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Author Topic: Testing Battery Output DC44, or Charger Fault?  (Read 115 times)

Online macman

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Testing Battery Output DC44, or Charger Fault?
« on: May 18, 2017, 01:48:30 PM »
I've got a DC44 in, which either has a charger fault or a dead battery. No power when the trigger is operated. When switched on, the body light flashes slowly, which indicates a flat battery. When battery is placed on charge, there is no light on the charger at all. It should be solid green when charging, off when charged. So does this indicate that the charger is faulty, or the battery has failed?
Charger: I can get a reading of around 24V on the 'max' terminals, but nothing on the 'normal' terminals. This would indicate a faulty charger.
but the problem is that I don't have another charger or battery to do a swap test, and don't want to tell the customer to get a new battery if it's only the charger (which is half the price of a battery). Is it the case that if the 'normal' charger circuit fails, then the battery will not charge?
How can I test the battery output-there are five terminals on it?
Is there any other way to narrow this down please?

Online Madrat

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Re: Testing Battery Output DC44, or Charger Fault?
« Reply #1 on: May 18, 2017, 02:47:24 PM »
You have answered your own question if you are only getting one voltage out of the charger then your charger is knackered.

Online macman

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Re: Testing Battery Output DC44, or Charger Fault?
« Reply #2 on: May 18, 2017, 02:52:58 PM »
Yes, but I'm not clear why the battery won't charge on the other voltage output (the Max circuit).
Of course, it could be that both have failed.


Online Madrat

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Re: Testing Battery Output DC44, or Charger Fault?
« Reply #3 on: May 18, 2017, 02:55:59 PM »
It could be that both have failed but we know the charger is faulty, so it will need changing ether way so try it first.

Online GeorgeJ

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Re: Testing Battery Output DC44, or Charger Fault?
« Reply #4 on: May 18, 2017, 04:30:52 PM »
It could be that both have failed but we know the charger is faulty, so it will need changing ether way so try it first.
I would follow this logic.  Despite any potential problem with the battery, we know the charger is faulty so change that first before proceeding.
You miss 100% of the Dysons you don't buy.  -Wayne Gretzky
 -Michael Scott  -GeorgeJ

Online macman

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Re: Testing Battery Output DC44, or Charger Fault?
« Reply #5 on: May 18, 2017, 04:33:35 PM »
Agreed, that is perfectly logical. Thanks.

 

 

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