Buying Guides

Everything you need to know before you buy a home battery: how to choose one, what size you need, what it really costs and which installer to trust. Independent, with honest payback numbers.

Independent & unbiased
Real UK numbers
No sales pitch

Illustration of three product comparison cards with ticks, the middle one highlighted

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How to Read a Home Battery Datasheet: The Numbers That Matter

A home battery datasheet packs in dozens of numbers. Which ones decide real-world performance, which need a second look, and what to ask when they are missing.

01/08/2026

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Modular or Single-Unit Home Battery: How Much Room to Expand?

Should you buy an expandable home battery or one fixed unit? How expansion works from Tesla, GivEnergy and Fogstar, and what to check before you add modules.

27/07/2026

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Home Battery Options for Flats and Rented Homes in the UK

No roof, no garage or a landlord to ask? Realistic home battery options for UK flats and rented homes, and what we could not confirm.

23/07/2026

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Smart Export Guarantee and a Home Battery: How to Choose a Tariff

How to pick a Smart Export Guarantee tariff when you have a home battery: fixed or variable rates, meter rules, and what to ask a supplier before signing.

17/07/2026