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Old 08-29-2020, 01:08 PM   #28
Frosty
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City: US PNW
Join Date: Nov 2018
Posts: 943
Quote:
Originally Posted by Arc View Post
To solve this I added a group31 Glass mat 2’ from the motor. I did the same with the stern thruster. I then bought 2 single bank 10 amp chargers. 1 for each battery. This isolated everything.
Quote:
Originally Posted by Comodave View Post
I would definitely have a dedicated battery for each thruster. It is easy to do and doesn’t add a significant cost to the project. We added an Optima for the stern thruster with it’s own 15 amp charger.
A question for either or both of you: What type of chargers are these? What powers them?

I've never had a setup like this, but a few boats I've looked at have a bow thruster powered from the house bank. Looking at the amp draw, I'm not so sure I like what that might do to instruments, etc. Especially since I might want to use the thruster a bit in locks where you have the engine shut off.

Your "isolated" systems sound good, so I'm wondering where the chargers get their power and when.

(Figured this might be of interest to the OP as well.
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