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Solar LiPoly charger will not indicate completed charge
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Please be positive and constructive with your questions and comments.

Solar LiPoly charger will not indicate completed charge

by Halibutter on Tue Dec 17, 2013 4:45 pm

I've been working with a combination of a MintyBoost v3 and the solar/USB/DC lipoly charger available here:

http://www.adafruit.com/products/390

I've built several iterations of this kit, and have come across a solar/USB/DC lipoly charger that will not indicate when the battery has been successfully charged (ie, the green LED will not light).

The amber "charge" LED will light just fine, as will the red "power" LED.

Is the charger defective?

Thanks for your help.

-DT
Halibutter
 
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Re: Solar LiPoly charger will not indicate completed charge

by adafruit_support_bill on Tue Dec 17, 2013 5:40 pm

What battery are you charging and what is the voltage measurement across the battery leads?

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Re: Solar LiPoly charger will not indicate completed charge

by Halibutter on Tue Dec 17, 2013 5:54 pm

I'm using this 2500mah battery:

http://www.adafruit.com/products/328

The voltage reading is right around 4.2V. I've used both a USB and 5V DC power source with similar results.
Halibutter
 
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Re: Solar LiPoly charger will not indicate completed charge

by adafruit_support_bill on Tue Dec 17, 2013 6:14 pm

Does the same cell show up as charged when connected to the other chargers?

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Re: Solar LiPoly charger will not indicate completed charge

by Halibutter on Tue Dec 17, 2013 6:34 pm

I will do this test tonight and report back. Thanks!
Halibutter
 
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Re: Solar LiPoly charger will not indicate completed charge

by Halibutter on Wed Dec 18, 2013 1:00 pm

The battery charges perfectly with other chargers, and trips the "charged" LED as it should. I've tried other batteries with the charger that doesn't indicate a completed charge, and they all fail to trip the green LED--the amber "charging" LED simply turns off.

It seems I have a finicky charger? What are my options now?

-DT
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Re: Solar LiPoly charger will not indicate completed charge

by adafruit_support_bill on Wed Dec 18, 2013 1:21 pm

OK. That confirms that it is the charger and not the battery. If you contact support@adafruit.com with a link to this thread we can send you a replacement.

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Please be positive and constructive with your questions and comments.