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Starter battery removal

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Ian2019 View Drop Down
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Joined: 04 November 2019
Location: Montenegro
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    Posted: 28 July 2022 at 04:55
Hi I have a dead starter battery, and have searched the forum to see if there is any information on how to safely remove it from the storage shelf above and at the back of the engine. These weigh about 27 kilo and the access is so tight. Just wondering if any one has figured out how replace it without dropping it on the engine.
Thanks
H385 #317 2014 Tivat Montenegro
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Gaia View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gaia Quote  Post ReplyReply Direct Link To This Post Posted: 28 July 2022 at 08:02
I changed the starter battery last fall. Difficult job, but went well after I removed the frame on the battery shelf. I also put a plywood sheet over the engine with various supports underneath so that it was stable. in this way I was able to pry the battery out and down onto the plywood and then completely out.
The sailor from Lillesand, Norway
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415 Singapore View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 415 Singapore Quote  Post ReplyReply Direct Link To This Post Posted: 29 July 2022 at 07:05
Hi I agree with Gaia, you need to build some kind of temporary platform to allow you to slide the battery out. Unscrew the front lip to the battery shelve and it isn't too bad.
We had to replace our starter battery twice in six years, which isn't good. Last time I asked around as to why they were failing so quickly and all the responses I got was that AGM batteries do not like too much heat and that the position at the top of the engine bay was not a good one.
We have subsequently moved our starter battery to under the berth in the port cabin and it seems to be lasting better than the previous ones. If you move the isolator switch at the same time you can do this with the existing cables.
All the best
Paul
Paul - Night Train - 415 #136
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AndyS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AndyS Quote  Post ReplyReply Direct Link To This Post Posted: 29 July 2022 at 10:26
I replaced mine in 2017 and again in 2021 - I would rather spend the money for a new starter battery than be stuck. Our house batteries are 10-years-old and still doing fine.
Last year when I replaced the battery I did not have anyone around to help, so I ended up just putting a lot of blankets over the motor and sliding the battery off the shelf (after removing the retaining lip) and onto the blankets. This went well and I was able to easily reverse the actions for the install. No damage to the engine or compartment. 
Andy
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Ian2019 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian2019 Quote  Post ReplyReply Direct Link To This Post Posted: 30 July 2022 at 12:11
Hi All,
Iíve managed to change the battery, and a couple of observations.
About 2hrs
I used a ramp of 180cm 2cm chip board using a butt hinge to the underside of the shelf.
Turned off all the power including the shore power.
Disconnect the positive from the short cable to the boat. 17mm socket
Slid the battery off the shelf on to a stop on the ramp.
I then found there wasnít enough negative cable to get to the terminal. 
Cut all the cable ties to the negative lower engine connector and pull the negative through enough to get to the negative terminal to disconnect it. 13mm socket
Hanse, in my case, had cabled tied the negative in a loop, cut the cable tie, which then gave about 30 cm more cable to play with for the new battery.
Reversed procedure for the new battery but left the cable tie off the negative.
Secured the new battery in place.
And hey presto all ok.
Question?
The old battery showed 12.7v but on a load test zero?
Is the anchor windlass fed from the engine starter battery?
Hope this helps anyone in future.
Cheers 


Edited by Ian2019 - 31 July 2022 at 04:41
H385 #317 2014 Tivat Montenegro
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