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Old Mar 2, 2008 | 06:56 PM
  #1  
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Default Battery Tender Question

How can you tell if a "Battery Tender" is working properly.
It's new but I get no readings.
I hooked up my Craftsman Digital Meter to the ends that go on the battery terminals ( Positive and Negative Leads) and I get no reading.
The little light on the meter is on but could it be defective?
Why can't I get a reading or am I doing something wrong as I am not to bright when it comes to automotive electrical?
The meter is good because it reads OK on everything else I tested so I know there's no problem with the meter.
Any suggestions?
Thanks,
Kurt
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Old Mar 2, 2008 | 07:05 PM
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Follow manual for both multimeter and tender.

Not intended to be ignorant, but the multimeter should read the battery voltage. The tender should have green/red light indication, or light on/off indication.

What brand tender?
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Old Mar 2, 2008 | 07:10 PM
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Should be a fuse on the tender. Possibly blown
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Old Mar 2, 2008 | 07:13 PM
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when I plug my mone in the red light comes on, then it goes to green about 15 minutes later. My battery is fully charged when I plugged it in.

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Old Mar 2, 2008 | 08:05 PM
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Alot of these devices need to have a load on them before they will start charging the battery. You need to connect the leads to the battery, then take a reading with your meter. Better yet, take a battery reading without any connections, then hook up the tender and take a second reading. The second reading had better be higher than the first.

Good luck,
Dino
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Old Mar 2, 2008 | 08:36 PM
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The model is the same one shown in the picture above; its the "Battery Tender Plus" model with the green label.
I checked the fuse and it is good.
All the lights come on exactly as it says they should but I expected to be able to read some voltage or amperage at the leads end.
Maybe it is as 1stC3Vette said, and maybe it needs a load before it will provide a reading.
I had it plugged in on the bench and was trying to get a reading that way.
Thanks all for the input.
I appreciate it,
Kurt
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Old Mar 2, 2008 | 08:49 PM
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If you think you have a problem, this link has the troubleshooting for your unit.

http://batterytender.com/includes/la...ng_BT_Plus.pdf

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Old Mar 3, 2008 | 04:12 PM
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Check your leads. Sounds like one is disconnected.
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