Battery HP L77689-172 — 45Wh Li-Polymer replacement battery for portable devices

Rechargeable HP L77689-172 45Wh Li-Polymer replacement battery is engineered to serve as a direct power source for compatible portable devices. This lightweight Li-Polymer pack delivers 45 watt-hours of energy capacity to restore or extend device runtime while preserving portability. The battery is intended for scenarios where the original battery has degraded or a spare is required for travel and mobile work.

Advantages

The battery offers a balance of energy density and low weight typical for Li-Polymer cells, allowing for longer operation between charges without significant added bulk. Designed to match the original equipment manufacturer’s fit and connector layout, it supports straightforward installation and reliable electrical contact. The 45Wh nominal capacity provides predictable discharge characteristics for standard portable device power management systems.

Suitable for

• Replacing a worn or failed internal battery in compatible HP portable devices
• Extending runtime for mobile work, remote meetings or travel
• Keeping a spare battery for field service, on-site repairs or temporary deployments

Key specifications

• Chemistry: Lithium-Polymer (Li-Polymer)
• Rated energy: 45 watt-hours (Wh)
• Form factor: compact prismatic pack suitable for internal installation
• Typical use: designed for compatibility with select HP portable devices requiring a 45Wh Li-Polymer battery

How to use

Before installation, power off the device and disconnect any external power source. Remove access panels or follow the device manufacturer’s service instructions to reach the internal battery compartment. Disconnect the old battery connector carefully and replace it with the HP L77689-172 45Wh Li-Polymer pack, ensuring correct alignment and secure electrical connection. Reassemble the device and perform a complete charge cycle before normal use to allow the device power-management system to recognize the new battery.

Recommendations

Use only with compatible devices specified by the device manufacturer. Charge with the original or manufacturer-recommended adapter and avoid exposure to liquids, extreme temperatures, or mechanical damage. Dispose of the old battery according to local regulations for lithium-based batteries and follow safety instructions for storage and transport.