How much can the Anker Solarbank 2 offset in an off-grid home or during a power cut?

Whether you're living completely off grid or looking for backup power during occasional power outages, having a reliable energy source is important. Robinsun recently launched the Anker Solarbank 2 Pro battery system series which provides an affordable, modular, and easy-to-install solution. In this article, we will explain how much can Solarbank 2 offset in your home when it comes to everyday appliances and critical devices.

Off grid living: A sustainable solution for remote homes

Living off-grid means you need a constant independent power supply, and traditional solutions like fuel-powered generators have significant downsides. They’re expensive to run, rely on fossil fuels, require constant refueling, and generate noise, pollution and dirt. The Solarbank 2 series presents a completely clean, quiet, and much more cost-effective alternative.

The Solarbank 2 Pro include a 1.6 kWh battery, which is sufficient to handle many basic household needs. The storage capacity can be expanded with up to 5 extension batteries, of 1,6 kWh each, reaching a total storage capacity of 9,6 kWh. With these options, the Solarbank 2 can easily cover essential appliances and devices. Normally, there are not many high power-consuming electronics in off-grid homes. Here we list some of the most common household appliances and their consumption levels.

• Lighting: Energy-efficient LED bulbs consume just 0,01 kW per hour. If you have 4 to 6 LED bulbs, running them for 5 hours would use just 0,2 to 0,3 kWh, a fraction of what the Solarbank 2 battery can store.
• Refrigerators: A key household appliance, fridges use 1,2 to 4,8 kWh per day, depending on size and efficiency. While the Solarbank 2's base battery may cover part of this, adding expansion batteries can fully support a refrigerator for daily use. Also keep in mind that during sunshine hours your appliances will consume power directly from your solar panels’ production, with no need to store it.
• WiFi routers & phones: Essential for communication, WiFi routers consume 0,12 to 0,36 kWh daily, and charging phones uses minimal power, around 0,01 to 0,02 kWh per day. These can easily be supported by the Solarbank 2.
• Small kitchen appliances: Devices like kettles, coffee makers, and toasters use between 1 to 2 kW, but since they are only run for short periods (typically 5-10 minutes), their total consumption per use is low, at 0,1 to 0,3 kWh, perfect for the Solarbank 2 to handle during off grid living. Make sure the peak consumption of these devices does not exceed 1 kWh, the output limit of the Solarbank 2 for off-grid use.
• Televisions: A TV uses 0,1 to 0,2 kWh per hour, so running it for 3-5 hours consumes just 0,3 to 1 kWh, well within the Solarbank 2’s capacity.

Adding up all the necessities above, the consumption ranges from 1,6 to 5,8 kWh per day. If you choose mostly low consumption appliances, one Solarbank 2 can potentially support your living. But if you want some entertainment or use higher consumption device like air conditioners. Solarbank can also handle these with some extension batteries.

• Air conditioners are heavy hitters when it comes to energy consumption. For window or portable units, an air conditioner can use approximately 0,5 to 2 kW. During peak summer days, it might run for 3-6 hours, leading to a daily usage of 1.5 to 12 kWh. Solarbank can offset the power consumption if you choose a relatively lower energy-consumption AC.
• Water boilers are another high consumption device. A Solarbank 2 can support such a device, assuming it doesn’t exceed 1 kWh of consumption. While you can store much more electricity, the max output of the Solarbank 2 is 1.000 W, limiting how much all connected devices can consume at the same time.

On grid with occasional power cuts: A reliable backup

For those living on grid but facing occasional power cuts, the Solarbank 2 acts as an excellent backup battery. During short-term outages, you need to ensure that key devices and appliances keep running without interruption. Even when the grid is working smoothly, you can store your surplus energy and use it during nights and save on your bills. One thing to note is that Solarbank 2 will not power your home’s grid. You will have to connect the devices you want to power to Solarbank 2’s socket when you need power.

• Essential devices: During power outages, a Solarbank 2 battery keeps essential devices like lights, WiFi, and communication devices powered. With a 1.6 kWh capacity, the Solarbank 2 can easily support essential devices like LED lighting, your router, and phone chargers for several hours, or even longer when using only the most necessary devices.
• Refrigerators: Power outages often put refrigerators at risk, but with the Solarbank 2, you can keep your fridge running for several hours to prevent food from spoiling. If you have a fridge with an average consumption of 1.2 kWh per day, the Solarbank 2 can keep it operational for at least 12 hours during a power cut.
• Entertainment and connectivity: Need to stay connected or entertained during an outage? Televisions, laptops, and phone chargers can run for several hours with a fully charged Solarbank 2 battery. For example, watching TV for 5 hours would only use less than 1 kWh.

If you experience longer power cuts or want to run larger appliances during outages, you can expand the Solarbank 2's capacity. With a maximum of 9.6 kWh expandable storage, you’ll have enough power to get through multiple days without grid power, covering essential devices and even some larger appliances.

Conclusion

Whether you’re living off grid or want reliable backup power for occasional outages, the Solarbank 2 Pro offer practical, expandable solutions that meet a wide range of energy needs. With easy setup, modular expansion, and the ability to power essential household devices and appliances, this system offers flexibility and peace of mind. Contact us via email, WhatsApp or call us directly if you have any further questions.