My boat came with an early model of a battery
monitor- ESAM, I think it was made in PNW, maybe Portland
. The panel is larger than modern ones, and has a rotating knob for V and A BAT 1, BAT 2, etc. Uses PEukert, has ALT and TEMP options, and a couple of fuses
all to itself.
On my last cruise
this spring, an alarm
started going off for high voltage. The ESAM is indicating 15.03 V or something, and the Balmar
AR-5 is reading 14.8 during the bulk phase. This is all from memory, so correct me if I'm wrong here with phase, etc.
Is it true that flooded deep cycle can take this for short periods with a smart regulator
? I was singlehanding
so I could not pull out the fluke on the ICW
and check, but I had depleted the house bank and I was cruising at high RPM's. I had recently added these new 105 AH batteries for my house bank, replacing two 10 yo gels, and changed some jumper settings on the ESAM for capacity and type, maybe? OK maybe type was just on the Balmar
, the ESAM is old enough that I'm not sure they had a type option. At any rate, the high voltage thing is new, the alarm
is shrill, and can only be eliminated by pulling one of the fuses
. As a result, the unit only displays V.
Could older technology have alarms that come on a lower V? Did I dream this whole high voltage on modern chargers/regulators thing up?
Does anyone have experience with this unit? It is not nearly as simple as new ones.
I think mine has two shunts, perhaps one for the alternator
? What is the deal with the alternator
Can I use my existing shunt and save some money
and buy just a, well just the whole battery monitor
I guess it is. I guess that doesn't make sense. Just don't want to spend $200 I don't have to, but this ESAM thing is a little complicated and spread out for a battery monitor
My new Kyocera
130 is going to crank some V I think, with an MPPT
, so trying to dtermine if I'm cooking
my house bank. Temp is fine, Balmar reads 14.8, but I have yet to put the multimeter to it.
Long post, thanks for input-