Add-ons
Add-ons for your power station
More capacity, solar and charging on the road, from BLUETTI, EcoFlow and ALLPOWERS.
Extra batteries
| Battery | Works with (here) | Capacity | Price | $ per Wh | Store |
|---|---|---|---|---|---|
 BLUETTI B300K Expansion Battery | AC200L, Apex 300 | 2,765 Wh | $1,199 | $0.43 | Check price at BLUETTIPaid link |
 BLUETTI B500K Expansion Battery | AC200L, Apex 300 | 5,120 Wh | $1,999 | $0.39 | Check price at BLUETTIPaid link |
 EcoFlow RIVER 3 Plus Smart Extra Battery (EB300) | RIVER 3 Plus | 286 Wh | $159 | $0.56 | Check price at EcoFlowPaid link |
 EcoFlow DELTA 2 Max Smart Extra Battery | DELTA 2 Max | 2,048 Wh | $899 (sold out) | $0.44 | Check price at EcoFlowPaid link |
 EcoFlow DELTA 3 Max Plus Smart Extra Battery | DELTA 3 Max Plus | 2,048 Wh | $859 | $0.42 | Check price at EcoFlowPaid link |
Makers’ specs and US store prices, Oct 23, 2026. Each station page shows its runtime with the battery added.
Solar panels
11 panels with sun hours to refill each station: solar panels for power stations. Lowest price per watt: ALLPOWERS SE200 Solar Panel ($0.69), ALLPOWERS SE100 Solar Panel ($0.70), ALLPOWERS SP039 Solar Panel ($0.81).
Charging while you drive
| Charger | Rated | The maker says | Price | Store |
|---|---|---|---|---|
 EcoFlow 800W Alternator Charger | 800 W | Charges a DELTA 2 Max in about 2.6 hours of driving, with the included XT150 cable; other stations may need an XT60 cable or EcoFlow’s custom-fit output cable (sold separately). | $269 | Check price at EcoFlowPaid link |
 EcoFlow 500W Alternator Charger | 500 W | Tops up 1 kWh in about 2.1 hours of driving; comes with an XT60 cable for EcoFlow RIVER and DELTA models and most other brands. | $199 | Check price at EcoFlowPaid link |
 BLUETTI Charger 2 | 1,200 W car + solar | Works with all BLUETTI power stations and most other brands; up to 600 W of 12/24 V output through BLUETTI’s DC Hub (sold separately). | $449 | Check price at BLUETTIPaid link |
Makers’ claims, not our math. The station’s own input limit still applies. Prices Oct 23, 2026.
Prices change often; the store’s checkout price applies. We don’t test products.
“Paid link” = we earn a commission. Same math either way. See how we make money.