Portable Solar Generator | Electronics
Portable Solar Generator
Phone: +61 406 122 305
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22.01.2022 Using an MPPT charge controller with the 300 watt Pure Sine Wave Inverter. The Maximum Power Point Tracking charge controller produces more current than a PWM Pulse Width Modulation charge controller. Because .. it has far more sophisticated electronics that will convert any excess voltage into current (amps) to charge your battery and power your devices. Click photos for more info.
16.01.2022 Make a portable 20Amp Solar Charger
14.01.2022 Solar powered outdoor office. In this pic you can see on the right, on the little table, on the left side is a portable hard drive with built in WIFI, one lead is charging the device, the other lead goes to the computer. On the right side of the table is a small stereo with a USB stick plugged into it. It is plugged into the powerboard below the battery pack. Above the battery pack is the charge controller and Inverter. You can see a little blue thing below the Inverter. It i...s connected to the MPPT charge controller via the brown cable. It is a WIFI controller for the MPPT charge controller. You can download the app to your smart phone or tablet to control the MPPT charger. You can set times for turning on power (to outdoor lights at night for example) or other settings directly from your phone. Everything in this photo, the computer, the stereo and WIFI HDD are all powered by the small solar panel in the background behind the laptop. The little stereo kicks out the sound so much, the setting of 2 on the volume control is loud enough with those speakers !! All this from one small solar panel and NO cost to the house electric bill. yay :) See more
14.01.2022 Hi everyone :) I wanted to show you how I use my MPPT solar charge controller with a 30volt solar panel and a 12volt recharable battery. This example shows you how the controller appears to make more amps than it gets from the solar panel. I said appears to .. that's how these mppt charge controllers work. Great hey. Have a sunny day :)
10.01.2022 Using a Pulse Width Modulation charge controller with the small solar panel and 12volt rechargeable battery. This solar panel produces around 18volts so it matches the 12volt battery perfectly using a PWM charger. The solar panel voltage needs to be slightly higher than the battery charging voltage. Using the bigger 30volt solar panel with a PWM charge controller and a 12volt battery will not produce the same result as the MPPT charger in the other video. This PWM charger wi...ll simply discard the extra voltage of the 30volt solar panel. So it is far better to match the voltage of the solar panel to the battery like this example if you are using a PWM charge controller. (If you have a 24volt battery, then you could use the 30volt solar panel with this PWM charger because the voltage matches. The small solar panel maximum output (on the label) is 17.7volts at 7.35amps which totals 130watts. So, if I use more than 130watts at once, the extra power will come from the storage battery. I simply don't use more than 100watts at a time if I'm using the small solar panel pack. If I need more than 100watts I change over to the MPPT controller and larger solar panel which can produce around 200watts. A simple rule of thumb to calculate how much current is needed from your solar panel/battery pack is this: for every 10watts of 240 power you use, your 12volt battery needs to supply 1amp. My LED TV uses 30watts at 240volts so that means the solar panel and battery combined need to supply 3amps to the Inverter. Now if I use 200watts of power at 240volts (if I have 2 computers and the TV on at the same time) that will overload the MPPT controller which has a maximum rating of 20amps output. To avoid that restriction, you could connect the Inverter directly to the battery terminals rather than the charge controller. That way the Inverter can draw whatever current it needs from the battery. Remember this: the more power you draw from the Inverter, the lower the voltage on the battery. The Inverter will shut off if the battery voltage reaches 11volts. This is a safety measure so that you don't over flatten your battery. I can watch TV for over 10 hours at night using the large battery with the MPPT controller. But, if I have the laptop plugged in and lights on, then I'll be lucky to get 3 hours. So I have to change the way I think about using power or I'll be sitting in the dark or worse, I'll have to pay the electric company to use their power :( See more
