| Vancouver Auto Chat 2016 VAC Community Head Moderator: Raid3n |
 | 
03-01-2014, 07:33 AM
|
#1 | | I WANT MY 10 YEARS BACK FROM RS.net!
Join Date: May 2005
Posts: 20,406
Thanked 7,468 Times in 1,445 Posts
Failed 2,380 Times in 472 Posts
| Battery voltage question
The car is only driven on the weekend. Just checked the battery voltage, it is showing 11.2v when parked in the garage, but when I warm up the car, the voltage goes back up to 14v. Is it the battery needs to be replaced? will I get warning light on the dash (it is a MB)?  | 
|  | |
03-01-2014, 09:27 AM
|
#2 | | Rs has made me the woman i am today!
Join Date: Jun 2002 Location: Vancouver
Posts: 4,461
Thanked 1,276 Times in 308 Posts
Failed 25 Times in 12 Posts
|
Seems like either your battery isn't holding a charge or something is draining it. A fully charged battery is theoretically 12.6V. Get the battery tested.
| |
| | |
03-01-2014, 10:33 AM
|
#3 | | 2x Variable Nockenwellen Steuerung
Join Date: Oct 2002 Location: N49.2 W122.1
Posts: 6,176
Thanked 1,174 Times in 704 Posts
Failed 67 Times in 51 Posts
|
Voltage is one of the symptoms, not the problem. Amperage is what you need to be measuring. Also HK is more humid, clean your battery connectors with a scotch pad and apply so dielectric grease to reduce oxidation.
If the car is only driven on the weekend, get one of those solar panels that plug into the cigarette socket, put it on your dash. Problem mitigated.
Most car dealerships would have http://www.ebay.com/itm/VW-SOLAR-PANEL-BATTERY-CHARGING-UNIT-/261406629326?pt=LH_DefaultDomain_0&hash=item3cdd0c9dcewhen new cars arrive.. so never hurt to ask.
Last edited by godwin; 03-01-2014 at 10:45 AM.
| |
| | |
03-01-2014, 01:44 PM
|
#4 | | I told him no, what y'all do?
Join Date: Aug 2006 Location: Vancouver
Posts: 10,169
Thanked 6,026 Times in 2,617 Posts
Failed 105 Times in 67 Posts
| Quote:
Originally Posted by godwin  If the car is only driven on the weekend, get one of those solar panels that plug into the cigarette socket, put it on your dash. Problem mitigated. | do they turn off if battery is fully charged? i was thinking more on the lines of one of these guys MotoMaster Eliminator Intelligent Battery Charger 12/8/2A | Canadian Tire
__________________ Feedback
http://www.revscene.net/forums/showthread.php?t=611711 Quote: Greenstoner
1 rat shit ruins the whole congee
originalhypa
You cannot live the life of a whore and expect a monument to your chastity | Quote:
[22-12, 08:51]mellomandidnt think and went in straight..scrapped like a bitch
[17-09, 12:07]FastAnna glowjob
[17-09, 12:08]FastAnna I like dat
| | |
| | |
03-01-2014, 01:52 PM
|
#5 | | Banned By Establishment
Join Date: Jan 2003 Location: Coquitlam, BC
Posts: 9,521
Thanked 1,289 Times in 409 Posts
Failed 407 Times in 100 Posts
|
If it goes up to 14v that means its charging. If your car starts, and the battery starts the car, its working. 13v is a fully charged battery.
| |
| | |
03-01-2014, 04:47 PM
|
#6 | | Wunder? Wonder?? Wander???
Join Date: Mar 2011 Location: Vancouv
Posts: 214
Thanked 106 Times in 46 Posts
Failed 14 Times in 6 Posts
|
drive your vehicle for for 45mins to charge up ur battery via the alternator. or buy a trickle charger to keep your battery charged when vehicle is not driven. battery lose voltage because of parasitic draw
note: because it is a MB, there is a lot of electronics on this vehicle. that may have cause a larger draw compare to average vehicles.
| |
| | |
03-01-2014, 04:49 PM
|
#7 | | 2x Variable Nockenwellen Steuerung
Join Date: Oct 2002 Location: N49.2 W122.1
Posts: 6,176
Thanked 1,174 Times in 704 Posts
Failed 67 Times in 51 Posts
|
I don't think so but because the panels are so week. I think they rate in mA the probability of overcharging is low.
If you are looking for a battery float charger, nothing beats CTek. Those Motomaster chargers are not the greatest. In my garage I use Ctek, then if worse come to worse I have a Motomaster Boosterpack (basically a lead acid battery). Then if worse come to worse BCAA platinium. Quote:
Originally Posted by GLOW | | |
| | |
03-01-2014, 06:54 PM
|
#8 | | I WANT MY 10 YEARS BACK FROM RS.net!
