A solar generator (see What Is A Solar Generator?) can run for up to seven days on a single charge if the battery storage capacity is large enough. Most residential solar generators will have a battery that is measured in Watt-hours. This unit of measurement calculates the number of hours the generator can power a device of specific and known wattage.
For example, a solar generator that can charge to 400 Watt-hours would be able to power a 100 Watt device for four hours or a 400 Watt device for one hour. Different generators will have varying size batteries and, thus, various capacities.
Larger solar generators may be able to power a full-size refrigerator for up to 36 hours, while smaller devices may only be able to power a television for a few hours. Solar generators can also be used to charge devices like mobile phones, tablets, or laptops. Large solar generators can give a laptop up to 98 charges, while a smaller solar generator may only be able to charge a mobile phone up to 16 charges.
For most mid-sized solar generators, proper use and careful rationing can allow a fully charged lithium ion battery to last for up to seven days on a single charge. The solar generator may be able to sustain one small appliance and a few occasional mobile device charges during this period.
Understand that even the most capable solar generator will have limitations and cannot fully support a single large-scale appliance long-term, let alone have enough power to support an entire home (find more info here: Can a Solar Generator Power a House?). Although lithium ion batteries are powerful, they do have limitations.
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