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Which cabinet do I need?

In short

Four questions — what you store, how much of it, whether you charge in place, and which sector you are in — are usually enough to tell whether a standard cabinet covers your requirement or whether it needs specifying properly. Nothing is collected and nothing is sent until you choose to.

Step 1 of 4 What are you storing?

Damaged or waste cells behave differently from healthy ones and need to be handled separately.

Step 2 of 4 How much are you storing?

If you know the total watt-hours, use that. Otherwise count the batteries.

Step 3 of 4 Storage only, or storage and charging?

Charging inside a cabinet adds ventilation, power and supervision requirements.

Step 4 of 4 Which sector are you in?

This shapes the guidance, not the price.

How this works

The result is based on the signals that in practice separate a routine purchase from one that needs looking at: damaged or waste cells, charging in place, large total energy content, and premises with public access or sleeping accommodation. Any of those tends to mean the decision is about the site rather than about the product.

It is a starting point, not a specification, and it does not replace a fire risk assessment. If you want to understand the reasoning rather than the outcome, the underlying guidance is on how to choose a battery storage cabinet and capacity and watt-hours explained.

Frequently asked questions

Do I have to give my details to see the result?

No. The result appears on this page without any contact details. If you decide you want a specification review you can send your figures through afterwards, and that is entirely your choice.

What if I do not know my total watt-hours yet?

Choose “I do not know yet” — it is a legitimate answer and the result accounts for it. Working the figure out takes about ten minutes with the pack labels; capacity and watt-hours explained shows the arithmetic.

Is the recommendation independent?

Be appropriately sceptical: this site is published by Marzan Security Ltd, which sells cabinets, and one of the two outcomes routes to them. What we can say is that the routing is based on stated criteria rather than on margin, and that the guidance pages tell you when a cabinet is not the answer. Ownership and funding are set out on About.