can anyone give me some help with this issue: I can't seem to work out the problem with my battery charging
and Xantrex battery
combiner. Basically the house and starter batteries won't charge in parallel. My boat is in turkey
and its difficult communicating with the local electricians (who just say replace the system with diodes which I don't want to do).
I can replace the battery combiner if necessary, but I'm not certain that is the problem (I had some work done on the engines and maybe something was not correctly connected).
This is what happens: I start the engines with batteries not charged (e.g starter 12.9v, house 12.4 v). The alternator
is giving about 14v. The starter batteries are receiving about 14v but the house batteries are not getting charged (remain at 12.4v). The light on the Pathmaker stays orange (disabled i.e. not in parallel) even after running the engines for some time. They should automatically go into parallel once the voltage increases
If I hold the override switch (parallels the batteries for emergency
starting) to the right it goes green (batteries in parallel). It stays green if held for long enough (a minute or so) and all the batteries are then being charged. The manual override is really for emergency
starting and I'm not sure if I should be doing this regularly to override what should happen automatically
If I start with fully charged house batteries e.g. from shore power
the pathmaker green light comes on straight away and the batteries are automatically paralleled (green light comes on straight away). I could understand this if the house batteries are charged first and have to reach a certain charge before the battery combiner parallel’s the starter batteries – but from manually checking its clear the starter batteries are being charged first, so the house batteries never receive a charge from the alternators (unless I manually override it).
So to put it another way - the house batteries won’t charge from the alternators unless they are already charged – and that can’t be right.
I'm not sure if its relevant but for background the set -up is:
with 2 x 27 hp Yanmars
has a new Bosch 100 amp alternator
the other the original Hitachi (about 60 amps I think)
There is a Pathmaker 100/3 (Xantrex – discontinued product) battery combiner
This is linked to a Smart Alternator Regulator
v3 (Ample technology)
Batteries: there is one starter battery for each engine
and 3 house batteries in each hull
(i.e. 6 house batteries and 2 starter batteries)
Any suggestions on what might be wrong here/what to check greatly appreciated. Also if any one has any input on the alternatives (e.g. Balmar
Duo Charge, Xantrex Echo Charge, Blue Sea Automatic relay) that would be great