HP Compaq Presario CQ56-110US Battery Replacement - iFixit Repair Guide
Synergy Digital Laptop Battery, Compatible with Compaq Presario CQ56-102EG Laptop, (Li-ion, 10.8V, 4400mAh) Ultra High Capacity, Replacement for HP MU06 Battery - Walmart.com
Replacement Laptop Battery for 2000+ HP & Compaq Models | Battery Mart
Battery for HP Compaq Presario MU06 MU09 CQ42 CQ62 CQ56 Pavilion G7 G6 dv7-6000 | eBay