This add-on battery connects with a DELTA Pro to double total capacity to 7200Wh. Connect two of them to DELTA Pro for a staggering 10.8kWh to use off-grid. Recharging from solar panels, AC outlets, EV charging stations, or our Smart Generator is easy. Plug the Extra Battery into DELTA Pro and they will recharge and discharge in tandem. The Extra Battery can be integrated to your home’s wiring when connected to DELTA Pro. These battery units become part of your home’s peak shaving and emergency power solutions.

Product Features:

• 3600Wh storage capacity
• Solar panel compatible (1600W 13A Max)

Product Specifications:

• 99lbs
• 25" L x 11.2" W x 16.4" H
• Battery Chemistry: LFP