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help please battery charger


frankS

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Hi all. I have a smallish battery charger that does the job most times for charging ordinary battery's , however to charge small battery for powering my NBN back up the charger doesn't appear to work. I have 2 of these battery's that I alternate between each other when needed and have another charger that charges them.

33975960_batterycharger1.thumb.jpg.c1b2f1af9fabe834aae4d8761e1dca61.jpg

369569565_batterycharger2.thumb.jpg.6cab4f84c120aa5013fb723c33fd7ba2.jpg

The charger doesn't light up any of the charge modes and was wondering if anyone could explain to me why this is, and if there is something I am doing wrong ?.

Sorry for the out of focus pictures .

Frank

 

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My first thought is the clips are not actually touching the battery terminal(s). There may be a plastic lip on the ends that keeps the metal of the clip away from the terminal.

 

Are you saying you have a third charger that DOES charge the NBN battery(s) ?

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Hi Frank, It looks a bit similar to my Ctek.

You have power but have you tried to actually change the mode?

 

I have to select the right mode to start charging, Eg press mode until it lights up 12v

 

Hope that helps.

Edited by kingie chaser
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4 hours ago, dmck said:

My first thought is the clips are not actually touching the battery terminal(s). There may be a plastic lip on the ends that keeps the metal of the clip away from the terminal.

 

Are you saying you have a third charger that DOES charge the NBN battery(s) ?

All good connections. Thanks for your reply. I have another 1 charger.

Frank

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2 hours ago, kingie chaser said:

Hi Frank, It looks a bit similar to my Ctek.

You have power but have you tried to actually change the mode?

 

I have to select the right mode to start charging, Eg press mode until it lights up 12v

 

Hope that helps.

Kingie. I have played with the mode button but still no go.

Frank

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1 hour ago, Smobaby said:

If the battery is dead flat the newer charges won’t work they need a minimum charge to activate the charger. Try jumper leads to a good battery then connect the charger.

Think you may be on the money here. I will try the jumper leads thing tomorrow. Thanks for the suggestion. Something I didn't think of.

Frank

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