Products > Deep Cycle Batteries > Deep Cycle Power Calculator

Deep Cycle Power Calculator


calculator-icon-1-1.jpgThe size and type of Deep Cycle battery required is dependent on the application and conditions of use. It is important to ensure there is sufficient battery capacity to power the equipment being used.

List the equipment and devices you wish to power using your Deep Cycle battery - including their power consumption (in watts) and their estimated usage time (hours).

Equipment / Device

Power Consumption(Watts)

Usage Time per day(Hours)

Equipment / Device
Power Consumption (Watts)
Usage Time per day (Hours)
Equipment / Device
Power Consumption (Watts)
Usage Time per day(Hours)
Equipment / Device
Power Consumption (Watts)
Usage Time per day(Hours)
Total Watt Hours (Wh): 0 Wh
With 50% Depth of Discharge (DOD) Safety Net: 0 Wh
Converted to Ampere Hours (Ah): 0 Ah

Due to your high power requirements, a dual battery system may be required. Please contact your nearest Century retailer to discuss your requirements.

Calculate power consumption

The power consumption of a device will be listed in either Watts or Amps. This information can usually be found via a sticker on the rear of the device, a tag on the power cable, or from specifications listed on the manufacturer's website.

Convert Amps to Watts

If your device only lists the power consumption in Amps, this can easily be converted to Watts by multiplying by 12.

Example: 1.5 Amps  x  12  =  18 Watts

Use & recharging

This calculator works on the assumption of daily use, followed by a full recharge. When using a deep cycle battery across multiple days, it is important to consider the amount of power you'll need to put back into the battery to ensure continued operation.

This charge may be from the vehicle's alternator, a portable generator, or an appropriately sized solar panel.