Re: 24V Panel Charging 12V System
Welcome to the forum. The specs read that the Imp is about 4 Amps, a little low for the 'recommended' minimum 5% charge rate on a Flooded, SLA group 24 battery. You will need to invest into a MPPT controller to bump up the Current for 12V charging. I know you have your reasons for going with a flexible panel, but for about the same money you could have gotten a Kyocera 7.5 Amp, 135W panel at 12V (the Kyocera would essentially provide twice the Current while allowing for a less expensive controller).
About the HQRP charge controller you describe, I started out with that product, and it would not charge my 12V 75AH marine battery higher than 12.7 (80W panel). After replacing it with a MorningStar SunSaver 10A CC, my Group 24 battery is now maintained at 14.1 V
Originally Posted by gavinseim
Last edited by bmet; August 31st, 2011 at 1:40 PDT.
My Power Pack: $490
Remote electricity: Priceless
SunWize 80W panel, Costco 75Ah Marine battery, SunSaver 10A CC, Black&Decker 1000W Inverter, 3 12VDC ventilation fans(my diversion load), infrastructure. Mobile Cinema ($15 @ thrift store).
1800 Watts of Evergreen panels, survey site selected.