Re: [RE-wrenches] Off grid DC Loads: DC Converter

2018-01-16 Thread Ray
The cell failures described are yet another sign the batteries need to be replaced. Ray Walters Remote Solar On 1/16/2018 1:51 PM, Daniel Young wrote: Agreed Dave, there are more loads than the original design accounted for. The client understands this so at least we're not in hot water. We'r

Re: [RE-wrenches] Off grid DC Loads: DC Converter

2018-01-16 Thread Daniel Young
Agreed Dave, there are more loads than the original design accounted for. The client understands this so at least we're not in hot water. We're just trying to help them figure out options. As for the converters, this was the idea before the client told us about the freezer being left on while t

Re: [RE-wrenches] Off grid DC Loads: DC Converter

2018-01-16 Thread Dave Angelini Offgrid Solar
Seems to me that you are on the edge for that size battery in winter. If the inverter is going to be on, converters are kind of nutty to me. I could see having one 24V for the freezer but... I only use Concorde AGM's when I have to. Is there an AH counter or Batt Mon? Good Luck Dave Angelini Offgr

Re: [RE-wrenches] Off grid DC Loads: DC Converter

2018-01-16 Thread Howie Michaelson
Daniel, While the Meanwell has been a good choice for me at times, I have also run across some of their converters which have an active cooling fan which is steady on (no thermal control). This leaves a steady phantom load as well as a fairly loud background drone. And their tech support did not ac

Re: [RE-wrenches] Off grid DC Loads: DC Converter

2018-01-16 Thread Daniel Young
Answers to questions: The batteries are Discover EVL16A-A batteries. A single string of 8: 390AH @48V nominal. We had one fail last year, showing a significantly raised internal resistance when tested under a load then under charge. There is another one showing signs of weakness, but current

Re: [RE-wrenches] Off grid DC Loads: DC Converter

2018-01-16 Thread Starlight Solar Power Systems
I too would like to know the make and model of batteries that are loosing capacity. In the past 5 years we have experienced abnormally high failures from 2 brands. Larry On Jan 15, 2018, at 2:00 PM, Jay wrote: Can you tell us: Battery make,model and size? Jay Peltz power. On Jan 15, 2018