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Lithium Ion Polymer Battery - 3.7v 2500mAh
BigM 3.7v 2000mAH Lithium Ion 18650 Rechargeable Battery – bigmcanada.com
18500 li-ion Battery 3.7V 1400Mah ICR18500 Lithium Rechargeable Battery for LED Flashlights 6pcs(They are not 18 * 65mm Size Battery Also not aa Size Battery) : Amazon.ca: Health & Personal Care