Our range of high quality leisure batteries are engineered with the latest technology providing more power and capacity to with stand deep discharging and heavy charging.
PLEASE NOTE: Batteries are for collection only.
Selecting The Right Battery
Our range of Leisure batteries have been designed to give you the right power for your specific use and demands. Select a battery with a high enough Ah (Ampere Hour) capacity to meet Ah power demands and leave a little in reserve. Excessive load on a smaller battery will severely affect its recharge times and battery life. An example below to show how to calculate and select the right Ah capacity battery.
There is a simple equation you can use to estimate the size of battery or battery bank you require.
- Divide the power consumption in watts by the battery Voltage, this gives you the number of Amps you require.
- Then multiply the number of Amps by the length of time you require the battery to last for between charging.
- This gives you the total number of amps required, you can build this up on a table similar to the one below to allow you to estimate the size of battery of battery bank you need.
- Then add 30% onto your calculation as margin of safety for varying usages.
|
Item
|
Consumption
in Watts
|
Voltage
|
Current
|
Hours
in use
|
Capacity
required
|
30% Safety
Margin
|
|
Fluorescent light
3 x 8W
|
24 W
|
12 V
|
2 A
|
7 hrs
|
14 Ah
|
18.2 Ah
|
|
Refrigerator
|
60 W
|
12 V
|
5 A
|
4 hrs
|
20 Ah
|
26 Ah
|
|
Portable B&W TV
|
30 W
|
12 V
|
2.5 A
|
8 hrs
|
20 Ah
|
26 Ah
|
|
|
|
|
|
|
|
|
|
Total Consumption
|
70.2 Ah
|
|
Recommendation: Use 1 x 75Ah Leisure Battery
|
