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445 house bank replacement |
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OptiMystic
Lieutenant Commander Joined: 12 February 2021 Status: Offline Points: 53 |
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Posted: 09 November 2022 at 01:33 |
I need to replace my house bank of two Victron 160 amp agm batteries. Has anyone modified the battery box to fit new batteries? My tech thinks that changing batteries to another brand would be very difficult as the box was made to house the batteries. I would like to upgrade but the space appears to be an obstacle.
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G8WVW
Captain Joined: 09 August 2019 Location: UK Status: Offline Points: 160 |
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Hi,
Sure there are lots options. Guess it just depends how big your budget and ambition. Easy option of course is just to replace like-for-like but those Victron AGM batteries are not cheap! We replaced 2x 165Ah Victrons (useable capacity about have that) with 600Ah Winston Lithium (measured at 751Ah) giving 4-5 times real-world increase in capacity. It was however a VERY major upgrade. Battery box was cut out to be replaced with new very slightly larger box and lots of other upgrades required. Cheers.
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Andrea & Ian
Aboard SV Gabrielle (H445 #164) Portishead, SW England. |
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astarte
Commander Joined: 14 September 2008 Location: Norway Status: Offline Points: 131 |
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Hi,
I am currently changing to lithium. I bought eight 3.2 V, 280 Ah cells. That will give me 560Ah when coupled together. Together they will occupy 30 x 35 cm and fit into the original battery box under the cabin seat as the old batteries did. I am doing all myself, and after some studying it doesn’t seems that complicated. Compared to buying drop-in batteries it will be less than half of the cost and I think I get a better solution.
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Kristoffer
Hanse 370e #412 |
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Wayne's World
Admiral Joined: 18 July 2012 Location: Cruising Status: Offline Points: 1111 |
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It seems insurance companies are getting interested in whether Lithium installations are professionally done. It seems they are concerned about fires cause by "some" installations. Our insurance company asked the question of us - do you have a lithium battery installation and if yes, was it professionally installed. I guess their inferance is that a fire caused by a bad installation would not be covered.
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Wayne W
Cruising, currently in the Caribbean and will head across the Pacific early 2024 |
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G8WVW
Captain Joined: 09 August 2019 Location: UK Status: Offline Points: 160 |
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Having implemented many significant upgrades to our 445 over last three years, I wanted to ensure no quibbling should we make an insurance claim recognising value of additional equipment and particularly lithium battery risk so declared all in a two-page statement at last renewal expecting questions around lithium battery install and an increase in premium.
The statement including lithium battery risk was accepted within terms/price. This is a UK vessel in UK waters with a UK insurer. Guess insurers in other regions may have a different approach but suggest honesty/dialogue is essential to avoid any future claim being rejected. Having seen dodgy lithium upgrades on YouTube and 'expert' advice on many forums, if I was an insurer, I'd be very cautious of insuring lithium battery systems!
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Andrea & Ian
Aboard SV Gabrielle (H445 #164) Portishead, SW England. |
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OptiMystic
Lieutenant Commander Joined: 12 February 2021 Status: Offline Points: 53 |
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Thanks for the comments. I decided to go lithium and selected the Victron 200 amp. We will have three installed with a new Victron monitor. It looks like they will fit in the existing box.
Cheers
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OptiMystic
Lieutenant Commander Joined: 12 February 2021 Status: Offline Points: 53 |
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All done with the installation and it turned out beautifully. We went with full Victron components and a wakespeed external regulator and reconfigured alternator. 3 200 amp hour batteries. This is up from the 2 7 year old Victron 160 amp agm. All fit where the old system was.
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Ian Coverdale
Captain Joined: 19 June 2019 Location: Gosport Status: Offline Points: 192 |
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We also have 600Ah aboard a 445. You will certainly notice that extra capacity!
Cheers.
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Ian & Andrea
SV Gabrielle (H445) Liveaboards - currently Gosport UK for winter 2023/24. www.facebook.com/sailinggabrielle |
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Jbazwin
Sub Lieutenant Joined: 05 November 2018 Status: Offline Points: 7 |
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Hi there, would you mind sending photos of the Victron system 3x200AH batteries? Looking at doing the same
Thanks
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32mike
Captain Joined: 26 March 2020 Location: FLorida, US Status: Offline Points: 210 |
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I’d be interested in seeing pictures of that new battery install as well. I’m swapping the original batteries for new Victron AGM’s of the same size - just didn’t want to spend all the extra money on the lithium upgrade at the moment. It seemed to me, however, that the battery box, as is, didn’t have enough room for much else. It’s pretty tightly fitted for the AGM’S.
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Mike
S/V Dulces Sueños 458 #087 Tampa, FL |
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