OUPES B2 Smart Extra Battery 2048Wh, for Expand Mega 1/Mega 2 Pro Capacity LiFePO4 Battery, Separate Output, Dual 100W USB-C PD 2100W Max Solar Charging, App Control, Stackable Design

[Expand Your Portable Power Station] - OUPES B2 extra battery comes with 2048Wh capacity, ideal for expanding the capacity of Mega 1/Mega 3/Mega 2 Pro portable power stations. Mega 1 reaches up to 5120Wh with 2x B2 extra batteries. Mega 3 hits 15.36kWh with 6x B2 extra batteries. Mega 2 Pro hits 10.24kWh with 4x B2 extra batteries – perfect for scalable off-grid energy. [Separate Output Function] - B2 smart extra battery not only expands capacity, but also works as an independent power source to power your devices. It features 4x QC3.0 (18W Max) USB-A ports, 2x USB-C (100W PD) ports, 2x DC5521 (12V/10A) ports, 1x 12V Car lighter port and 1x Anderson (12V/30A) port. [Reliable & Long-Lasting] - Built with a durable LiFePO4 battery ensures over 3500 cycles at 80% capacity. The BMS (Battery Management System) ensures long-term performance and safety, outperforming standard other batteries. [Designed for Compatibility] - Its stackable design connects seamlessly to the Mega 1/Mega 3 portable power stations. It’s more space-saving to store and easy to stow in the car when out and about. You can tailor power capacity for homes, RVs or outdoor rigs. [Control Remotely] - Easily monitor real-time power status, output settings, and firmware updates via a Wi-Fi/Bluetooth App (compatible with iOS/Android) from your smartphone. Plus, tweak settings via the detailed usage dashboard to optimise performance and convenience.