How Many Times Can the Vtoman FlashSpeed 1500 Charge a Laptop?
Updated 2026-10-17 · Yes
The Vtoman FlashSpeed 1500 can fully charge a laptop about 21 times. A typical laptop battery holds 60Wh, and charging it takes roughly 69Wh once losses are included.
The numbers
| Battery capacity | 1548Wh (LFP) |
|---|---|
| Usable energy | 1424Wh (92% via 12V/USB DC output) |
| Continuous AC output | 1500W |
| Surge rating | 3000W |
| Laptop battery | 60Wh |
| Energy per charge | 69Wh |
| Full charges | 21 charges |
1548Wh × 0.92 = 1424Wh usable ÷ (60Wh × 1.15) = 20.6 charges
Station specs: source, checked 2026-10-17. See how we calculate runtime.
Adjust the numbers
Check the label on your laptop and enter its real wattage.
Recharging with solar
The Vtoman FlashSpeed 1500 accepts up to 400W of solar input. In real conditions that harvests about 1.5 kWh on a sunny day (5 peak-sun hours), or about 750Wh with one 200W panel.
Tips
- A typical laptop battery holds 50–70Wh. Charging over USB-C PD is more efficient than using the laptop's AC brick.
- Running it from the Vtoman FlashSpeed 1500’s DC port instead of the AC outlet avoids inverter losses: about 108Wh more usable energy.
- The Vtoman FlashSpeed 1500 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 laptop
| Power station | Capacity | Output | Charges | Verdict |
|---|---|---|---|---|
| Jackery Explorer 1000 Plus | 1264Wh | 2000W | 17 charges | Yes |
| Goal Zero Yeti 1500X | 1516Wh | 2000W | 20 charges | Yes |
| Jackery Explorer 1500 v2 | 1536Wh | 2000W | 20 charges | Yes |
| Jackery Explorer 2000 Plus | 2042Wh | 3000W | 27 charges | Yes |
| EcoFlow Delta 2 Max | 2048Wh | 2400W | 27 charges | Yes |
| Anker SOLIX F2000 | 2048Wh | 2400W | 27 charges | Yes |
| Bluetti AC200L | 2048Wh | 2400W | 27 charges | Yes |
| Bluetti AC200MAX | 2048Wh | 2200W | 27 charges | Yes |
FAQ
How long does the Vtoman FlashSpeed 1500 take to recharge with solar?
With its maximum 400W of solar input it refills in about 5.2 hours of strong sun. With a single 200W panel, expect about 2.1 sunny days (10 hours of full sun).