How Long Will the Vtoman FlashSpeed 1500 Run a Wi-Fi Router and Modem?
Updated 2026-10-17 · Yes
The numbers
| Battery capacity | 1548Wh (LFP) |
|---|---|
| Usable energy | 1424Wh (92% via 12V/USB DC output) |
| Continuous AC output | 1500W |
| Surge rating | 3000W |
| Wi-Fi router and modem running watts | 20W |
| Startup watts | 20W |
| Average draw | 20W |
| Estimated runtime | 3 days |
| Energy per day of typical use | 480Wh |
1548Wh × 0.92 = 1424Wh usable ÷ 20W average = 71.2 hours
Station specs: source, checked 2026-10-17. See how we calculate runtime.
Adjust the numbers
Check the label on your Wi-Fi router and modem 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.
Solar can keep up. A Wi-Fi router and modem uses about 480Wh a day at 24 hours of use, so with enough panels and good sun the Vtoman FlashSpeed 1500 can run it indefinitely.
Tips
- Keeping internet up during an outage costs very little power, as long as your ISP's equipment down the street still has power too.
- 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 Wi-Fi router and modem
| Power station | Capacity | Output | Runtime | Verdict |
|---|---|---|---|---|
| Jackery Explorer 1000 Plus | 1264Wh | 2000W | 2.4 days | Yes |
| Goal Zero Yeti 1500X | 1516Wh | 2000W | 2.9 days | Yes |
| Jackery Explorer 1500 v2 | 1536Wh | 2000W | 2.9 days | Yes |
| Jackery Explorer 2000 Plus | 2042Wh | 3000W | 3.9 days | Yes |
| EcoFlow Delta 2 Max | 2048Wh | 2400W | 3.9 days | Yes |
| Anker SOLIX F2000 | 2048Wh | 2400W | 3.9 days | Yes |
| Bluetti AC200L | 2048Wh | 2400W | 3.9 days | Yes |
| Bluetti AC200MAX | 2048Wh | 2200W | 3.9 days | Yes |
FAQ
Will the Vtoman FlashSpeed 1500 run a Wi-Fi router and modem overnight?
Yes. Eight hours uses about 160Wh, roughly 11% of the Vtoman FlashSpeed 1500’s usable capacity.
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).