The difference that matters
The EcoFlow RIVER 2 Max 500 Portable Power Station lists LiFePO4 chemistry; the other lists NMC lithium-ion. The EcoFlow RIVER 2 Max 500 Portable Power Station is lighter (13.2 lb vs 16.8 lb).
Side by side
| Specification | EcoFlow RIVER 2 Max 500 Portable Power Station | FlashFish P60 Portable Power Station |
|---|---|---|
| Brand | EcoFlow | Flashfish |
| Battery capacity | 499 Wh | 520 Wh |
| Continuous AC output | 500 W | 500 W |
| Surge output (as stated) | — | — |
| Battery chemistry | LiFePO4 | NMC lithium-ion |
| Cycle life | 3,000 cycles | 800 cycles |
| Solar input (as stated) | 220 W | — |
| AC charging input | 660 W | — |
| Weight | 13.2 lb | 16.8 lb |
| Warranty | — | 1 Year Hassle-Free Warranty |
| Usable energy (Wattstanding calc, 85%) | 424 Wh | 442 Wh |
| Refrigerator runtime (calc) | 7.1 h | 7.4 h |
| Price per kWh of storage (calc) | $619 | $556 |
| Price seen | $309 | $289 |
| Sellers | 1 | 1 |
Highlighted rows differ. Figures come from each product's sources; runtime, recharge and cost rows are Wattstanding calculations using the same method for both.
Which should you choose?
EcoFlow RIVER 2 Max 500 Portable Power Station
Choose the EcoFlow RIVER 2 Max 500 Portable Power Station if you want LiFePO4 for long-term standby use or you will carry it often.
FlashFish P60 Portable Power Station
Choose the FlashFish P60 Portable Power Station if you prefer its maker, seller or ecosystem — the published figures do not favour it.
Before you buy either
- Total your loads with the appliance load & runtime calculator.
- Confirm what each seller includes — accessories, software trials and bundles change often.
- Read the limitations on each full reference page.
Wattstanding compares published specifications; we have not tested these products side by side. How we work · Disclosure