Hello PhillipVTE and welcome to Solar Panel Talk
Well your system hardware sound about right. A 100 watt panel, 12v 55Ah battery, 30A MPPT CC.
The problem may be that you have under estimated your daily load. That battery can deliver ~ 55Ah x 12v x 25% = 165watt hours a day.
Depending on where you live that 100 watt panel should be able to put back about 200 watt hours even on the shortest day of the year.
My guess is that your battery is being drained by more then those LED lights or for some reason is not being charged back to 100% SOC because that MPPT is not working properly.
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Is my system setup in a good way?
Hi, I hope I have put this post in a good place. But basicly I think I'm having issues with my solar system and I need some help.
My set up consists of
1x 100w 12v solar panel
1x 55ah leisure battery, lead acid
1x MPPT charge controller 30A
Basicly I have the above set up with some 12v led lights that are around 2w each I think (I know the amp they each take is 0.35A because that is what it says it's taking out on my display) but my battery runs flat very quickly (like an hour). The battery is less then a year old and I use the lights every day for about 2 hours. The battery was fine to begin with but over the last couple of weeks I noticed that the voltage will go all the way up to 14v volts in the daytime but will drop to around 12.5 during the night even if I haven't used anything during the charging time.
I not sure if I have my charge controller set up correctly or not
My charge controller is set to PV off: 13.8v
Is this right
I remember someone saying I red to charge it to something like 14.4v is that right?
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