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Synergy Digital Laptop Battery, Compatible with Compaq Presario CQ56-133EF Laptop, (Li-ion, 10.8V, 6600mAh) Ultra High Capacity, Replacement for HP MU06 Battery - Walmart.com
New Battery For HP Compaq Presario CQ42 CQ57 CQ72 CQ56 MU06 MU09 593555-001 DM4 | eBay
HP Compaq Presario CQ56-110US Battery Replacement - iFixit Repair Guide
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Synergy Digital Laptop Battery, Compatible with Compaq Presario CQ56-112NR Laptop, (Li-ion, 10.8V, 8800mAh) Ultra High Capacity, Replacement for HP MU06 Battery - Walmart.com
Battery for HP Compaq Presario CQ42 CQ62 CQ56 CQ57 CQ58 CQ32 CQ72 Laptop 7800mAh | eBay
Synergy Digital Laptop Battery, Compatible with Compaq Presario CQ56-133EF Laptop, (Li-ion, 10.8V, 6600mAh) Ultra High Capacity, Replacement for HP MU06 Battery - Walmart.com