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 and Tips > 385
  New Posts New Posts RSS Feed - Battery Problem
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Battery Problem

 Post Reply Post Reply Page  12>
Author
Message
Axel View Drop Down
Lieutenant
Lieutenant
Avatar

Joined: 08 May 2016
Location: Ugljan/Croatia
Status: Offline
Points: 39
Post Options Post Options   Thanks (0) Thanks(0)   Quote Axel Quote  Post ReplyReply Direct Link To This Post Topic: Battery Problem
    Posted: 15 July 2018 at 12:14
Dear Hanse friends,

Yesterday I came back to the boat after 6 weeks and I discovered that my batteries have lost 214 Ah of capacity.
The voltage was 11.8 V. My Victron battery controller showed 0.00 A current. When I left the boat 6 weeks before the main switch was off and the victron showed also 0.00 A. In the mean time the victron registered the loss of 214 Ah. How can this happen? I know that the VHF works without the main switch and the light at the entrance. Both were off.
Is there any other part consuming electricity? Has anybody made a similar experience?

Greetings from Ugljan, Croatia

Axel



Axel
Back to Top
Wayne's World View Drop Down
Rear Admiral
Rear Admiral
Avatar

Joined: 18 July 2012
Location: Cruising
Status: Offline
Points: 540
Post Options Post Options   Thanks (0) Thanks(0)   Quote Wayne's World Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2018 at 15:47
Axel,

Your bilge pump/s are connected straight to your power source and will run with all battery switches turned off. Could you have had water in the boat? Have you check the bilges? Check the bilge pumps are able to run by moving the float switches. If they don't run they may have had a fault and kept running until they burnt out?
Wayne W
Cruising, currently in the Mediterranean.
Back to Top
Konstantin View Drop Down
Captain
Captain


Joined: 24 August 2014
Status: Offline
Points: 181
Post Options Post Options   Thanks (0) Thanks(0)   Quote Konstantin Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2018 at 17:59
I got my batteries drained completely on 445 once when leaving the boat I closed all secocks and coming back I found that aircon condensation sump pump was wired around the kill switch and so kept going pushing water into closed seacock until the juice ran out from the service bank. 750 Eur lesson right there.
Back to Top
Axel View Drop Down
Lieutenant
Lieutenant
Avatar

Joined: 08 May 2016
Location: Ugljan/Croatia
Status: Offline
Points: 39
Post Options Post Options   Thanks (0) Thanks(0)   Quote Axel Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2018 at 18:21
Dear Wayne,

I checked the bilge pump. Everything ok. Bilge is dry. Pump is working properly.

Dear Konstantin ,

this sounds serious! The seacock was closed. You are sure that the condensation pump of the aircondition is not connected to the main switch? Our batteries are not yet destroyed,  but nearby.

Greetings
Axel
Back to Top
Jeremy View Drop Down
Lieutenant
Lieutenant
Avatar

Joined: 28 February 2018
Location: Auckland NZL
Status: Offline
Points: 30
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jeremy Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2018 at 19:41
Hi Axel,
Ive just had to replace my AGM batteries. They were 5 years old and I found that when they were left with no charging sources connected they would self discharge at an alarming rate.
When I got the batteries tested at full charge one was at 35 amp hours and one at 41. Both are 165ah batteries. This all happened very fast, not a slow deterioration at all. So it may pay to check your battery health.

Failing that. Find the shunt for the battery controller. Are there any other negative sources connected before the shunt on the battery side? There shouldn't be, because if there are their current wont be measured on the controller. The battery will drain but the meter will just show 0 amps.
Back to Top
Konstantin View Drop Down
Captain
Captain


Joined: 24 August 2014
Status: Offline
Points: 181
Post Options Post Options   Thanks (0) Thanks(0)   Quote Konstantin Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2018 at 20:08
Hi Alex, yes unfortunately, I found out the hard way. When I connected shore power the first buzz I heard was the aircon sump pump helplessly trying to pump the water through the seacock I closed myself 2 weeks earlier. That happened last year so the scar on my heat healed )))
As for the batteries I now run "dead-cell test" regularly to check if I have a faulty cell in the batteries developing. Google it or look here https://www.aussiebatteries.com.au/blog/how-to-troubleshoot-deep-cycle-battery-issues/
Back to Top
PeggyLeon View Drop Down
Sub Lieutenant
Sub Lieutenant


Joined: 31 August 2018
Status: Offline
Points: 1
Post Options Post Options   Thanks (0) Thanks(0)   Quote PeggyLeon Quote  Post ReplyReply Direct Link To This Post Posted: 31 August 2018 at 20:15
Hi...i got a new charger installed and the installer did not put the settings via laptop for battery type etc, but I do not believe that this is the reason as they were not "cooked". Maximum charging is 14.5 Volt which is line for AGMs. Now the charger goes to absorption and float within minutes. As we have no shore power I can not use the float for a couple of hours to see if they fully charge.



Edited by PeggyLeon - 19 September 2018 at 20:59
Back to Top
Axel View Drop Down
Lieutenant
Lieutenant
Avatar

Joined: 08 May 2016
Location: Ugljan/Croatia
Status: Offline
Points: 39
Post Options Post Options   Thanks (0) Thanks(0)   Quote Axel Quote  Post ReplyReply Direct Link To This Post Posted: 15 October 2018 at 18:19
After returning to the boat after 8 weeks, the batteries were still full. I kept the sea valve of the aircon open. It seems that this was really the reason.

Greetings  from Croatia sitting in the rain

Axel
 
Axel
Back to Top
iemand View Drop Down
Vice Admiral
Vice Admiral
Avatar

Joined: 13 February 2004
Location: Germany
Status: Offline
Points: 838
Post Options Post Options   Thanks (0) Thanks(0)   Quote iemand Quote  Post ReplyReply Direct Link To This Post Posted: 16 October 2018 at 19:22
Once I had the same problem when I keped the Victron Multiplus on the wrong setting! 
Hanse 312 MJ 2004 - Hanse 370e MJ 2007
Back to Top
Joey D View Drop Down
Sub Lieutenant
Sub Lieutenant


Joined: 27 June 2018
Location: Florida
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote Joey D Quote  Post ReplyReply Direct Link To This Post Posted: 19 October 2018 at 21:56
Question:  Are the forward and aft bilge pump inside the plastic box for the Air Conditioner condensation? One of my units won't stop running when I turn the DC panel on and there is no water in the box??  Thanks for any help  Joe
Back to Top
 Post Reply Post Reply Page  12>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.04
Copyright ©2001-2015 Web Wiz Ltd.

This page was generated in 0.031 seconds.

Links : www.hanseyachts.co.uk www.hanseyachts.com www.fjordboats.co.uk www.dehler.co.uk www.varianta.co.uk