That is most likely exactly what happened here. The battery caught fire and burned the seat:
Lithium Ion and Lithium Ion Polymer batteries, ounce for ounce, are the best rechargeable batteries that are widely available and are in use in cell phones.
The also tend to catch fire and burn vigorously when they get too hot... sometimes they even explode. There was an indeterminate number of Dell laptops that suffered this and approximately 0.3% of failed batteries in Macs would do this.
Yeah, our products are top of the line. We have to charge shitloads because our products are so good.
OH WAIT!
You use cheap Asian labor
You don't follow safety protocols (Foxconn)
AND YOUR BATTERY LIFE CAN SUCK MY DICK! OH WAIT, IT'S TOO SHORT! IT'LL GAG ON IT BEFORE IT CAN GET THE FIRST CENTIMETER IN!
Lithium Ion and Lithium Ion Polymer batteries, ounce for ounce, are the best rechargeable batteries that are widely available and are in use in cell phones.
The also tend to catch fire and burn vigorously when they get too hot... sometimes they even explode. There was an indeterminate number of Dell laptops that suffered this and approximately 0.3% of failed batteries in Macs would do this.
Basically, a massive pile of overpriced burnt crap.
OH WAIT!
You use cheap Asian labor
You don't follow safety protocols (Foxconn)
AND YOUR BATTERY LIFE CAN SUCK MY DICK! OH WAIT, IT'S TOO SHORT! IT'LL GAG ON IT BEFORE IT CAN GET THE FIRST CENTIMETER IN!