Search found 7 matches

by Chris19
Sun Jan 06, 2019 2:41 am
Forum: Off Grid Applications
Topic: Strange charging via inverter, what I am doing wrong?
Replies: 4
Views: 2338

Re: Strange charging via inverter, what I am doing wrong?

Hi, yes I was referring to the ac amps from the genset and the FNDC isnÔÇÖt actually connected at present. Because we may only get 100w a day in the winter months, we have been powering down the system in our absence and I have not yet reattached the FNDC. Once I am happy the system is charging corr...
by Chris19
Sat Jan 05, 2019 3:08 pm
Forum: Off Grid Applications
Topic: Strange charging via inverter, what I am doing wrong?
Replies: 4
Views: 2338

Re: Strange charging via inverter, what I am doing wrong?

Set points are at the12V default - 14.4V absorb. Had best results so far, this morning. Started the generator with batteries at 12.2v. Charging at 5A lasted 20 minutes before dropping off, with a further 12 mins at 4A, 10 at 3A and 15 at 2A with voltage at 14.9 (5 degree battery temp corrected from ...
by Chris19
Thu Jan 03, 2019 12:29 pm
Forum: Off Grid Applications
Topic: Strange charging via inverter, what I am doing wrong?
Replies: 4
Views: 2338

Strange charging via inverter, what I am doing wrong?

My off grid installation does not get any direct sunlight for two months a year, not a problem last year as we didnÔÇÖt use the cottage during the winter but this year I have got the generator hooked up but the charging off the GFX1312E is not as expected. Manual start via the Mate and the charge qu...
by Chris19
Wed Aug 02, 2017 10:03 pm
Forum: FLEXmax Charge Controllers
Topic: Over efficient panels?
Replies: 10
Views: 5891

Re: Over efficient panels?

Thank you everyone for your comments on this thread and others I have found/read since, very helpful and reassuring. Winter will be interesting as the house is an old railway cottage in the bottom of a valley and will be in shadow for over a month, but then we are not there all the time. :grin:
by Chris19
Tue Aug 01, 2017 10:28 pm
Forum: FLEXmax Charge Controllers
Topic: Over efficient panels?
Replies: 10
Views: 5891

Re: Over efficient panels?

It was a break in the cloud and I disconnected the panels very quickly but the system has yet to be subjected to the full path of the sun and a clear sky. Thanks.
by Chris19
Tue Aug 01, 2017 10:02 pm
Forum: FLEXmax Charge Controllers
Topic: Over efficient panels?
Replies: 10
Views: 5891

Re: Over efficient panels?

Thanks for the replies, but in reading them I see I have made a significant typo - should read 1093w - 12% over spec, sorry :oops:

The panels are in two pairs, so open voltage about 102, battery temp was 19C.

Chris
by Chris19
Tue Aug 01, 2017 12:42 pm
Forum: FLEXmax Charge Controllers
Topic: Over efficient panels?
Replies: 10
Views: 5891

Over efficient panels?

Hello I have just finished a self-build with a two by two array of 245w panels feeding a FM80 at 12v but promptly turned off the array when the mate read 2093w. Not only is this over spec for the panels, but the sun was at least 30 degrees beyond them. Is this likely to be a panel problem or a setup...