Temperature compensation on a Tracer 4210RN, 40 Amp MPPT off grid solar charge controller.

This Tracer 4210 ,40 Amp MPPT solar charge controller came in for testing. The customer wasn't getting voltage up high enough. The temp. compensation ended up being the culprit, east fix.

[@pamelaremmer2781]

thanks you explained what I have been looking for

[@bucktoothbettysboyfriend11]

Thank you just what i was looking for.

[@jackturtle131]

Thanks mate took me only an few years to find out

[@lightharvestsolar]

It's pretty hard to tell on most of these charge controllers, the easiest way would be to observe an abnormally high voltage for a short period of time.

[@rgormley1968]

i noted you set to -1 what would "o" be? thanks

[@tyler6865]

Do you know how to force equalization on this unit? I can't seem to figure it out. 12 volt bat bank ?

[@solardiymadesimple.3779]

Hi my problem is when the battery is full the meter only shows 50% state of charge? second ,when my battery is at 12.62v the meter shows only 12.5 v . Have you ever come across this problem. is there a fix other than the bin?

[@Yknottrywot]

How would you ever know your controller has gone into the equalisation stage? tks

[@baricdondarion6228]

Thanks alot for posting this. Any idea what the equalization voltage of this controller is? I read in the manual it is 14.8 (which is grossly inadequate to charge a battery) but in the manual for the same product sold under the renogy brand. the equalization is set to 15.5v.. have u been able to test what the actual equalization is?

[@keliandjaz]

I have an issue I was wondering if you could help? I have a 200 watt Renogy kit with a tracer 20watt MPPT controller and 4 6volt battery connected series and parallel to make a 12volt system my panels are also in series the meter is reading battery's are at 52% so I thought i would put a charge on them just to make sure. When i did this my charger said my batteries are at 97% please tell me what im doing incorrectly

[@rgormley1968]

that should be -01

[@lightharvestsolar]

Don't worry, you didn't do anything wrong, and you really don't need another meter. Your system is working properly, the meter is just very misleading. All you need to know is any voltage above 12.8 Volts (with lead acid batteries) means the battery is basically full. You'll start to damage your battery if you go below 12.0 Volts. It's best to stay above 12.2 Volts. I read the voltage, not the State Of Charge (S.O.C.) bar graph to see how full my batteries are. The Voltage is like your gas gauge, 12.8V+ is full, 12.0 is empty.Thanks.

[@solardiymadesimple.3779]

Hi my problem is when the battery is full the meter only shows 50% state of charge? second ,when my battery is at 12.62v the meter shows only 12.5 v . Have you ever come across this problem. is there a fix other than the bin?