Battery charges extremely slow

[avalancha]

Hi guys,

I've been searching the web for a while now but it's somewhat tricky to feed google the tearms of my search in a way it doesen't bring up issues about a slow computer.

Instead I need advice about a slowly charging battery, well, slow is a very nice description for what I'm experiencing here...
It startet about a week ago, my TravelMate 8573T charges to 20% in about 4 hours, 90% is not even reached after two days and nights. This came very much out of the blue, it was never the fastest to begin with (3-4 hours for full charge) but that was due to the large capacity I assume.

No recent (hardware) modifications were made
Windows 7 + Ubuntu 12.04 Dual Boot, both the same

Any ideas are much appreciated.
Same for links to topics I might not have found whilst my search.

Best regards,
Patrick

[squee666]

have you tried updating the bios?

3-4 hours to charge is long from new.

hell myacer 8930g has a 3hour charge max

[avalancha]

have you tried updating the bios?

On it, thx, talk to you in 3-5 hours when the battery is above 30% and ready for flashing...

[avalancha]

Well that didn't help so far, 10% plus in the last 2 hours, might be an improvement, we'll see overnight...

Any other ideas?

[avalancha]

we'll see overnight...

Alright, at least now it's charged to 99% till the morning, I'll try to calibrate it a couple of times now, maybe we'll see a result

Thanks so far

[downloads]

Check battery wear (compare current max capacity do battery's factory capacity). It may be dying or there may be an electrical issue with a circuit that controls charging.
I doubt it's PSU- you would have noticed that while performing daily tasks.

[staffy]

Hi, I have very same problem - same laptop, 8573TG. Did you find a solution? I tried updaing BIOS from april 2012, it didn't help. My friend has same laptop with same issiue, my other friend has 8473TG, same problem.
He wrote email to Acer support, they said it is battery's fault, but my has still 82% capacity of the new one. I used Aida64 to measure charging power, now it is only 1955mW, when laptop was new, it was about 15000mW! I think, only solution is to use warranty and send laptop to Acer.