FAQs & Helps

• How is a microwave rated at wattage?

  When you buy a microwave oven you should to know how intense it field is, not how much it draws from wall. So a microwave oven that boasts 600 watts.........

• Why do I need such humongous cables to battery while a small cord takes AC output fine?

  Power is volts times amps (Watts = V x A). So if you have a lot of voltages you don't need many amperes. Roughly you need 18 times as much current from 12 volt battery as you need from 220 volt AC outlet. Current is what causes cables to heat up.........

• Why would you use a 24 volt inverter instead of a 12 volt inverter?

  At a given power rating, a 24 volt inverter will need a half current as a 12 volt inverter..........

• Should I use aluminum wire, or must I use copper?

  Aluminum is cheaper and lighter, but it also has higher resistance for a given guage, and is more difficult to connect to. If you are an expert in such things,.........

• Should I use a laser printer with a UPS?

  Only if must. Laser printer uses up a surprising amount of power (due to heated rollers), and will discharge your batteries faster than you expect, even on standby.........

• How does three stages charger work?

  3 stages charger keeps batteries in the best shape with ultimate result being maximized life span. Here is how it works:.........

• Can inverter be installed on the wall?

  Can inverter be installed on the wall?.........

• Why it is so important to choose right size and length for battery cable?

  Even a 1000W inverter can only support a few hundred watts if it is connected to batteries by a small diameter or too long cables.........

• What will happen if I over load inverter/UPS than its rated power?

  To load inverter/UPS is not like to connect appliance with wall socket. You can only connect loads to inverter/UPS which do not exceed its rated power.........

• I heard that operating refrigerator or water pump can be critical for modified sine wave inverter, w...

  It is worth to mention that these appliances are typically inductive loads incorporating a motor inside which would require true sine wave inverter.........