HP Compaq Presario CQ56-110US Battery Replacement - iFixit Repair Guide
Battery for HP Compaq Presario CQ42 CQ62 CQ56 CQ57 CQ58 CQ32 CQ72 Laptop 7800mAh | eBay
Synergy Digital Laptop Battery, Compatible with Compaq Presario CQ56-114EO Laptop, (Li-ion, 10.8V, 4400mAh) Ultra High Capacity, Replacement for HP MU06 Battery - Walmart.com
HP Compaq Presario CQ56-110US Disassembly - iFixit Repair Guide