12 V fridge runtime · EcoFlow RIVER 3 Plus
How Long Will an EcoFlow RIVER 3 Plus Run a 12 V Fridge?
About 20.3 h for a Dometic CFX3 35 on a hot day (12 W), by our math: 286 Wh × 0.85 ÷ 12 W.
| Spec | EcoFlow RIVER 3 Plus |
|---|---|
| Battery | 286 Wh (maker spec) |
| Usable (× 0.85) | 243 Wh |
| Output / surge | 600 W / 1,200 W |
| Own draw | not listed |
| Solar input | 220 W |
| Price | $299 at EcoFlow |
Check RIVER 3 Plus price at EcoFlowPaid linkRIVER 3 Plus on AmazonPaid link
12 V fridge hours on the RIVER 3 Plus
| Case | Watts | On the RIVER 3 Plus |
|---|---|---|
| Dometic CFX3 35 on a hot day (Dometic) | 12 W | 20.3 h |
Wh × 0.85 ÷ (watts + the station’s own draw, where the maker lists it).
Dometic lists 0.98 Ah per hour at 12 V with a 90°F room. These hours use our AC math; on the 12 V outlet the fridge skips the inverter, so it can run longer.
Keeping it going with solar
A day with a Dometic CFX3 35 on a hot day uses about 288 Wh, about 339 Wh from the battery. At the RIVER 3 Plus’s 220 W solar input and our 75% assumption, that is more than the 286 Wh battery holds, so the battery alone won’t cover it; a full charge from empty takes about 1.7 hours of strong sun. See solar recharge time.
12 V fridge on similar stations
| Station | Capacity | Dometic CFX3 35 on a hot day | Price |
|---|---|---|---|
| BLUETTI Elite 30 V2 | 288 Wh | 11.7 h | $289.99 |
| Jackery Explorer 600 v2 | 640 Wh | 45.3 h | $499 |
| Anker SOLIX C1000 Gen 2 | 1,024 Wh | 3 days | $499.99 |
| BLUETTI Elite 100 V2 | 1,024 Wh | 39.6 h | $489 |
Maker prices, Oct 26, 2026, unless dated. Checkout price applies.
More: EcoFlow RIVER 3 Plus specs and every runtime · 12 V fridge runtime on every station · calculator for your own devices.
Quick answers
How long will the EcoFlow RIVER 3 Plus run a 12 V fridge?
About 20.3 h for a Dometic CFX3 35 on a hot day (12 W), by our math: 286 Wh × 0.85 ÷ 12 W.
How long does the EcoFlow RIVER 3 Plus take to recharge with solar?
About 1.7 hours of strong sun from empty at its 220 W solar input, by our 75% assumption; clouds and winter sun add time.
“Paid link” = we earn a commission. Same math either way. See how we make money.