36 volt battery charging

[REW]

If you have or are getting a 36 volt trolling motor, you will need to keep the batteries charged.

There are several different on board battery chargers that will keep them up - and certainly the most convenient to use. The prices of these three bank chargers will vary from $200- $600 depending on make, features etc.

Many golf carts use 36 volt batteries, and caused to to do a search of the web for those style chargers. I ran across the following site -- I haven't contacted them, but they appear to have a reasonable product - 36 volt fully automatic charger, for those folks who don't want to insatll an onboard charger:

http://lvssales.com/lvchrger.htm

You can also do other web searches for 36 volt battery chargers.
I have also seen them at insdustrial supply houses, golf supply cart houses, etc.

Take care

REW

[Grampa_Joe]

Hey Rew,
I've had 36v systems the last couple years, and I've installed them in a number of other boats.
You don't need to have a 36v charger. I just run my charger leads to each motor (make sure you upsize to the correct size wire when extending leads), unplug the trolling motor, and then you have 3 separate batteries.
Granted, you need a 3 bank charger, or if you want to charge your starting battery, a pair of two bank chargers.
It looks like the charger you linked to is only a total of 12 amps. That would take some time to charge 3 batteries. I run 4 batteries and use the not-so-well-know Motorguide chargers. I run a pair of 2 bank, 15 amp/channel chargers. That particular charger is the only one I know of that turns on at 80 volts. That’s a big consideration if you try to charge at the resort in Canada 100’ from the nearest plug in with poor service to start with, or when you’re at the end of 20 boats at the hotel for a tourney.
I think we’ve all had those nights when your boat didn’t charge and couldn’t figure out why. More often than not, your charger wasn’t getting enough voltage.
I see a lot of people with 200’ 14 gauge extension cord and scratching their heads the next day when their batteries weren’t fully charged.

Joe