iRobot Roomba 4160 Battery Replacement

Introduction

The battery is the power source for the Roomba 4160. It is a yellow plastic Roomba APS (Advanced Power System) that has a series of small batteries wired together inside. Each time the Roomba is used and recharged, the battery loses a very small amount of internal capacity, and over time, the battery can no longer hold a full charge. In addition, other battery problems, such as a leaky battery or the shorting out and breaking of electrical connections inside the battery, limit the Roomba's operation. This guide will show how to find and replace the Roomba 4160 Battery.

Step 1 - Battery

The underside of an iRobot Roomba 4160 is displayed, with the top cover removed. Key components visible include the main brushes, the yellow 'Roomba Advanced Power System' battery pack, and wheels. The casing has text indicating 'Push yellow tabs to remove and clean brushes' and a warning about electronic parts not being submersible.

• Make sure the Roomba is turned off to avoid an electric shock. ⚡️
• Turn the Roomba upside down, and place it so that the underside is exposed. The wheels and brushes should be visible.
• ⚠️ Do not attempt to open up the yellow battery pack. You may get shocked or burned by the battery acid.

Step 2

Two images demonstrate battery removal. The first shows hands locating the yellow battery pack, and the second shows it being pulled out. The battery is a yellow rectangular unit positioned to the right of the spinning brush.

• Identify the yellow plastic rectangular battery, directly to the right of the spinning brush.
• Place your index fingers on the small rectangular plastic tabs on both sides of the battery. Push the tabs in until the battery comes loose.
• Pull battery out using your fingers.
• ⚠️ Do not attempt to open up the yellow battery pack. You may get shocked or burned by the battery acid.

To re-install battery, follow these instructions in reverse order.