Thruster Battery Tray Failure

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   Coming into a marina today my Quick thruster deployed, but was inoperative. 
Investigating further, I found that the fiberglass battery tray in the forepeak had shattered and collapsed, and landed on top of the thruster motor, and the 355amp fuse had blown. The positive cable was pressed between the top of the motor and the bottom of the very heavy and now unsupported battery tray, and I think I can see that a bolt atop the thruster motor has protruded into the positive cable - this may have been the root cause of the blown fuse. 

Anyway, I was disheartened to see how thin the fiberglass was holding up these very heavy batteries, in a part of the ship prone to bouncing. I'm surprised it lasted as long as it did. 

I am hopeful the thruster motor still works, and lucky the thruster assembly/housing wasn't cracked.

Will be rebuilding this to a higher standard. 

Battery box removed in the photo below. 

I'd suggest Hanse owners investigate the robustness of their forepeak thruster battery trays. 

I'

Edited by kipwrite - 24 April 2023 at 02:49

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kipwrite Members Profile Send Private Message Find Members Posts Add to Buddy List Commadore Joined: 14 October 2015 Location: New York Status: Offline Points: 495	Post Options Post Reply Quote kipwrite Report Post Thanks(0) Quote Reply Topic: Thruster Battery Tray Failure Posted: 24 April 2023 at 00:18
	Coming into a marina today my Quick thruster deployed, but was inoperative. Investigating further, I found that the fiberglass battery tray in the forepeak had shattered and collapsed, and landed on top of the thruster motor, and the 355amp fuse had blown. The positive cable was pressed between the top of the motor and the bottom of the very heavy and now unsupported battery tray, and I think I can see that a bolt atop the thruster motor has protruded into the positive cable - this may have been the root cause of the blown fuse. Anyway, I was disheartened to see how thin the fiberglass was holding up these very heavy batteries, in a part of the ship prone to bouncing. I'm surprised it lasted as long as it did. I am hopeful the thruster motor still works, and lucky the thruster assembly/housing wasn't cracked. Will be rebuilding this to a higher standard. Battery box removed in the photo below. I'd suggest Hanse owners investigate the robustness of their forepeak thruster battery trays. I' Edited by kipwrite - 24 April 2023 at 02:49
	Kipwrite

ohthetrees Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 24 November 2019 Status: Offline Points: 189	Post Options Post Reply Quote ohthetrees Report Post Thanks(0) Quote Reply Posted: 26 April 2023 at 17:40
	Not nice at all, thanks for sharing.

tobo2 Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 14 February 2014 Location: Switzerland Status: Offline Points: 303	Post Options Post Reply Quote tobo2 Report Post Thanks(0) Quote Reply Posted: 28 April 2023 at 14:05
	OMG! On our 508 it looks quite solid. The batteries are sitting on approx. 15mm playwood floor.

ohthetrees Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 24 November 2019 Status: Offline Points: 189	Post Options Post Reply Quote ohthetrees Report Post Thanks(0) Quote Reply Posted: 27 September 2023 at 19:49
	What year is your boat? My battery box looks quite different.



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