The company has now added 54,000 batteries to that list, which were sold with notebooks nationwide from August 2007 through July 2008 for between $500 and $3,000. The expansion was prompted after HP received 38 additional reports of the batteries overheating, causing 11 minor injuries.
The following models were included in the recall dating back to May 14, 2009: HP Pavilion dv2000, dv2500, dv2700, dv6000, dv6500, dv6700, dx6000, dx6500, dx6700, dv9000, dv9500, dv9700, Compaq Presario, A900, C700, F500, F700, V3000, V3500, V3700, V6000, V6500, V6700, HP G6000, and G7000. The following models were added this May 19: HP Compaq 6510b, 6515b, 6710b, 6710s, 6715b, 6715s and 6720s.
HP has more information on current and past recalls here, complete with battery barcodes. Naturally, if your machine is affected, you're eligible for a new battery.