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Battery locker

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Brufan View Drop Down
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    Posted: 19 August 2019 at 14:29
Hi,
Does anyone has modified main battery locker setup on H 355 ?
Original setting is nice but is a huge waste of space.
Any photo welcome.
By the way : does anyone switches from AGM to LifePO4 ?

Best regards
Bruno

hanse 355 - 57

S/Y Spicy Ginger

White hull, 2 cabins, Volvo D1-30, Selden rig, removable mainsheet track system (modifications done now), Simrad-Jefa autopilot.
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Forth2 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Forth2 Quote  Post ReplyReply Direct Link To This Post Posted: 21 August 2019 at 19:48
I changed the setup with two 80 Ah lead acid batteries to a 44 Ah starter battery
and a 100 Ah LiFePo4 house battery.

The battery is made up of 4 100 Ah Winston yellow cells.
https://www.ev-power.eu/Winston-40Ah-200Ah/?cur=1&force_sid=cc6u9d95nj6vdutct612a6gd56

The BMS is home made. It takes care of ending the charge correctly and disconnecting the consumer side at low battery voltage.
The house battery can be drained to almost empty before the consumer side is automatically disconnected.
I am using the standard alternator which is charging  a bit slowly, but in practice for me it has not been a problem.

The capacity of the 100 Ah cells is specified with a 1C consumer current. But since my current is max about 0.05 C, that gives maybe an extra 20 Ah capacity.

I think the LFP 100 Ah battery (weight 14 Kg) has the same usable capacity as a 250 Ah lead battery (weight 80 Kg ?)

I have a Hanse 315 2006.

I urge to to read the articles on Nordkyn Design about LiFePo4 batteries before making any decision.
http://nordkyndesign.com/electrical-design-for-a-marine-lithium-battery-bank/

Mike


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Brufan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brufan Quote  Post ReplyReply Direct Link To This Post Posted: 22 August 2019 at 16:35
Thanks for answer & photo.
My engine battery sits in engine bay.
My current service battery is a 165 Ah AGM (48 kg) from Victron.
I wish I can afford LIFEPO4 system but still a lot of money (with BMS, latching relays, ...) since I need 130 - 150 Ah LIFEPO4 system.  
I need min 100 (useable) Ah per day during summer cruises.
So choice is between two 110 Ah AGM (65 kg and 650 EUR or so) or 130-150 Ah LIFEPO4 system (less than 30 kg but 1800 EUR...).
In both case I have to build a new setting in service battery locker (located under portside settee)
Bruno

hanse 355 - 57

S/Y Spicy Ginger

White hull, 2 cabins, Volvo D1-30, Selden rig, removable mainsheet track system (modifications done now), Simrad-Jefa autopilot.
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Navegador View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Navegador Quote  Post ReplyReply Direct Link To This Post Posted: 30 August 2019 at 09:21
hay Bufran,

changed original 1 x Victron 12V- 165Ah AGM for 2 x Victron 12V - 165Ah AGM in original battery locker by removing original sterling charger. Sterling charger makes to mutch noise in the cabin.
place new Victron Multy plus 35-800 charger in aft locker.

 

Navegador H355 D1-30
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Brufan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brufan Quote  Post ReplyReply Direct Link To This Post Posted: 30 August 2019 at 09:27
Hi Navegador,

Very nice setup.
I may copy this.
But 165 Ah battery weighs 48 kg.  So 96 kg for 2 battery (+10kg or so for Multiplus) 
Isn't it too much weight only on portside ?  Doesn't she list more on portside ?
Bruno

hanse 355 - 57

S/Y Spicy Ginger

White hull, 2 cabins, Volvo D1-30, Selden rig, removable mainsheet track system (modifications done now), Simrad-Jefa autopilot.
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iemand View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote iemand Quote  Post ReplyReply Direct Link To This Post Posted: 30 August 2019 at 12:29
I would go for Lifepo4 which are 1/3 of the weight or even less
Hanse 312 MJ 2004 - Hanse 370e MJ 2007
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Brufan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brufan Quote  Post ReplyReply Direct Link To This Post Posted: 30 August 2019 at 14:49
Originally posted by iemand iemand wrote:

I would go for Lifepo4 which are 1/3 of the weight or even less

I wish I Could but it's also 4 times the price !
Bruno

hanse 355 - 57

S/Y Spicy Ginger

White hull, 2 cabins, Volvo D1-30, Selden rig, removable mainsheet track system (modifications done now), Simrad-Jefa autopilot.
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Navegador View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Navegador Quote  Post ReplyReply Direct Link To This Post Posted: 01 September 2019 at 19:19
hay Bruno,

compensated by 150 Kg lead blocks on starboard, secured under starboard cabin seating locker.
Navegador H355 D1-30
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