This handy tool helps you to estimate the electrical usage on a typical day in your van. By considering the appliances you want to be able to run, you can predict what battery capacity you will need. This helps you to make a more informed decision about which battery type and battery size is best for you.
 
This tool helps to provide an estimate. All appliances vary and accuracy cannot be guaranteed. Seek advice when installing electrics if you do not feel safe and competent to do so.