# Step 10: Install the Battery Assembly and Torso Covers

> Connect the battery assembly to the RPU with the robot powered off, then install the battery and torso covers. The robot stays powered off until actuator calibration.

- Page: https://docs.menlo.ai/asimov/1/build/assembly-steps/torso-module/battery-and-cover-installation/step-10
- Section: Asimov › Asimov 1 › Assemble Asimov 1 › Assemble › Torso Module › Battery + Cover Installation
- Previous: [Step 9: Complete the Head Enclosure](https://docs.menlo.ai/asimov/1/build/assembly-steps/torso-module/head-assembly/step-9.md)
- Next: [Step 11: Torso Verification](https://docs.menlo.ai/asimov/1/build/assembly-steps/torso-module/final-verification/step-11.md)

> [!IMPORTANT]
> **Assign actuator IDs before assembly**
>
> Assign and verify all 25 actuator IDs before assembling the robot. The robot will not work correctly with missing or incorrect IDs. IDs must be assigned one actuator at a time on the bench; you may need to disassemble the robot if you skip this step. See [Assign Actuator IDs](https://docs.menlo.ai/asimov/1/build/assembly-preparations/assign-actuator-ids.md).

## Parts needed

| Part | Count |
| - | -: |
| Integrated robot assembly from Step 9 | 1 |
| Battery assembly from Battery Setup | 1 |
| `100_06C` front torso cover | 1 |
| `100_04C` rear torso cover | 1 |
| M4x20 Flat bolt | 2 |
| M4x8 Flat bolt | 16 |

## Instructions

1. Focus on the inner body of part `100_01C`, we will now install the rest of it.

   Only after all the torso cables from the preceding steps have been routed and connected, put tape over the cables in the cable trench along the inside of the torso to hold them in place as shown below. Do not tape them down before all of that wiring is complete.

   ![Inside the torso, strips of clear tape above and below the waist actuator holding the cables and WAGO connectors flat in the cable trench](https://docs.menlo.ai/manual/v1/images/torso-module/torso-cable-trench-tape.webp)

2. Before you connect anything, check that the battery assembly is switched off. The robot must stay powered off for the rest of the build, until [Calibrate Actuators](https://docs.menlo.ai/asimov/1/operate/setup/calibrate-actuators.md).

   Take the battery assembly and angle it a bit upward and to the left as shown below to allow enough length for the battery power cable to reach the RPU power port. Alternatively, watch the video to show how we do it.

   Then, connect the battery power cable (highlighted in red) to the RPU power port and slot the battery assembly inside part `100_01C` as shown.

   Video: [Connecting and installing the battery assembly (no audio)](https://static.asimov.inc/manual/v1/videos/install-battery-d84b743e2016.mp4)

3. Take **2 of** M4x20 Flat bolts and tighten into the 2 holes on the front chest of part `100_01C` to secure the battery assembly to the body.

4. Take part `100_06C` and put on the front chest of part `100_01C`.

5. Take **8 of** M4x8 Flat bolts and tighten into 8 holes on part `100_06C` to secure it to part `100_01C`

6. Turn the robot around so we can now work on the back cover.

7. Remove the plastic cover from the charger port as shown in the image below. The back cover will not close properly if it is left on.

   Take part `100_04C` and put on the back of part `100_01C`.

   ![Amass XT60E-F charge port held in hand with its yellow plastic cover still attached, which must be removed so the back cover can close](https://docs.menlo.ai/manual/v1/images/torso-module/charge-port-plastic-cover.webp)

8. Take **8 of** M4x8 Flat bolts and tighten into 8 holes on part `100_04C` to secure it to part `100_01C`