The EcoFlow Fixing Metal Tab is a small mechanical bracket used to safely stack and lock DELTA Pro Ultra batteries on top of each other. It measures just 11.3 x 4.8 x 2.4 cm but plays a structural role once you build stacks of three or more batteries under a single inverter.

• Locks DELTA Pro Ultra batteries mechanically to prevent lateral movement in a tall stack.
• Required when stacking 3 or more batteries under one DELTA Pro Ultra Inverter.
• Also used to connect two full DELTA Pro Ultra sets side by side under one inverter.
• Installs on the battery directly beneath the first inverter in the stack.
• Compact 11.3 x 4.8 x 2.4 cm footprint keeps the finished stack tidy.

Key specs

• Dimensions: 11.3 x 4.8 x 2.4 cm
• Compatibility: DELTA Pro Ultra Battery / DELTA Pro Ultra X Battery
• Purpose: mechanical stack fixing

A must-have for larger DELTA Pro Ultra installations where several batteries are permanently stacked to reach 18-30 kWh.