1. Home
  2. Electronics Repair
  3. Can't charge my laptop battery

Can't charge my laptop battery

Hello,

Back from work yesterday, I found a laptop in a trash (Maxdata Pentium IV, 45Gb HDD, DVD R/RW, 15" display). The RAM was missing, but this laptop uses standard DDR memory. The laptop also comes with a power adapter (20V DC / 6A)

The battery was charged enough to boot the laptop up, but I'm not able to charge it again. When I plug the power cord in the laptop, the LED on the power adapter starts the blink and I can hear a small buzz. The buzz comes also from the computer and it smells like hot electronic components (so I removed the power cord). I tried this with and without the battery : same result !

I can't say if the power adapter is dead or if the power input unit of the computer needs to be repaired.

Here are some questions :

- Can I easily change the power input unit of a laptop ? I don't think so but ...

- Do some generic battery charger units exist and do you know where to find them ?

- Do you know how to bypass the power input unit of a laptop to charge the battery inside the computer ?

Please excuse my English, my mother language is French.

Thanks !

Greg

Reply to
Greg L.
Loading thread data ...

I once fixed a laptop that could not charge its battery by replacing a Picofuse (a tiny fuse). Look for these:

formatting link

There may be even smaller fuses now.

Reply to
mc

I just fixed one with a similar problem last night, the solder joints at the power jack had cracked and were arcing, the whole connector got pretty hot and it melted the plastic a bit. It could also be a shorted component in the charging circuit.

Reply to
James Sweet

Thanks for your replies !

I hope I'll be able to see what's wrong on the motherboard. I don't think that the problem comes from the power adapter, but I'll test it tomorrow.

Greg

James Sweet a =E9crit :

Reply to
Greg L.

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.