Hi,
I know that this is a simplistic idea, so ignore it if it is stupid, but
wouldn't it work if you had a low capacity second bank and a switch to
change the charging over, and a switch to change over the main load, so
that you can always be charging a battery pack that has no simultaneous
draw? This takes away any doubts regarding simultaneous charging/loads
etc., because there never are any such situations.
Or maybe you have a connection with high resistance somewhere that is
causing the load when appliances switch on, to affect the charging by
drawing from the charger rather than the battery(s)? Or a weak battery
that cannot supply the amps that are being drawn, again causing the
loading up from the charger.
John
1a. Battery Charger
Posted by: "Steve Dolan"
sdolan@scannersllc.com[mailto:sdolan@scannersllc.com] brzrkr22
Date: Tue Nov 13, 2012 6:18 am ((PST))
This has to do with a Battery Charger stepping back in its charge
routine.
For the last few years I have had a problem with the charger (BRUSA) not
stepping back to its previous routine when it can't maintain charge
under trickle or maintenance charge.
Most chargers are built for charging cars. Cars may have a load at park
of 1 few milliamps to maintain the clock and memory loads.
With a larger boat, running a refrigerator and freezer while away from
it may draw as much as 10A total every few hours alone. These are the
only devices, other than the sumps of course, that are left running over
the week when no one is aboard. The charger in trickle mode provides
maybe 3A. In the warm summer months this may not be enough to maintain
the 144V batteries, so this charger figures that there is something
wrong and shuts down but won't go back to step 2. I can understand to a
degree why this is for safety reasons and this is the reason from BRUSA
who states that they had done this in the past but if a battery went bad
in a string the charger may continue to run. I am at a loss as to how to
solve the issue and thought I would ask if anyone else has run into this
problem and had a solution. In the past I would just unplug the shore
power for a few minutes and then plug it in restarting the charge
routine.
Steve in Solomons MD
--
http://www.fastmail.fm - Does exactly what it says on the tin
| Reply via web post | Reply to sender | Reply to group | Start a New Topic | Messages in this topic (1) |
No comments:
Post a Comment