The Tesla Powerwall 2 Stack Kit joins two floor-mounted Powerwall 2 units in front-to-back multi-Powerwall installations. Side clips and a top cover secure the units and prevent debris from falling between them. An optional bridge assembly conceals wire runs between the Powerwalls, preserving the clean lines of the installation.

Up to 3 floor-mounted Powerwalls can be joined using two Stack Kits. 

For systems with more than 3 Powerwalls, separate groups of 3 units should be assembled.