| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
Q: What are the main differences between modified and pure sine wave power inverters?A: Modified sine wave inverters are cheaper, they still work but some devices like TV’s will make a buzz sound, microwaves won’t run at full power, aircons will mimic a ‘’wave sound”. Pure sine wave is the same as Eskom power’s wave forms. Compressors , pumps, microwave and refrigerators highly recommends pure sine wave.
Q: What does inverter efficiency mean?A: Inverters have different efficiency ratings in short it is at what capacity (%) of rated power it can run continuously. E.g. a 1000 watt (1kw) inverter with a 50 % rating will run 500 watt continuously without getting warm or cutting out.
Q: what is better solar or 220 volt charger?A: solar is very expensive +- R 3000 per panel per battery and if you don’t have good sun the day you don’t get a good charge.
Q: should I go 12 volt, 24 volt or 48 volts?A: for basic TV, led lights and camping definitely 12 volt. For running industrial motors, high kilowatt items definitely 24 or 48 volts. Drawback – The higher the volts the more batteries, the more expensive the charger etc. but the less the energy losses.
Q: what is a rough formula for me to work out how many batteries I will need or how long batteries will last and what size inverter I will need?A: a very rough formula is to take the watts of the items you want to run as per example below Led TV +- 250 watt 10 x 10 watt led lights = +- 100 watt Dstv decoder +- 250 watt Total watts +- 600 watt . Batteries 12 volt 102 amp hour (AH). Inverter = +- watts x 2 = minimum size inverter for this example 1200 watts = recommended 1500 watt or 1.5 kw inverter. 600 watts / 12 = 50. 102 ah battery / 50 = 2. To run the above for +- 2 hours you will need 1 battery.
Q: what are the main purpose of inverters, how do they differ from generators?A: inverters are basically the same principal as a generator, but no diesel, no fumes and no noise. An inverter converts battery power 12 – 48 volt to normal 220 volt 50 Hz home power. They are used mostly for emergencies like load shedding, for camping and in some cases to go off grid.
Q: a basic unit that can run my TV, decoder, laptop and a few lights for 2 to 3 hours during load shedding, what is the cost and what do I need?A: once again laptop +- 350 watt, 10 led lights +- 100 watt, TV +- 200 watt, decoder +- 250 watt = total usage +- 900 watt = recommended 2 kw inverter + . (900 / 12 = 75) 102 ah / 75 = 1.3 – one battery will run the above for roughly 1.3 hours. 2 batteries will run roughly for 2.7 hours. 3 batteries (102x3 = 306 ah / 75 = 3 batteries will run roughly for 4 hours)
Q: I want to run my kettle and geyser and microwave with fridges, lights and other appliances, what do I need?A: it is not recommended to run high wattages units on inverters but can be done. Geyser +- 3000 watt, kettle +- 2200 watt, microwave +- 1100 watts, = 6300 watts or 6.3 kilowatt thus at least a 12 kw inverter to run them all together and at least 24 volts. Keep in mind that 6000 watts running continuously will drain batteries very fast. Example 6000 / 12 = 500. Running these items continues a 102 ah battery will last only 10 – 20 minutes. Where a TV and 5 led lights will run 5 hours on the same battery. Also remember some pumps, refrigerators, washing machines may use up to 10 times their wattage at start up.
Q: Can I add more batteries later?A : yes it is very easy to add additional batteries later on.
Q : I purchased an inverter from another manufacturer, when everything is on it gives an overload beep, can you assist?A: it might be a very low efficiency inverter or you might have something on like a geyser, swimming pool pump , kettle, iron that takes a lot of power. Normal globes of 100 watt all over the house can take 1000 watt without realizing it. Inspect all plugs and switches and lights. some items have very high starting volts
Q: what is the difference between having 1 battery or 10?A: 10 batteries will draw the same load x 10 longer than 1 battery – that is the only difference, will also charge 10 times longer.
Q: Does the inverter have built- in charger?A: No, we can supply those as well but prefer the 8 stage intelligent battery charger and conditioner separately. Most build in chargers only do a 1 – 3 stage charge.
Always check that the items you are about to run have a smaller start up than the maximum rating of the inverter. Also make sure that your continues load watts x 2 = + - inverter continues rating to ensure long life and cool running.
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