2025-05-12

Jump Start MPU 1 or MPU 2

Required Tools:
  • Hand crank dynamo generator (included with MPU 1 and MPU 2)
Informational PurposesAn informational icon, calling your attention
Note
For MPU 3 (built with Powerwall 3), the system does not need a jump start. Simply turn both Powerwall 3 units ON.
  1. Set the toggle switch on the hand crank generator to 12V.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Setting the hand crank generator to another voltage could damage the MPU.
  2. Open the Backup Gateway enclosure and remove the deadfront.
  3. Using 22 - 18 AWG (0.3 - 0.75 mm1) 2-conductor wire, create a jump start cable and connect it to the Gateway Jump terminals.
  4. Connect the jump start wiring from the Gateway to the hand crank generator, landing the red wire on the left and the black wire on the right.
  5. Turn both Powerwall 2 units ON.
    Informational PurposesAn informational icon, calling your attention
    Note
    When viewing Powerwall 2 from the front, the switch is always on the right side of the unit.
  6. Turn the hand crank generator fast for at least 20 seconds, or until the green LED strip on each Powerwall begins flashing. Wait 5-10 minutes for the MPU to boot up; it can then begin to push power.