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Buying guides & how-tos

Independent, jargon-free guides to help you size, install, and maximize your energy storage investment.

SizingBeginner

How to Size a Home Battery for Solar

Calculate daily kWh, backup days, and inverter compatibility before you buy a LiFePO4 home battery.

8 min read

ChemistryBeginner

Compare cycle life, safety, cost, and energy density for residential solar batteries.

6 min read

Buying guideIntermediate

Our Energy Score methodology — efficiency, warranty, compatibility, and value — explained.

7 min read