Add-ons
Add-ons for your power station
More capacity, solar and charging on the road, from BLUETTI, EcoFlow and ALLPOWERS.
Extra batteries
BLUETTI B300K Expansion Battery
2,765 Wh extra capacity
Works with the AC200L and Apex 300
Check price at BLUETTI for the BLUETTI B300K Expansion BatteryPaid link
BLUETTI B500K Expansion Battery
5,120 Wh extra capacity
Works with the AC200L and Apex 300
Check price at BLUETTI for the BLUETTI B500K Expansion BatteryPaid link
EcoFlow RIVER 3 Plus Smart Extra Battery (EB300)
286 Wh extra capacity
Works with the RIVER 3 Plus
Check price at EcoFlow for the EcoFlow RIVER 3 Plus Smart Extra Battery (EB300)Paid link
EcoFlow DELTA 2 Max Smart Extra Battery
2,048 Wh extra capacity
Works with the DELTA 2 Max
Check price at EcoFlow for the EcoFlow DELTA 2 Max Smart Extra BatteryPaid link
EcoFlow DELTA 3 Max Plus Smart Extra Battery
2,048 Wh extra capacity
Works with the DELTA 3 Max Plus
Check price at EcoFlow for the EcoFlow DELTA 3 Max Plus Smart Extra BatteryPaid link
Batteries in a table
| 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 BLUETTI for the BLUETTI B300K Expansion BatteryPaid link |
 BLUETTI B500K Expansion Battery | AC200L, Apex 300 | 5,120 Wh | $1,999 | $0.39 | Check price at BLUETTI for the BLUETTI B500K Expansion BatteryPaid link |
 EcoFlow RIVER 3 Plus Smart Extra Battery (EB300) | RIVER 3 Plus | 286 Wh | $159 | $0.56 | Check price at EcoFlow for the EcoFlow RIVER 3 Plus Smart Extra Battery (EB300)Paid link |
 EcoFlow DELTA 2 Max Smart Extra Battery | DELTA 2 Max | 2,048 Wh | $899 (sold out) | $0.44 | Check price at EcoFlow for the EcoFlow DELTA 2 Max Smart Extra BatteryPaid link |
 EcoFlow DELTA 3 Max Plus Smart Extra Battery | DELTA 3 Max Plus | 2,048 Wh | $859 | $0.42 | Check price at EcoFlow for the EcoFlow DELTA 3 Max Plus Smart Extra BatteryPaid link |
Makers’ specs and US store prices, Oct 23, 2026. Each station page shows its runtime with the battery added.
Solar panels
Lowest price per watt here. All 11 panels, with sun hours to refill each station: solar panels for power stations.
ALLPOWERS SE200 Solar Panel
200 W foldable
$0.69 per W
Check price at ALLPOWERS for the ALLPOWERS SE200 Solar PanelPaid link
ALLPOWERS SE100 Solar Panel
100 W foldable
$0.70 per W
Check price at ALLPOWERS for the ALLPOWERS SE100 Solar PanelPaid link
ALLPOWERS SP039 Solar Panel
600 W foldable
$0.81 per W
Check price at ALLPOWERS for the ALLPOWERS SP039 Solar PanelPaid link
Charging while you drive
EcoFlow 800W Alternator Charger
800 W car charger
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).
Check price at EcoFlow for the EcoFlow 800W Alternator ChargerPaid link
EcoFlow 500W Alternator Charger
500 W car charger
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.
Check price at EcoFlow for the EcoFlow 500W Alternator ChargerPaid link
BLUETTI Charger 2
1,200 W car + solar car charger
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).
Check price at BLUETTI for the BLUETTI Charger 2Paid link
Makers’ claims, not our math. The station’s own input limit still applies. Prices Oct 23, 2026. Photos: the makers.
Chargers in a table
| 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 EcoFlow for the EcoFlow 800W Alternator ChargerPaid 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 EcoFlow for the EcoFlow 500W Alternator ChargerPaid 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 BLUETTI for the BLUETTI Charger 2Paid 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.