Join Date: May 2005
Posts: 20,406
Thanked 7,468 Times in 1,445 Posts
Failed 2,380 Times in 472 Posts
| Quote:
Originally Posted by IMASA Seems like either your battery isn't holding a charge or something is draining it. A fully charged battery is theoretically 12.6V. Get the battery tested. | The inspector said the battery needs to be replaced when I bought the car, but strange enough he said at this voltage the car can't be started or struggle to start. Anyway, I will get it replaced first. Thanks guys.
| |
| | |
03-01-2014, 08:10 PM
|
#9 | | Banned By Establishment
Join Date: Jan 2003 Location: Coquitlam, BC
Posts: 9,521
Thanked 1,289 Times in 409 Posts
Failed 407 Times in 100 Posts
|
Inspector gadget?
| |
| | |
03-02-2014, 08:44 AM
|
#10 | | RS Veteran
Join Date: Apr 2004 Location: Cold Lake, AB
Posts: 893
Thanked 4 Times in 3 Posts
Failed 0 Times in 0 Posts
|
Have you ever had to boost your battery? If so, the alternator will never be able to charge it back to 100%. If I were you I would go buy a battery charger, disconnect the leads (you can leave the battery in the car if you want) and give it a good, slow, low amp charge overnight and then reassess (if your battery is not a Maintenance-Free battery, then make sure the water is topped up with distilled water). If you notice the battery voltage drop again then you may have a draw. Also note that if your battery is dirty, it actually creates a bridge between the two posts (usually only a problem on top post) which will result in a small draw, so make sure it's clean. Also you can usually bring your battery in to a parts store and they will test it for you on their load tester.
If you are concerned about a parasitic draw, try this.
1) Leave your car off with key out, doors closed and everything in the normal position it would be in if you were leaving your car off in the parking stall, but with the hood popped.
2) If you have a hood light, disconnect it for the time being.
3) Disconnect the negative cable to the battery, leave the positive connected.
4) Take your multimeter, set it to DC Amps
5) Place one multimeter lead on the negative post on the battery, and take the other lead and place it on the now disconnected negative cable.
6) If you read amperage on the meter, that is a parasitic draw. Note that almost all vehicles have a small amount of draw with the vehicle off to keep the clock running, security systems and such.
7) To isolate where the draw is coming from, as you are watching the multimeter, start pulling fuses, one at a time, replacing them as you pull them. As you are pulling fuses, if you find that the amperage reading drops sharply when you remove one fuse, then you have found the circuit with the draw.
8) Once you have determined the circuit with the draw it should become fairly obvious what component is causing the draw, but if not, try and get the wiring diagram for your vehicle and again (make sure you have all the fuses back in at this point), one by one, start disconnecting components in that circuit until you find that drop in amperage again and then you have found your draw!
Sorry if this wasn't what you were looking for but more info is better than less.
__________________
86.5 Toyota Supra NA - Aristo 2JZ-GTE non-VVTI swap in progess
1992 Nissan Sentra Classic - Rusty daily driver
1994 GMC 1500 350 4X4 Status: Neverending Repairs
32,000 Lbs of thrust, max speed of Mach 1.8, M61A1 Vulcan cannon, missile and bombs galore. Rival? The Genus Larus "seagull"
Last edited by AVNGinger; 03-03-2014 at 09:31 AM.
| |
| | |
03-02-2014, 01:33 PM
|
#11 | | OMGWTFBBQ is a common word I say everyday
Join Date: Oct 2008 Location: Coquitlam
Posts: 5,324
Thanked 3,782 Times in 1,242 Posts
Failed 533 Times in 187 Posts
|
Get a trickle charger, problem solved
__________________
'16 Ram 1500
| |
| | |
03-02-2014, 04:40 PM
|
#12 | | I subscribe to the Fight Club ONLY
Join Date: Feb 2002 Location: Coquitlam
Posts: 7,091
Thanked 2,112 Times in 264 Posts
Failed 61 Times in 29 Posts
| Quote:
Originally Posted by Supra-Kid Have you ever had to boost your battery? If so, the alternator will never be able to charge it back to 100%. | Back in the day when i had a 1400+ watt RMS amp + Kicker L7 i was doing a motormaster warranty replacement about every year 
Kill it multiple times and it will never be the same.
| |
| | |
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off
| | |
All times are GMT -8. The time now is 11:13 AM.
|
You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
The banners on the left side and below do not show for registered users!
