Anker SOLIX C2000 Gen 2: how long it runs

What it runs

• Average fridge21.9 h70.4 W
• Modem + router3.6 days11 W
• 4 LED bulbs40.5 h34 W
• CPAP, humidifier on2.3 days22 W
• Laptop29.5 h50 W
• Starlink Standard20.7 h75 W
• TV, 55 inch16.6 h96 W
• Electric blanket16 h100 W
• Microwave1.6 h1,100 W

Each device on its own: 2,048 Wh × 0.85 ÷ (watts + 9 W own draw). Several at once: add the watts, or use the planner.

Every number, with sources

Runtime at steady loads

Load	Runtime
50 W	29.5 h
100 W	16 h
200 W	8.3 h
500 W	3.4 h
1,000 W	1.7 h
1,500 W	1.2 h

2,048 Wh × 0.85 ÷ (load + 9 W).

Devices, one at a time

Device	Draw	Runtime
Modem + router (NRDC)	11 W	3.6 days
4 LED bulbs (Philips)	34 W	40.5 h
CPAP, humidifier on (ResMed)	22 W	2.3 days
Laptop (Virginia Tech)	50 W	29.5 h
Starlink Standard (Starlink)	75 W	20.7 h
TV, 55 inch (ENERGY STAR)	96 W	16.6 h
Electric blanket (Penn State)	100 W	16 h
Microwave (Penn State)	1,100 W	1.6 h

Each on its own. Several at once: add the watts, or use the calculator.

Fridges

Fridge	Average	Runtime
Efficient 18 cu ft (ENERGY STAR)	42 W	34.1 h
Average US fridge (EIA)	70.4 W	21.9 h
Large 26 cu ft (ENERGY STAR)	80.8 W	19.4 h

From the specs

CPAP users: follow your doctor’s and the device maker’s advice on backup power.

Motors and solar

4,000 W peak, per Anker SOLIX. Some fridges need two to three times their running power to start (Anker), some compressors two to four times (BLUETTI); check yours. Own draw: about 9 W (Anker), included in every runtime here.

Solar: up to 800 W, about 3.4 sun hours to full by our math.

Nearest in size

Quick answers