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Old 05-29-2019, 03:52 PM   #18
dhays's Avatar
City: Gig Harbor
Country: United States
Vessel Name: Kinship
Vessel Model: North Pacific 43
Join Date: May 2015
Posts: 8,429
Originally Posted by Aquabelle View Post
The benefit of the DDC over an ACR is that it permits the use of a different battery chemistry for Start/cranking purposes. In my case, I have Crown FLA 6v gc's for House and 3 x Optima spiral wound AGMs for Cranking (Start, Thruster, Davit & Windlass). Works perfectly and Cranking bank still in fine form after 9 years (hoping for 11).

Exactly. Initially the boat had sealed FLA batteries. He ended up replacing the engine start battery, genset start battery, as well as the thruster bank with AGMs. Since they had different charging profiles, than the FLA house bank, that may be why whomever did the work elected to go with the Balmar Duo Charge.

Now, I have AGM throughout and so don't have that issue.

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