How Many Times Can the EcoFlow Delta 2 Max Charge a 20V Power Tool Battery?
Updated 2026-10-17 · Yes
The EcoFlow Delta 2 Max can fully charge a 20V power tool battery about 15 times. A typical 20V power tool battery holds 100Wh, and charging it takes roughly 115Wh once losses are included.
The numbers
| Battery capacity | 2048Wh (LFP) |
|---|---|
| Usable energy | 1741Wh (85% via AC outlets) |
| Continuous AC output | 2400W |
| Surge rating | 4800W |
| 20V power tool battery | 100Wh |
| Energy per charge | 115Wh |
| Full charges | 15 charges |
2048Wh × 0.85 = 1741Wh usable ÷ (100Wh × 1.15) = 15.1 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 Max accepts up to 1000W of solar input. In real conditions that harvests about 3.8 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 Max 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 |
|---|---|---|---|---|
| Bluetti AC180 | 1152Wh | 1800W | 8.5 charges | Yes |
| Jackery Explorer 1000 Plus | 1264Wh | 2000W | 9.3 charges | Yes |
| Goal Zero Yeti 1500X | 1516Wh | 2000W | 11 charges | Yes |
| Jackery Explorer 2000 Plus | 2042Wh | 3000W | 15 charges | Yes |
| Anker SOLIX F2000 | 2048Wh | 2400W | 15 charges | Yes |
| Bluetti AC200L | 2048Wh | 2400W | 15 charges | Yes |
| Bluetti AC200MAX | 2048Wh | 2200W | 15 charges | Yes |
| EcoFlow Delta Pro | 3600Wh | 3600W | 27 charges | Yes |
FAQ
How long does the EcoFlow Delta 2 Max take to recharge with solar?
With its maximum 1000W of solar input it refills in about 2.7 hours of strong sun. With a single 200W panel, expect about 2.7 sunny days (14 hours of full sun).