or 500 watt-hours. If you’re looking for a home-powering backup for power outages, look for a model with at least 3,000Wh, and I recommend 500 watts (minimum) of solar panels for recharging.

A solar installation's “cost per watt” is a little like the “price per square foot” when you buy a house. It helps compare the value of solar energy systems in different sizes. Expect the ...

Since the batteries can be recharged using any wall outlet and 500-watt charger or portable solar panels in three hours or less, it's a reliable system, whether you're on the road or weathering a ...