cycles: Approx. 99–98% capacity
• After 200 charging cycles: Approx. 97–95% capacity
• After 300 charging cycles: Approx. 94–93% capacity
• After 400 charging cycles: Approx. 91–90% capacity
• After 500 charging cycles: Approx. 88–87% capacity

Documented Safety Tests

• Altitude simulation test – Passed
• Thermal test – Passed
• Vibration test – Passed
• Shock test – Passed
• External short-circuit test – Passed
• Crush test – Passed
• Overcharge test – Passed
• Forced discharge test – Passed

Storage and Operating Information

• Recommended discharge temperature: 0°C to 35°C
• Recommended charging temperature: 10°C to 30°C
• Short-term storage: -20°C to 45°C
• Medium-term storage: 0°C to 25°C
• Long-term storage: 15°C to 25°C
• Recommended long-term charge level: 30–50%

Installation and Safety Information

• Professional installation is recommended
• Reduce the charge level of the old battery before removal
• Do not bend, pierce, crush or expose the battery to excessive heat
• Do not install a swollen, leaking or visibly damaged battery
• Separate display or battery adhesive may be required during reassembly
• Opening the watch may affect its original water resistance

Product Details

• Item number: 17296
• Product: OEM Smartwatch Replacement Battery
• Battery reference: A2181
• Compatible devices: Apple Watch Series 5 / SE / SE 2022 – 44 mm
• GTIN: 4251488636281
• Packaging: Bulk
• Packaging unit: 1 piece

Package Contents

• 1 x OEM Battery A2181 for Apple Watch Series 5 / SE / SE 2022 – 44 mm