Inverter with built-in chargecontroller

[fivewin]

Anyone ever used such an inverter ?
Seems to be handy for simple system or not?

Specs:
1. Built-in solar controller, can charge for battery and convert DC12v to AC 220V. 2. Adopt PV-charging control system, it can charge automatically.
3. 3.0 LED screen display.
4. Battery reverse protection.
5. Universal socket, suitable for all kinds of plugs
6. Modified/Square waveform output
7. Applicable for resistive AC loads
8. Multifunction control system, including automatic PV-charging, high voltage cut-off, low voltage cut-off, short circuit protection, intelligent cooling function, ect.
9. Cooler of fan and working status are intellectually controlled by MCU, which mostly prolongs its service life and helps to save the power consumption
10. Gained CE,CTA,ISO,RoSH certificates guaranteed.
11. 26 years' experience in home power supply industry

6 safe protections are designed to ensure the safety of the power inverter and the electric appliances ,including overload protection, overvoltage protection, low voltage protection, high temperature protection and output short circuit protection,battery reverse protection.

I can buy it here for +/- 100usd

[stefan888]

Hi you can get a more reliable all in one unit from Voltacon https://voltaconsolar.com/off-grid.html
there is an LCD screen, USB connection to PC

[fivewin]

Thanks Stefan, but im in sout east asia and above inverter-charger is about 100usd including courier cost.

[littleharbor]

With a 20 amp charge controller you will be limited to about 280 watts of 12 volt solar panels and 200 amp hours of batteries. Small system, don't expect to be able to run very much off of it. If you use 100 amp hours =50% daily (not recommended) you will have difficulty recharging on a daily basis. Pretty much all you will be able to reliably run would be some LED lighting and maybe a TV for a couple hours.

[fivewin]

If 100 amp /hours = 1200 watt/hours i can live daily with that.

Here is a guy who do it with one 120Wp panel and 2 x 6volt 232 Ah batteries and also run a freezer

http://learn.eartheasy.com/2012/07/our-simple-diy-home-solar-power-system/

[littleharbor]

And if you discharge your battery to 50% daily plan on replacing your batteries often, especially when you will find it difficult to replace those 1200 watt hours every day.

[Sunking]

If 100 amp /hours = 1200 watt/hours i can live daily with that.

Here is a guy who do it with one 120Wp panel and 2 x 6volt 232 Ah batteries and also run a freezer

http://learn.eartheasy.com/2012/07/our-simple-diy-home-solar-power-system/

No way. A 200 AH battery has a total capacity of 1200 watt hours but is not usable. You only get 300 wh per day and about all a 260 watt panel can generate in a day. If you try to use 600 wh per day, your battery is dead in a week.

Energy is not a credit card with no limit. Imagine you have no credit, and can only use cash. Your parents throw your deadbeat arse out of the house and give you $1200. Your job pays you $300/day and it cost you $600/day to feed yourself, pay bills, and put a roof over your head. By the end of the week you are living in a cardboard box and eating out of garbage cans.

[fivewin]

Is it not so that a 200Ah battery has the capacity of 200x12=2400 watt-hours? Discharge to 12-12.1 volt you can use between 1000-1200 watt-hours.

[SunEagle]

Is it not so that a 200Ah battery has the capacity of 200x12=2400 watt-hours? Discharge to 12-12.1 volt you can use between 1000-1200 watt-hours.

You could discharge that 200Ah battery by 1000 to 1200 wh but you will also probably cut the life of it in half. Most batteries have the longer life cycle count if you keep the maximum discharge between 20 & 25%. If you go deeper it will reduce the amount of life cycles and require you to buy new batteries a lot sooner than expected.

[Sunking]

I cannot find the Inverter on the Internet. I can find units that look to be the same. If it is like the ones I have seen would make a real good Boat Anchor, but not of much use other wise.

Here is what I am seeing. A 200 watt panel, 20 amp PWM charge controller, 1000 watt Inverter to be used on a 12 volt 200 AH battery. That is a perfect storm to destroy a battery. Nothing is made or matched to work with each other. About the best it could do is and this is a stretch of oversell, is power a load up to and no greater than 120 watts for 3 to 4 hours per day. In winter half that. Afraid the box it comes in is worth more than what comes in the box. They are looking for pigeons to pluck.

Ask yourself this question. What does the battery cost? Just the battery alone. Example a good 2 year 12 volt 200 AH battery is going to run you $300. With that set up will generate roughly 5 to 10 cents worth of electricity per day. If you treat your battery with TLC every day only discharging 25% each day will last you 750 days before it needs replaced. That means you generated $38 to $75 worth of electricity, and you paid $300 for that. Why would you pay 5 to 10 times more for electricity than you have too?

Two years from now, if the battery makes it that long, you will throw it away or quit using it. Now add in the cost of the solar panel and Inverter/Charger on top of battery cost and see how much money you lost.

Don't let yourself be a pigeon.