How it works

Register, match, buy, and we keep watching.

We pick a plug-in battery for a flat or rented home, match it to a tariff that rewards charging overnight and discharging at peak, then watch the market and tell you when a better tariff comes along.

1. 1

   Tell us your postcode and smart meter status.

   Two minutes, no billing details. This tells us which tariffs you're eligible for.

2. 2

   We match you to a tariff.

   We show tariffs with a real gap between the cheap overnight rate and the expensive peak rate, the kind that make a battery worth having.

3. 3

   You buy the battery and switch tariff.

   Buy through our Amazon link, switch through the supplier's link. Both are yours, we don't hold either.

4. 4

   We keep checking the market.

   Roughly once a week. If a better eligible tariff appears, you get an email with the saving and a link to move.