corporal_Canada
New Member
minor correction i have 2x 12v 50ah linked in parallel...Lemme save you 23 pages of reading -
He has a 30amp PWM controller and as of last I knew he had 3 x 50watt 12v (18.x VOC) panels connected in parallel. He can add a 4th 50w pannel to the other 3 and use the extra power. Each puts out a max of 4.2 amps.
50w * 4 panels * 0.7 for efficiency of pwm = max watts in of 140watts power in
140w / 14.2v (charge voltage)= 9.85amps
He has 2 x 12v 100ah AGM lead acid batteries in parallel - max charge current 11.2amps per so 22.4amps max we are 1/2 that or less
IF he respects the batteries he burns off 50% SOC - or 640Wh.
So - 640Wh / (9.8*12.8) = 5.1hours - that is how long at full sun he needs to fully charge his battery set. Now, I suspect he is running them to SOC of 20% or less. Basically until the inverter shuts off from low voltage. So it will probably take more like 8 hours of full sun to get a full charge.
Now - his crimps if you dig through and look at the videos and pictures are not good boardering on dangerous so I am sure there is heat loss there.
The inverter he had last time I saw it was labeled at 500w but performs more like 300w if that. He has several others unless they are gone that are 1000w labels or more, but are probably 100w inside.
It has been suggested multiple times he switch to LFP battery and/or to a MPPT as well. Both scare him and/or cost to much money to save up at one time (12000ish pesos each)
Now you have a good starting point and understanding of what he has.
the 100ah battery is sitting on the floor collecting dust until i can figure out how to bring it back to life...