The EcoFlow Delta 2 Max has a 2,048 Wh LFP (lithium iron phosphate) battery that EcoFlow rates for 3,000+ cycles. In my testing, it provided around 1,800 Wh of usable capacity from a full charge. This is enough to power a mini fridge for 2 days or a CPAP machine for 4-5 nights of camping. It can also power an RV air conditioner for...