Venezuela Solar
New Member
- Joined
- Dec 6, 2019
- Messages
- 146
Hi everyone, this is a favor for a friend who is initiating in the bussines of solar energy, he recently installed a system with the following specifications:
(1) Inverter-charger 6000w rated capacity 8000w peak
(8) 150ah 12v sealed lead acid batteries (gel)
48v, 4S 2P arrangement
2400w solar arrangement (8 modules of 300w) 4S 2P 50 voc
Charge controller double solar entry one for each series of panel (dont have the specs, but it can handle the solar arrangement)
Recently the batteries started to fail, the hole bank, during day time you can use almost everything like normal, on night time the batteries only last 40-50 minutes, we have checked 4 of 8 batteries with a 12v charger (asuming there was a problem with the charge controller or the inverter) and a 12v inverter with a load of 130w (two incandescent bulbs) and i have measure the Whs with a Wh meter (with a coil) and with a kil-a-watt meter (both on the AC side, we dont have any Dc meter for wh or amps yet) and the results are a range from 44wh to 60wh per battery (yes wh, not even a Kwh) charging voltage rises in about 30 min with 5 amps, resting voltage is at 13-13.2 on each battery studied, i would like to know your opinion on the subject, i think i can declare the batteries dead with no solution right?
Extra info:
Both the inverter and the charge controller look to be working fine, at least the voltage rise acordenly to the batteries voltage and on day time there is no problem using appliences
All equiment its chinese, branded Efrenar (spanish brand, but its chinese)
Only two month of use
I havent see any mistakes on the installer part (wires, sizes, conections)
Thanks a lot before hand
(1) Inverter-charger 6000w rated capacity 8000w peak
(8) 150ah 12v sealed lead acid batteries (gel)
48v, 4S 2P arrangement
2400w solar arrangement (8 modules of 300w) 4S 2P 50 voc
Charge controller double solar entry one for each series of panel (dont have the specs, but it can handle the solar arrangement)
Recently the batteries started to fail, the hole bank, during day time you can use almost everything like normal, on night time the batteries only last 40-50 minutes, we have checked 4 of 8 batteries with a 12v charger (asuming there was a problem with the charge controller or the inverter) and a 12v inverter with a load of 130w (two incandescent bulbs) and i have measure the Whs with a Wh meter (with a coil) and with a kil-a-watt meter (both on the AC side, we dont have any Dc meter for wh or amps yet) and the results are a range from 44wh to 60wh per battery (yes wh, not even a Kwh) charging voltage rises in about 30 min with 5 amps, resting voltage is at 13-13.2 on each battery studied, i would like to know your opinion on the subject, i think i can declare the batteries dead with no solution right?
Extra info:
Both the inverter and the charge controller look to be working fine, at least the voltage rise acordenly to the batteries voltage and on day time there is no problem using appliences
All equiment its chinese, branded Efrenar (spanish brand, but its chinese)
Only two month of use
I havent see any mistakes on the installer part (wires, sizes, conections)
Thanks a lot before hand