When you decide to buy an inverter for those days that Eskom have load shedding so that you don’t have to sit in the dark, here are some useful things to keep in mind.
1. First make a list of all the appliances that you want to run from the inverter.
2. Now look on each of the appliances for the service tag. This will contain the necessary information that you need like the Amps on the appliance; for example 1.5A or 1.5Amps. Write it down next to each appliance. Now you need to do the following: Take your voltage, multiply it by the Amps and that equals the Watts. (220V x 1.5A = 33W).
3. Now that you have worked out the Watts for all of your appliances, count it all together and this will give you the size of the inverter you need.
4. When you buy your inverter it can have 2 x 12V batteries or a 24V battery. It’s best to have two batteries connected in parallel to each other and then to your inverter. This just helps with the load on one battery, and if one runs out you have a backup battery connected that takes over on the load for longer use.
5. Make sure all connections are safe and secure, its still electricity you’re dealing with after all!
6. To recharge your inverter you can connect a battery charger or a solar panel. This will keep your inverter ready to go for when the lights go off.
7. Make sure your inverter and batteries are in a dry and cool area, out of the weather. Make sure it’s out of the way of children and pets. Never let your batteries and inverter stand on the ground without an insolation between it and the ground.
8. The best way to bring down your watts in your house will be to install LED lights. Have a look at the difference between LED, Incandescent and compact fluorescent lights. http://nvmypower.co.za/led-lights-vs-incandescent-light-bulbs-vs-cfls-compact-fluorescent/
So to recap on things you need:
1x Inverter to your watts usage.
2x 12 Volt batteries or higher.
1x Solar panel to charge your batteries (Recommended).
1x Battery charger if you don’t want to use a solar panel.
1x Isolation board to lift your inverter and batteries of the ground.
Secure connections between your inverter and batteries.
Save power by replacing all lights with LED lights.