But given the battery is 300 cycle rated it's likely gone.
If the laptop won't power up without the battery, then it's either broke or the charger is broke. Did you try it without the battery and the 60 second power reset noted in the CNET Laptop Troubleshooting forum sticky?
I have a HP Pavillion G6-2173sa, I have had i about 2 years, love it! About 6 months ago I had to purchase a new charger. No problems to start with and then just before christmas it started to get red hot after about 30 minutes of charging. Due to being near christmas, I couldn't afford another charger, so we were just putting on charge for 20-30 min at a time. This was working fine until about 3 weeks ago. I had a new charger on the way. The laptop died, so my partner put it on charge and after 15 min the charger went bang, taking the laptop with it. When the new charger go here, my laptop still wouldn't turn on.
So my question(s) are... will buying a new battery work?
will the hard drive of survived? shall I just take hard drive out and attach to new laptop?