Question about Electronics - Others
If using an inverted for small electric use, what would be the solar wattage panel needed, to maintain a good charge on the 12volt battery?
What every you take out of the battery you need to put back in (plus the losses), the amount of watts you need is proportional to the AC load the equation I use is array size in watts X peak sun hours divided by 2 or .5 the .5 is the losses in the system also your inverter should be matched to the batteries as a rule you should not draw anymore than 100 amps from the battery .
Posted on Nov 09, 2018
the solar panel is just to charge your inverter,if it is charging and the inverter is on it will drain the current the solar panel is supplying to the batteries,this makes it look like it is not charging ,so i advice you to switch off you inverter when charging it,get another set of batteries connected to your solar panel then charge both, let them be separated so that the new one is not in use so that when solar is out you can switch to the other set of batteries
Posted on Feb 25, 2010
it is possible the cont actor or relay that do the switching is bad
Posted on Feb 27, 2010
This a possible failure of the voltage detection circuit in the inverter main board and requires the fault be identified by checking the voltage/current feed/limiter to the battery.
Once when the battery voltage has reached the threshold set up the charging should stop and then the circuit will analyse the voltage on the board to trigger the charging to be put ON.
This can be a failure of the detection circuit and if not checked can damage the battery.
Posted on Jun 20, 2011
I'm sorry that I can't help you, but if you're in a hurry, you can visit the Magnum website at: http://www.magnumenergy.com/Service/Servicefront.htm and try to find your model's online manual and search troubleshooting advice or you can email customer service at
[email protected] and they should at least be able to lead you in the right direction.
A few questions: Does this problem remain even when there is at least a 10+ watt load on your system? is your Magnum in a hot environment? Does your inverter feel extraordinaryily hot? Have your batteries outlived their lives? Have you cleaned all the connections? Even if they 'look' like they don't need it?
All the best to you.
Posted on Sep 11, 2011
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