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PKCELL Flat Top 18650 3.7V 3350mAh Rechargeable Li-Ion Battery
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Amazon.com: PKCELL ICR18500 Battery 3.7V 1400mah Li-Ion Rechargeable with Button Top 6PC(They are not 1865mm Batteries Also Not AA Size Battery) : Health & Household
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Lithium Ion Rechargeable Battery - 18650 - 3200 mAh - 3.7 V – GuardDogSecurity