I'll email you the installation and operating manual for the Heart Link 2000. I've also copied the info for the Heart Interface, Link 2000, an Link 2000R alternator control. You might not have that equipment.

When you say "Battery", the Link 2000 allows you to monitor two battery banks. You'll have to check where the "measurement" connection is effected; and the wiring to that "point".

If you have Gel Cells, it's probably lees of an issue. If you have lead cells or AGMs, then I'd be more concerned with sulfation. AGM's really need to charged at robust voltages. Large battery banks really don't get what they need from a Heart Interface for a variety of reasons. if the voltage is too low, they get LESS and LESS quickly.

The AMPERAGE of ALL of the CHARGING SYSTEMS is overstated vs. what they put-out in terms of maximum amps. (That includes my very good MasterVolt system.) My Heart wouldn't really put-out more than 60-70 Amps on a continuous basis, even though it was supposed to be a 130 Amp charger. If you're putting-out 60 amps while using 20 amps (say underway or at the dock), then you're only dribbling 40 amps into (say) a 400-800 amp hour battery bank.

Unless you're into this, I might suggest you have someone look at the system, Chris.

There are two VERY good electrical and electronic guys in your neck of the woods:

Kim Baker - Rockport Marine - (207) 236-9651 - (Surprising, in Rockport ;^))) )
Robert Klamp - Kramp Electronics - (207) 244-3035 - (On Mt. Desert Island)

Bob is a very special person -- and I know he move around. If you pull into SW Harbor, it' easy for him. He's amazingly efficient and his hourly rate is very reasonable.

Kim is very good and efficient. He's closer to you, but he has the yard overhead between him and you.

I recommend both of them.