Uploaded December 2024 | Updated September 2026, 2 weeks ago
This video demonstrates how to replace the battery in your Lenovo ThinkPad using the L18M3P73 battery, compatible with T14 Gen 1 and Gen 2, P14s Gen 1 and Gen 2, T490, T495, and P43s models. Start by ensuring safety: disable the built-in battery through the BIOS Utility Settings. Navigate to Power Settings, locate the Battery Disable Option, and select it to prevent electrical damage during the process. Next, remove the back cover by unscrewing it to expose the battery. Carefully remove the four screws securing the battery and disconnect the cable linking the battery to the systemboard. Replace the old battery with the new L18M3P73 model, reconnect the cable to the motherboard, and secure it in place with the four screws. Finally, reassemble the base cover by screwing it back on. This guide ensures a safe and efficient battery replacement for your ThinkPad laptop.
This video demonstrates how to replace the battery in your Lenovo ThinkPad using the L18M3P73 battery, compatible with T14 Gen 1 and Gen 2, P14s Gen 1 and Gen 2, T490, T495, and P43s models. Start by ensuring safety: disable the built-in battery through the BIOS Utility Settings. Navigate to Power Settings, locate the Battery Disable Option, and select it to prevent electrical damage during the process. Next, remove the back cover by unscrewing it to expose the battery. Carefully remove the four screws securing the battery and disconnect the cable linking the battery to the systemboard. Replace the old battery with the new L18M3P73 model, reconnect the cable to the motherboard, and secure it in place with the four screws. Finally, reassemble the base cover by screwing it back on. This guide ensures a safe and efficient battery replacement for your ThinkPad laptop.










