vpower.hk 48v 5amp charger repair needed model KP-667

mongroove

1 µW
Joined
Aug 24, 2009
Messages
3
Hello,

I purchased a 48v 20ah lifepo4 pack from vpower on eBay. After waiting about a month I received the battery pack and 2 amp charger. As soon as I connected the charger it blew, I think it was because it was an SLA charger they sent me. I contacted vpower and they sent me another charger a 48v 5amp lifepo4 charger for $30.00 and received it in about 2 weeks and began using it. Today I got home and went to charge the battery pack and noticed the charger was totally off, I thought it was unplugged but it wasn’t. I opened the charger and noticed a burn and crack mark on what I think is a ceramic capacitor. This question goes out to anyone that can help me fix it, I have included some pictures so who ever responds can get familiar with which product I am writing about. I need to find the value or specs of the black ceramic capacitor, see below for pictures. Sorry about the quality if you need better pictures I should have a better camera later tonight.

This is the charger as seen on eBay http://i20.ebayimg.com/08/i/001/55/f7/501d_12.JPG
This is what it looks like http://www.infotroop.com/chargercover.jpg

This is what the charger looks like inside http://www.infotroop.com/chargerinsides.jpg

And this is the black ceramic capacitor I need to find the value of; it’s located on the wall plug side behind the fuse http://www.infotroop.com/xblow-resister-next-to-fuse.jpg and http://www.infotroop.com/blow-resister-next-to-fuse-.jpg

Thanks
 
I finally got in touch with vpower last night and he explained the thermistor is an NTC thermistor 5D-13. Now the problem i have is finding one, any ideas????
 
I changed the thermistor on my first charger, but the burnt component was just masking an underlying problem. The transformer windings were shorting.
 
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