---
title: Custom Charging - How do I find out what SoC (State of Charge) I need and when the ZEB should charge?
description: Set Custom Charging based on your heating needs. Use off-peak periods to charge fully, then top up if needed to ensure optimal heating and minimise losses.
---

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September 14, 2026

# Custom Charging - How do I find out what SoC (State of Charge) I need and when the ZEB should charge?

## Learn how to set up Custom Charging for your ZEB, choose the best times to charge, maximise low-cost tariffs, and meet your heating needs efficiently.

To set up Custom Charging, decide when and how much the ZEB should charge based on your personal heating needs. The recommendations below will help you make that decision.

Start by using the cheapest period of your tariff to charge the ZEB to the maximum (100%).

If the ZEB does not meet your heat demand later in the day, introduce an additional charging slot to top up the ZEB when it is low on charge.

The thermal insulation of the ZEB is very good, but not perfect. To minimise heat lost while the ZEB is idle, set your charging slots as close as possible to the times you know you will need heating.

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