Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.



75 posts

Master Geek
+1 received by user: 2


Topic # 143383 13-Apr-2014 03:43 Send private message

Is it possible to test an alternator of a car using this cigarette lighter accessory?:

http://jaycar.co.nz/productView.asp?ID=PP2142&form=CAT2&SUBCATID=1052#7

Has anyone used one of these before?

Create new topic
2698 posts

Uber Geek
+1 received by user: 399


  Reply # 1024252 13-Apr-2014 06:56 Send private message

It will give a basic indication as to alternator output voltage, but it won't be able to conduct a high current load test on the battery.

11125 posts

Uber Geek
+1 received by user: 551

Trusted
Subscriber

  Reply # 1024516 13-Apr-2014 20:12 Send private message

You can get an actual volt meter one off ebay for about $3 including china airmail so I would pass on that overpriced jaycar offering.

You can see the voltage at the lighter socket and use it as a guide as to if the alternator is producing, but it will not be as accurate as a meter straight on the battery as you will have voltage drop across all the connections which might show you a good voltage but the battery isnt getting it all. Often starting is uneffected by bad connections as there is a seperate lead from the battery to the starter so you can have massive voltage drops in the rest of the loom but it cranks over fine.




Richard rich.ms

Create new topic




Twitter »
Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





Trending now »

Hot discussions in our forums right now:

Speed limit when overtaking? Teach me please.
Created by nakedmolerat, last reply by hio77 on 23-Oct-2014 23:34 (19 replies)
Pages... 2


$39 iPhone plan goneburger
Created by MadEngineer, last reply by MadEngineer on 23-Oct-2014 22:23 (17 replies)
Pages... 2


Spark Socialiser
Created by freitasm, last reply by freitasm on 22-Oct-2014 18:39 (34 replies)
Pages... 2 3


American legal jurisdiction in New Zealand
Created by ajobbins, last reply by gzt on 21-Oct-2014 14:58 (30 replies)
Pages... 2


iPad Air 2 and iPad Mini 3. Gonna get one?
Created by Dingbatt, last reply by Handle9 on 23-Oct-2014 21:53 (101 replies)
Pages... 5 6 7


Snap have failed our company!
Created by dafman, last reply by kornflake on 23-Oct-2014 17:41 (37 replies)
Pages... 2 3


Thief taunts 12 year old via stolen laptop
Created by macuser, last reply by charsleysa on 22-Oct-2014 23:49 (12 replies)

Another Trade Me competitor: SellShed
Created by freitasm, last reply by freitasm on 23-Oct-2014 19:00 (44 replies)
Pages... 2 3



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.