Was the 2.5V when connected to the battery? If so, disconnect the charger and measure the battery terminal voltage. Maybe the battery is flat/stuffed.
I've been using the 160 amp folding panel to keep the 120 amp deep cycle battery in the camper charged. It's all about three years old. I noticed via my phone app that the battery charge was slowly dropping. A check of output from the attached charger on the solar panel showed 2.5 volts, and from the panel (disconnected from the charger.) 19.6 volts. It was a bright sunny day, about 27˚C
So, shouldn't the charger be putting out more than that, and if the above suggests the charger is stuffed, What would be a good efficient thing to replace it with?
Thanks in anticipation.
IMG_7161.jpg
Don.
Was the 2.5V when connected to the battery? If so, disconnect the charger and measure the battery terminal voltage. Maybe the battery is flat/stuffed.
Ron B.
VK2OTC
2003 L322 Range Rover Vogue 4.4 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA
RIP Bucko - Riding on Forever
Definitely sounds like a busted solar panel. The kings panels are ok imho
"Land Rover - making mechanics out of everyday motorists for nearly 70 years"
It could be a faulty panel or a faulty solar controller ("charger"), Try using a new MPPT controller (they are pretty inexpensive now) on your panel.
If this doesn't work your panel is buggered.
You only get one shot at life, Aim well
2004 D2 "S" V8 auto, with a few Mods gone
2007 79 Series Landcruiser V8 Ute, With a few Mods.
4.6m Quintrex boat
20' Jayco Expanda caravan gone
As the panel alone is putting out 19.6 volts, but only 2.5V is getting out through the charger, I'm suspicious that the charger is the problem. I've looked at MPPT chargers but I'm not electrically literate enough to know which to choose. Can anyone help with the calculations?
The pair of panels are rated at 160 watts. The label shown above appears on each of the two panels. The battery is rated at 120 amps.
Don
Just because the advert says the controller is MPPT, it may not be. Many Chinese PWM controllers are marked MPPT. MPPT is more expensive.
I'd trust one from Victron Victron Energy
Maybe borrow a controller to try on your panels. Come here and try mine.
Ron B.
VK2OTC
2003 L322 Range Rover Vogue 4.4 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA
RIP Bucko - Riding on Forever
Thanks Ron, that's a generous offer. I'd looked at the Victron brand, but was unable to figure out which to choose.
PM sent.
Don.
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