I need some help with my electrical system
. I can't find the problem and wonder what is going on.
Here is the system that I have been using successfully for about 20 years;
High output alternator
wired for external regulator
(currently a Hitachi 80 amp)
(currently a Balmar
65 Watt shade tolerant solar
panel working through a controller with a diode
All feeding into four golf cart batteries in two banks that total of 440 ah, but run as one bank most of the time (currently new and fully charged when put in this Spring).
All of this is monitored by a LinkLite battery monitor
Here is the problem:
When doing my Spring commissioning, I ran the batteries down about 25 ah while flushing
system. When I went to recharge the batteries, I noted that the charge rates from the alternator
at the beginning of bulk charge were only about 10 amps to start and within 1 minute, tapered to 7 amps and within one minute was down to 5 amps and then down to 4 amps .....and within five minutes was at 2 or 3 amps. At this rate, it would take forever to get things back to 100%. I do not recall
this happening before with this set up. Here is what I have done so far to chase this down:
Alternator was checked by an alternator shop and is working fine.
Changed the regulator to a spare and got the same result in outputs
Checked all the wiring
and it checks out and cleaned contacts
Checked and tighted the belt.
Any ideas of about what is going on here? I am perplexed. Seems like the system should go to full bulk for at least a few minutes before tapering. And should not taper that much when things are cool and there is still a 20 amp deficit.
What am I missing??