Cruisers Forum

Join CruisersForum Today

  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
Thread Tools Search this Thread Rate Thread Display Modes
Old 03-10-2015, 03:46   #1
Registered User

Join Date: Nov 2011
Location: France in summer, aboard GALAWA in Caribeans in winter.
Boat: Catamaran PRIVILEGE 435
Posts: 107
Biased battery manager

I have a WAECO battery manager which measures Amps charging and discharging from the service battery and computes/displays the state of discharge of said batteriy in Ampxhours.
To this effect net Amps are measured from a shunt on the - pole of the battery bank.
Unfortunately, the battery manager either underestimates the charging current or over estimates the discarging current: After a week it displays say 300 Amp x h discharge when the battery is actually fully charged and the MPTT in float mode.
I then reset the battery manager to zero discharge.... and a week later it displays again 300 Amp x h discharge when the battery is fully charged.
Could someone advise?
Beyond our expensive yachts and powerfull tenders, beyond the beach front bar, live the real inhabitants of the land we mean to visit.....
GALAWA is offline   Reply With Quote
Old 03-10-2015, 10:10   #2
Registered User

Join Date: Jun 2013
Location: canada
Posts: 2,860
Re: Biased battery manager

Are you sure the shunt is in the right place? There should be nothing between the shunt and battery neg post. Sounds like your solar might be in front of it.
smac999 is online now   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Would You Hire a Project Manager Chief Engineer Construction, Maintenance & Refit 15 04-06-2010 00:27
Marina Manager wanted GordMay Boat Ownership & Making a Living 4 03-11-2008 08:52
SALES MANAGER BLUE SEA SYSTEMS GordMay Boat Ownership & Making a Living 0 28-03-2008 04:36
I'm not Biased Alan Wheeler General Sailing Forum 12 14-02-2006 01:39

Advertise Here

All times are GMT -7. The time now is 21:54.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.