Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-13-2020, 04:04 PM   #1
New Member
 
2020 16' Caravel
okatie , South Carolina
Join Date: Jul 2020
Posts: 1
Batteries rapidly discharging

I just bought a new Caravel 16 with 2 Interstate Deep Cycle 80AH batteries. Charging them with shore power shows 13.4v on the meter in the camper, reducing to 13v after several hours. When fully charged and unplugged from shore power it shows 12.7v. Then, with EVERYTHING turned off (except the battery kill switch) (no refrig, water pump, fan, light, etc.) it goes to 12.1v within 36 hours; basically almost fully discharged. I took the batteries to an Interstate dealer who checked them and said they are ok. Any ideas of what could be causing the discharge? thanks
__________________

rickkilme is offline   Reply With Quote
Old 07-13-2020, 07:20 PM   #2
Rivet Master
 
1986 31' Sovereign
Miami , Florida
Join Date: Feb 2004
Posts: 2,341
Blog Entries: 13
You have a ghost load. The propane detector is probably on all the time but that is a fairly tiny draw. The control boards for the reefer and the hot water heater draw a little. If you have a powered subwoofer, that is a bit of a power hog. Bottom line, if you canít leave it plugged in, you. Need a to pull a battery lead or install a battery switch.

A fully charged lead acid battery should read 12.6 volts at rest (it will read higher just after charging). 12.2 is pretty much as low as you want to go without shortening its life.
__________________

__________________
new (usually dirty) Nissan Titan XD (hardly paid for)
Middle-aged Safari SE
Young, lovely bride
Dismissive cat
n2916s is offline   Reply With Quote
Old 07-13-2020, 07:40 PM   #3
Rivet Master
 
2018 25' International
Slidell , Louisiana
Join Date: Sep 2017
Posts: 1,580
Just to add a bit more info, we can figure you used about 45-50% of available power based on your description so let's say 80Ahr. 80/36 is about 2.2 Amps. My rig on shore power uses about 0.8-1.0 amps to run all the always on passive things, so as n2916s indicated you may have maybe a 1-1.2 amp phantom load. The inverter generally draws about .7 in standby, check that. Perhaps a light or two in one of the compartments. 2.2 amps seems a touch high for all the passive loads.
__________________
Brian
BayouBiker is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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
Gel Batteries are Discharging too Quickly. iamwalmas Electrical - Systems, Generators, Batteries & Solar 28 11-07-2018 05:26 PM
RVs Depreciating rapidly XL390 John H. Flat-Front (Cutter, Clipper, XC, XL & Skydeck) Motorhomes 6 09-08-2011 03:56 AM
Discharging batteries jamesiboles Batteries, Univolts, Converters & Inverters 3 04-24-2009 02:49 PM
Batteries Discharging to Quickly Paul Dobbin Land Yacht/Legacy Motorhomes 23 08-20-2008 05:27 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 01:04 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.