smoking charge controller

[mega man]

well suneagle that was the very same way i calculated them at first before actually using them, but after getting them and putting them to use i saw different results, kinda wondering why the manufacturer's rated them like that in the first place. using 4 of them give 24amps in good sun, which kinda had me confused at first use, weird part is i have some the same length but those rate 136watts and they give the exact same amp output as the ones rated at 68watts.

20130709_094038.jpg

i use these 4 to charge 4x 6v golf cart batteries that run the fridge and my electric stove

[snelbaker]

That Thunderbolt CC only has a maximum input voltage of 25v. if was made for a 12 volt system. If you had wired your panels in parallel it would have been ok. Of course you still need to have gotten the correct wiring polarity.

Whichever CC has let out the smoke is no longer good. Best to give up on it.

may i send you pictures. they are too large to post.

[SunEagle]

may i send you pictures. they are too large to post.

You should be able to Private Message me and add your pictures. What in particular are you sending?

[Mike90250]

Unisolar panels degrade over time from sun exposure, so they produce a lot the first year or so, and in 5 years, will still output their nameplate power.

[SunEagle]

Unisolar panels degrade over time from sun exposure, so they produce a lot the first year or so, and in 5 years, will still output their nameplate power.

I know they come in different sizes but what is the nameplate info on the average size of one of these panels? I thought they had a very high voltage output but relatively low amp rating.

[Mike90250]

The Unisolar 64 that I have is about a 20V panel. OK for 12V battery & PWM controller.