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Factory Price Rechargeable 3.7V 7.4V 12V 4400mAh 18650 Li Ion Battery Pack for Digital Products - China Lithium Battery, 11.1V Lithium Battery | Made-in-China.com
Source 18650 2S2P lithium ion battery pack 7.4V 4400mAh for solar street lights on m.alibaba.com
Portable Accumulator 7.4V with High Capacity 4400mah Battery for Drones etc | eBay
Cleaner Battery (2 Units) Replacement for Neato 205-0001, 945-0005, 945-0006 for - 4400mAh, 7.4V, Li-ion | 888302399