Replacement Li-ion Battery CoreParts MBXSPKR-BA048 4.99Wh 3.7V

CoreParts MBXSPKR-BA048 is a 3.7V lithium-ion replacement battery with a nominal energy capacity of 4.99Wh, designed to restore or extend the runtime of compatible small electronic devices. This compact battery serves as a direct-fit spare for devices that accept the same physical format and electrical ratings, enabling simple replacement and continued device operation.

Advantages

This replacement Li-ion battery delivers a stable 3.7V nominal voltage and the specified 4.99Wh energy capacity to ensure consistent power delivery during normal operation. The battery is designed to match common form factors and connector types used in compatible devices, making installation straightforward for repair or maintenance. Manufactured to meet regular safety and performance expectations for lithium-ion cells, it helps recover device runtime without the need for full device replacement.

Suitable for

• Replacing drained or degraded internal batteries in small electronics that match the voltage and capacity
• Repair shops performing battery swaps for compatible devices
• Users who need a spare battery to extend portable device usage between charges

Key specifications

• Cell chemistry: Lithium-ion (Li-ion)
• Nominal voltage: 3.7 V
• Energy capacity: 4.99 Wh
• Typical applications: Small portable electronics and internal rechargeable modules
• Form factor: Compact replacement cell designed for direct-fit installation

How to use

Before beginning replacement, power down the device and remove any external power sources. Access the internal battery compartment according to the device manufacturer’s disassembly instructions or service manual. Carefully disconnect the old battery from its connector, note the orientation and connector type, and remove it. Fit the replacement battery into the compartment, connect it in the same orientation, and secure any retainers or covers. Reassemble the device and charge the battery fully before normal use to ensure proper calibration and optimal runtime.

Recommendations

Use the replacement battery only in devices that specify a compatible 3.7V Li-ion cell and similar capacity. Avoid exposing the battery to extreme temperatures, puncture, or short-circuit conditions. Dispose of the old battery in accordance with local electronic waste regulations and follow standard safety practices for handling lithium-ion cells.