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 choose a home battery: a step-by-step guide

Choosing a home battery means weighing capacity, installation type, technology, safety, warranty and lifespan, not price.

05/10/2026

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Choosing a Home Battery for a Home With a Heat Pump and an EV

A buying guide for homes with a heat pump and an electric car: why the tariff comes first, how to think about kW and kWh, and what to ask installers.

02/10/2026

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Second-Hand and Refurbished Home Batteries: What to Check Before You Buy

A used or refurbished home battery can look like a bargain. These are the questions on history, warranty and installation that decide if it is a safe buy.

23/09/2026

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How to Pay for a Home Battery in the UK: Cash, Finance and VAT

Cash, a loan or installer finance? What to compare in a deal, how to protect your money, how the 0% VAT rate works and which schemes exist.

18/09/2026

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Portable power station for camping versus home backup: which one do you need

A portable power station suits camping and small power-cut needs. Whole-home backup is a different, installed system. Here is how to choose.

13/09/2026

Rows of blue solar panels on a grey metal roof

Adding a battery to existing solar panels: what to check first

Retrofitting a battery to solar you already own is not plug and play. Check your inverter, export tariff, grid paperwork and usage before you buy.

08/09/2026

How to Judge a Home Battery Brand: Support, Warranty Backing and Track Record

How to assess a home battery brand without testing it yourself: UK support, who honours the warranty, software updates, documents, markings and track record.

02/09/2026

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How to compare three home battery installer quotes like for like

Three quotes rarely list the same things. Here is how to line up capacity, power, warranty, backup and inclusions so the comparison is fair.

26/08/2026

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What size home battery do I need? (kWh explained)

Choosing the right home battery size depends on daily energy use, solar production, and household power goals.

17/08/2026

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Best time of year to buy and install a home battery

There is no magic month for a home battery. Here are the seasonal factors and the dates that genuinely matter, and the sales deadlines that do not.

16/08/2026

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How much does a home battery cost in the UK?

Home battery costs vary based on capacity, brand, and installation type, ranging from plug-in to fixed systems.

13/08/2026

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Home Battery Sales Pitches: Red Flags and What to Check Before You Sign

How to spot pressure selling when a home battery is pitched at your door or by phone, and which UK checks to make on the firm and the contract before signing.

07/08/2026