With the possibility for massive expansion the EcoFlow DELTA Pro can be customised to meet your energy requirements. Along with being the world’s fastest charging portable power station the Delta Pro boasts a whopping 3.6kWh battery. One of the many features of the EcoFlow DELTA Pro is its battery capacity, 3.6kWh which can be increased by adding additional Smart Extra Batteries. With just two Smart Extra Batteries, you can increase your battery power from 3.6kWh to a massive 10.8kWh. If you are looking for even more battery capacity the DELTA Pro can be expanded to an incredible 25kWh. Enough to power your home for 13 days of emergency power (Emergency home use: 1.88kWh/day (4 lights, fan, router, laptop, smartphone) Daily home use: 29kWh/day (based on users’ average daily electric consumption in 2019 - data provided from EcoFlow). Moving power to where you need it is an important consideration when choosing a portable power station. The EcoFlow DELTA Pro has two sturdy wheels at the rear and a telescopic handle at the front. This makes moving the DELTA Pro around a total breeze, whether it be around the house or on your outdoor adventures. The retractable handle folds away neatly at the front so you wouldn’t know it was there. The Smart Extra Batteries also has these features so you can easily move the power to where its required. Features: Battery capacity 3600Wh Fast charging LFP (Lithium iron phosphate) battery - 1.9 hours Long life span 3500 cycles to 80%+ capacity Ideal for camping, caravanning emergency backup, & home use Fast charging via mains, 12v car adapter or solar panel (optional) Specifications: Dimensions: H:28.2 x W:46.5 x D:23.6 cm Colour: Black Guarantee:2 years Material: Plastic Casing / Aluminium Chassis Model Number: ECODP