EcoFlow Delta Pro Portable Power Station vs EcoFlow DELTA 3800 Gen4

Both are 3.6kWh-class LFP power stations with 3,600W continuous and 7,200W surge output, so the choice comes down to expandability and charging speed. The DELTA Pro scales to 25kWh and accepts up to 1,600W of solar, which suits whole-home backup and off-grid setups. The DELTA 3800 Gen4 caps at 12kWh but takes 2,000W of solar and has a sub-10ms UPS transfer, which suits sensitive electronics and faster solar recharge. Owners of the Pro praise the capacity expansion and app control; the 3800 Gen4 is newer and less proven in the field.

• Choose the DELTA Pro if you want to grow capacity toward whole-home backup, run heavy loads through X-Boost, or charge from a large solar array.
• Choose the DELTA 3800 Gen4 if you need fast solar input, tight UPS switching for computers and networking gear, and a lighter unit.