Below is my system spec:
Solar Panel: 46W (24V Voc; 18V Vm; 3.23A Iac; 2.43A Im)
20W (22V Voc; 16V Vm; 1.40A Iac; 1.06A Im)
Battery: 12V33AH AGM DC battery
Charger: Steca PR1010 PWM SOC charge controller
Load: 18W CFL bulb
I have problem with the charging. Is it my setting problem or the charger controller?
First, I fully charged my battery to 100% via regulator and rest it for a day. Then I connected it to the charge controller, however it read 80% in the SOC. Next, I discharge it with a bulb for 16hr and it drop to 62%. It seem the charger is working correctly, but when I recharge the battery using 50W solar panel via charge controller for 6hr with good sun radiation, the SOC only raised up to 64%.
Next, I charged back the battery to 100% via regulator and rest it for a day. I then connected it to the charge controller again and then reset to factory setting and it show 80% charged as usual. Discharge to 62% with a bulb and try to recharge with 20W solar panel via charge controller. This time, after 6hr, the percentage drop to 60%. Why is that? Anyone have idea? Thx!
Solar Panel: 46W (24V Voc; 18V Vm; 3.23A Iac; 2.43A Im)
20W (22V Voc; 16V Vm; 1.40A Iac; 1.06A Im)
Battery: 12V33AH AGM DC battery
Charger: Steca PR1010 PWM SOC charge controller
Load: 18W CFL bulb
I have problem with the charging. Is it my setting problem or the charger controller?
First, I fully charged my battery to 100% via regulator and rest it for a day. Then I connected it to the charge controller, however it read 80% in the SOC. Next, I discharge it with a bulb for 16hr and it drop to 62%. It seem the charger is working correctly, but when I recharge the battery using 50W solar panel via charge controller for 6hr with good sun radiation, the SOC only raised up to 64%.
Next, I charged back the battery to 100% via regulator and rest it for a day. I then connected it to the charge controller again and then reset to factory setting and it show 80% charged as usual. Discharge to 62% with a bulb and try to recharge with 20W solar panel via charge controller. This time, after 6hr, the percentage drop to 60%. Why is that? Anyone have idea? Thx!
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