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LithiumWerks ANR26650M1-B, 3.3 Volt, 2.6 Ah, Lithium Iron Phosphate (LiFePO4) Battery using Li-Ion NanoPhosphate® Technology
Amazon.com: CT-ENERGY Rechargeable C Batteries 1.5V Lithium C Size High Capacity in 1500cycle 6000mWh 2.5H Fast Charging 2 Pack(Charger Not Included) : Electronics
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Welch Allyn OEM 2.5V 72000 Rechargeable Battery | Lite Source Inc.
2 PCS 3.7V 500mAh Lipo Rechargeable Battery JST 2.5mm 2Pin For GPS camera 602535 | eBay
Battery, Rechargable, 2.5V for PocketScope™ Ophthalmoscope, Each | McGuff Medical Products
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