EcoFlow WAVE 2 extra accu 1159 Wh

The EcoFlow Wave 2 Add-on Battery 1159 Wh is a supplemental power module designed to extend runtime for compatible EcoFlow Wave 2 systems. With a nominal capacity of 1159 Wh and a compact black enclosure, this add-on battery increases available energy for devices and appliances without altering the main inverter unit. It is intended as an accessory for the EcoFlow Wave 2 family to provide additional autonomy during outdoor activities, work away from mains power, or short-term emergency backup.

Advantages

This add-on battery delivers a high-capacity, plug-in expansion option that integrates with EcoFlow Wave 2 systems to extend operating time for connected loads. The unit’s form factor and black finish match the Wave 2 aesthetic, and its straightforward connection method simplifies installation and removal. Because it is a dedicated add-on battery, it reduces the need to run multiple separate power sources while keeping the footprint and cable complexity minimal.

Suitable for

• Extending runtime for EcoFlow Wave 2 portable power stations and compatible inverters
• Providing additional energy for outdoor recreation such as camping and RV use
• Short-term backup power for small appliances and electronics during outages
• Remote or off-grid work where extended portable power is required

Key specifications

• Usable capacity: 1159 Wh (nominal energy storage)
• Product type: Add-on battery module for EcoFlow Wave 2 systems
• Compatibility: Designed to pair with EcoFlow Wave 2 models and compatible Wave-series units
• Color: Black
• Physical form: Portable, stackable/attachable battery module (external expansion)

How to use

Connect the EcoFlow Wave 2 Add-on Battery 1159 Wh to the compatible Wave 2 base unit using the manufacturer-provided interface or cable. Ensure both units are powered down or follow the Wave 2 manual instructions for hot-swapping if supported. After connection, the system will recognise the additional capacity and allocate available energy to connected loads through the Wave 2’s power management. Monitor charge level and status using the host unit’s display or accompanying app where available, and follow standard charging practices recommended by EcoFlow.

Recommendations

Store and operate the add-on battery within the environmental and charging limits specified by EcoFlow. Regularly check firmware and setup instructions for the Wave 2 base unit to ensure safe integration. Use the add-on battery as intended—paired with compatible EcoFlow Wave 2 hardware—and avoid exposing the unit to extreme temperatures, moisture, or impacts.