Amazon.com: Synergy Digital Vacuum Cleaner Battery, Compatible with Electrolux PQ91-P50MB Vacuum Cleaner, (Li-ion, 25.2V, 2000mAh) Ultra High Capacity, Replacement for AEG 4055478301 Battery : Home & Kitchen
Best Buy: Electrolux UltraPower Studio Cordless Lightweight Vacuum Deep Blue EL3000A
Electrolux UltraPower Cordless Vacuum - Sam's Club
Amazon.com: Synergy Digital Vacuum Cleaner Battery, Compatible with Electrolux Pure PI91 Vacuum Cleaner, (Li-ion, 7.2V, 3400mAh) Ultra High Capacity, Replacement for AEG OSBP72LI Battery : Home & Kitchen