How Many Times Can the EcoFlow Delta 2 Charge a 20V Power Tool Battery?
Updated 2026-10-17 · Yes
The EcoFlow Delta 2 can fully charge a 20V power tool battery about 7.6 times. A typical 20V power tool battery holds 100Wh, and charging it takes roughly 115Wh once losses are included.
The numbers
| Battery capacity | 1024Wh (LFP) |
|---|---|
| Usable energy | 870Wh (85% via AC outlets) |
| Continuous AC output | 1800W |
| Surge rating | 2700W |
| 20V power tool battery | 100Wh |
| Energy per charge | 115Wh |
| Full charges | 7.6 charges |
1024Wh × 0.85 = 870Wh usable ÷ (100Wh × 1.15) = 7.6 charges
Station specs: source, checked 2026-10-17. See how we calculate runtime.
Adjust the numbers
Check the label on your 20V power tool battery and enter its real wattage.
Recharging with solar
The EcoFlow Delta 2 accepts up to 500W of solar input. In real conditions that harvests about 1.9 kWh on a sunny day (5 peak-sun hours), or about 750Wh with one 200W panel.
Tips
- A 20V 5Ah pack (DeWalt, Milwaukee, Makita) stores about 100Wh.
- The EcoFlow Delta 2 uses LiFePO4 (LFP) cells, rated for thousands of cycles, so running it down daily won’t wear it out quickly.
Other power stations running a 20V power tool battery
| Power station | Capacity | Output | Charges | Verdict |
|---|---|---|---|---|
| EcoFlow River 2 Pro | 768Wh | 800W | 5.7 charges | Yes |
| Anker SOLIX C800 Plus | 768Wh | 1200W | 5.7 charges | Yes |
| Jackery Explorer 1000 | 1002Wh | 1000W | 7.4 charges | Yes |
| DJI Power 1000 | 1024Wh | 2200W | 7.6 charges | Yes |
| Anker SOLIX C1000 | 1056Wh | 1800W | 7.8 charges | Yes |
| Jackery Explorer 1000 v2 | 1070Wh | 1500W | 7.9 charges | Yes |
| Bluetti AC180 | 1152Wh | 1800W | 8.5 charges | Yes |
| Jackery Explorer 1000 Plus | 1264Wh | 2000W | 9.3 charges | Yes |
FAQ
How long does the EcoFlow Delta 2 take to recharge with solar?
With its maximum 500W of solar input it refills in about 2.7 hours of strong sun. With a single 200W panel, expect about 6.8 hours of full sun.