Quick Test of Eco-Worthy MPPT Controller
Ordered it on 3 Oct arrived at the door 23 Oct free shipping.
Controller rated to 42V so watch that. EG I have it on one 230w panel, Voc 37v at 25C, so would be more Voc at cold temps.
Not able to do proper testing with Trimetric to measure, but rigged up a yard test to see if the thing worked at all :)
Used one full SOC 12v battery with a 400w inverter clamped on and two 100w lamps for an estimated 20a draw. Got battery to 12.5v connected controller and 230w panel (Voc 36.8, Vmp 30 , Isc, 8.34, Imp 7.67 )
The displayed voltage was confirmed with another voltmeter. Before starting, checked disconnected panel aimed at sun, got:
34.7Voc and 8.06 Isc. (Rated 36.8 and 8.34) so expected less than max amps.
Best amps on controller when aiming panel was 14.99a Didn't note battery voltage
Lost the window--sun behind trees. It works (assuming its amps read-out is to be believed) and might even get my hoped for 16 to 17 amps on a better day. So far so good. Be a while before I can do any real testing and comparisons with PWM.
Just wanted to report the controller seems ok as was posted by JiminDenver. Jim, thanks for the good steer to this controller for $102
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/26464298/srt/pa/pging/1/page/1.cfm
http://www.eco-worthy.com/catalog/mppt-solar-charge-controller-free-shipping-p-182.html
Controller rated to 42V so watch that. EG I have it on one 230w panel, Voc 37v at 25C, so would be more Voc at cold temps.
Not able to do proper testing with Trimetric to measure, but rigged up a yard test to see if the thing worked at all :)
Used one full SOC 12v battery with a 400w inverter clamped on and two 100w lamps for an estimated 20a draw. Got battery to 12.5v connected controller and 230w panel (Voc 36.8, Vmp 30 , Isc, 8.34, Imp 7.67 )
The displayed voltage was confirmed with another voltmeter. Before starting, checked disconnected panel aimed at sun, got:
34.7Voc and 8.06 Isc. (Rated 36.8 and 8.34) so expected less than max amps.
Best amps on controller when aiming panel was 14.99a Didn't note battery voltage
Lost the window--sun behind trees. It works (assuming its amps read-out is to be believed) and might even get my hoped for 16 to 17 amps on a better day. So far so good. Be a while before I can do any real testing and comparisons with PWM.
Just wanted to report the controller seems ok as was posted by JiminDenver. Jim, thanks for the good steer to this controller for $102
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/26464298/srt/pa/pging/1/page/1.cfm
http://www.eco-worthy.com/catalog/mppt-solar-charge-controller-free-shipping-p-182.html
