Question about Wahl 9916-817 Beard Trimmer

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Is the centre terminal + or - (Charger plug) ?

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  • Wahl Master
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It is often marked on the specification sticker on the transformer plug.

Posted on May 15, 2014

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Posted on Jan 02, 2017

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2 Answers

My dell laptop isn't charging when plugged in. What should i do?


Dell chargers have a centre pin to allow the laptop to sense that the charger is a genuine Dell one. If the battery is not charging then:

a) Battery is faulty (old and dead)
b) Pin missing on the charger, wire broken or not original Dell device
c) Charging port on the laptop has become loose.

Hope this helps.

Jul 02, 2016 | Dell Inspiron Computers & Internet

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How to repair samsung NF110 not charging or no power


there are many solutions................................. one is change the charger, buy a new charger. . maybe plug which you have pinned is having some probs. maybe you needed a external plug point. or else give it to any SERVICE CENTRES!!!! best of luck and bye

Oct 16, 2013 | Samsung N Computers & Internet

1 Answer

What is the polarity of the power supply for the base charger ?


Standard design especially with chargers will depend on the plug. If it is a standard jack plug with the hole in the centre then the pin on the socket will be positive

Aug 07, 2012 | Datalogic BC-7030 Base/Charger

2 Answers

When ever i plug in my ac adaptor in laptop , the touchpad freezez,,, withouut ac power it works ok...


Take the battery out and try it. If that solves the problem then it means you need a new battery.

Mar 31, 2011 | Computers & Internet

1 Answer

When we plug the charger in, it will not charge what do we do to fix it , it is the plug not the charger!


Unfortunately my sony ericsson vivaz have this problem too. Fortunately, my phone is within the warranty period. You MUST send it to the Samsung Service Centre for manual repairing solution.

Jan 17, 2011 | Samsung Eternity Cell Phone

1 Answer

How do you change a battery in a 1999 chevy venture van


Assuming you have a battery charger. Do not plug charger in until after it is connected.
1. Open hood & locate battery.
2. Identify the positive terminal of the battery (usyally has a red cover or red marking.
The battery has side terminals (not posts like nonGM batteries)
4. Connect the + red clamp the the positive terminal wiggle it a little to get good connection.
5. Connect the negative black clamp to the engine block, a handy bracket on engine or the negative terminal on the battery. DO NOT CONNECT TO ALTERNATOR
6. Be sure connections are secure.
7. Plug in charger it should show charging. Leave it over night
8. Before disconnecting charger disconnect power to the charger.

THE FUMES OF A BATTERY ARE EXPLOSIVE DO NOT USE FLAMES NEAR BATTERY
DO NOT ALLOW SPARKS NEAR BATTERY!

Dec 08, 2010 | 1999 Chevrolet Venture

4 Answers

How do i connect a battery charger


I suppose this is what you want to know
The battery charger has 2 leads coming off it as well as the power lead to the external power source .THE TWO LEADS WITH CLAMPS ON GO TO THE BATTERY THE RED GOES TO THE POSITIVE TERMINAL PLUS SIGN AND THE BLACK GOES TO THE NEGATIVE TERMINAL.MINUS SIGN, THE POWER LEAD PLUGS INTO THE POWER. AND THAT IS ALL THERE IS TO IT..

Sep 10, 2009 | 2002 Mitsubishi Lancer

2 Answers

The little green light on charger goes off when i plug it into Dell Inspiron 6400, the charger works fine


Unplug the battery from the laptop and then plug the AC adaptor into the laptop. If the green light still goes off then your motherboard is shorting out the adaptor and the motherboard needs to be replaced.


May 17, 2009 | Dell Inspiron 6400 Notebook

4 Answers

On my camera the battery charger light is blinking and the battery is not charging


Before you get creative and directly plug your batter into an AC adapter, try something much easier first. I have the same problem with my Olympus 770SW batteries. As silly as it sounds, the charger will only work in a select few outlets in my house that I found by trial an error, actually pure frustration. I suggest, go around your house and plug the blinking charger in all the outlets and see if you find one that works. That sounds a lot less shocking than solution 1 and 2 now doesn't it? Good luck!

May 23, 2008 | Cameras

2 Answers

Acer travelmate 8204WLMi charging problem


the only repair centres are in uk that give you the turn your laptop arround in the time you need if you type in laptop repair centres in search browser and you get all repair centres listed. I've hunted for 20-30 mins on repairs to laptops in USA but not much available on your laptop model. good luck on finding a service centre for your laptop

Aug 15, 2007 | Acer TravelMate 8204WLMi Notebook

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