myHanse.com - Hanse Yacht Owners Website myHanse.com - Hanse Yacht Owners Website myHanse.com - Hanse Yacht Owners Website myHanse.com - Hanse Yacht Owners Website
Welcome to myHanse.com the forum for Hanse Yachts owners throughout the world.
Forum Home Forum Home > Hints & Tips > 445/455/458
  New Posts New Posts RSS Feed - Start & service parallel battery relay
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Start & service parallel battery relay
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
roberto_b View Drop Down
Sub Lieutenant
Sub Lieutenant


Joined: 06 January 2020
Location: Italy
Status: Offline
Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote roberto_b Quote  Post ReplyReply Direct Link To This Post Topic: Start & service parallel battery relay
    Posted: 30 May 2023 at 09:48
Hi,
on my 445 i see there is a power relay to make emergency parallel from service batteries to engine starter battery, is located near main battery switch,(battery box) but no information on how to drive this relay. Also on diagram (relay named 7K1) is not clear how this realy is drived,  anyone know it ?

thank
Back to Top
marsella View Drop Down
Commander
Commander


Joined: 21 June 2022
Location: Antigua Jolly H
Status: Offline
Points: 110 		Post Options Post Options   Thanks (1) Thanks(1)   Quote marsella Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2023 at 10:13
This one is WhisperPower battery combiner WBL 160, its not emergency relay, it allows engine/house batteries to charge separately/together from the charging sources.
Back to Top
roberto_b View Drop Down
Sub Lieutenant
Sub Lieutenant


Joined: 06 January 2020
Location: Italy
Status: Offline
Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote roberto_b Quote  Post ReplyReply Direct Link To This Post Posted: 06 June 2023 at 19:40
Thank Marsella, now it's more clear. Usefu information for future when i will move on LiFePo4 battery.
r.
Back to Top
marsella View Drop Down
Commander
Commander


Joined: 21 June 2022
Location: Antigua Jolly H
Status: Offline
Points: 110 		Post Options Post Options   Thanks (0) Thanks(0)   Quote marsella Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2023 at 03:50
Thats right, for Li setup this needs to be replaced by Victron Cyrix-ct battery combiner, specs are close but this one can be shut down in case of overcharging, etc


Cheers!
Back to Top
S&J View Drop Down
Admiral
Admiral
Avatar

Joined: 30 August 2014
Location: Perth WA / Med
Status: Offline
Points: 1125 		Post Options Post Options   Thanks (0) Thanks(0)   Quote S&J Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2023 at 20:22
You probably have a 85Ah starter battery that is only used for a few seconds before the engine starts and then the alternator recharges the starter battery.
Unless the starter battery is defective in some way I doubt that there would ever be a need to use a bridge to the domestic batteries.
H458 #159 Primal Mediterranean cruising
Back to Top
Fendant View Drop Down
Admiral
Admiral


Joined: 03 November 2012
Location: Switzerland
Status: Offline
Points: 1593 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fendant Quote  Post ReplyReply Direct Link To This Post Posted: 09 June 2023 at 09:32
Objection Stuart Ouch

AGM's unfortunately have a the "sudden death" failure mode. They might have started the engine in the morning as usual, but reject to deliver the power in the evening ( happened to me 4 years ago, when I was approching a harbor in gusty winds ).
Luckily I had rigged the override switch, a quick die below, push a button and engine was started with the additional power from the service battery.
Rigging a (long) jump start cable from starter might be an option, takes longer, has an inherent electrical risk and needs a 2nd person in cockpit to start the engine as companion way needs to be open to access starter batt, before disconnecting.
Frank
Back to Top
Fendant View Drop Down
Admiral
Admiral


Joined: 03 November 2012
Location: Switzerland
Status: Offline
Points: 1593 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fendant Quote  Post ReplyReply Direct Link To This Post Posted: 09 June 2023 at 09:35
Originally posted by Fendant Fendant wrote:

Objection Stuart Ouch

AGM's unfortunately have the "sudden death" failure mode. They might have started the engine in the morning as usual, but reject to deliver the power in the evening ( happened to me 4 years ago, when I was approaching singlehanded a harbor in gusty winds ).
Luckily I had rigged the override switch, a quick dive below, push a button, back to cockpit and engine was started with the additional power from the service battery.
Rigging a (long) jump start cable from starter might be an option, takes longer, has an inherent electrical risk and needs a 2nd person in cockpit to start the engine as companion way needs to be open to access starter batt. You can't go on with the flying poer cable connection, this unsafe installation needs disconnecting.
Frank
Back to Top
stulk75 View Drop Down
Lieutenant
Lieutenant


Joined: 25 November 2020
Status: Offline
Points: 46 		Post Options Post Options   Thanks (0) Thanks(0)   Quote stulk75 Quote  Post ReplyReply Direct Link To This Post Posted: 21 June 2023 at 12:25
I do not know if this is standard, but we have a switch to join the house and starter batteries together, or to use the house to start the engine.  It is located in the port couch in the salon.  It is useful to have for that rare occasion when it is needed.  Which we did earlier this season. Our starter battery is tucked way up over the engine and is not easy to get to.
   
Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.203 seconds.
Links : www.hanseyachts.co.uk www.hanseyachts.com www.fjordboats.co.uk www.dehler.co.uk www.varianta.co.uk