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23.07.2013, 13:55 | 1 |
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Protected NCR18650B (Panasonic Battery Cell) 17.59$+free shipping
3.7V 3400mAh NCR18650B Protected Rechargeable Lithium Battery(Panasonic Battery Cell)-2 pack
Link : http://wallbuys.com/Product... Price: $17.59+free shipping Details: Brand: - Capacity: 3400 mAh Type: Lithium 18650 Maximum Voltage: 4.2 V Minimum Voltage: 2.5 V Rated Voltage: 4.2 V Features: Come with 2 pack Protected Rechargeable Overcharge & Over-discharge protection Dimension: 18.1x69.4x18.1 mm Weight: 48 g here is a review about it : Cells arrived “professionally” packed in 2 pink rubber iPhone cases. I’d still prefer a normal 18650 case though. Cells were at 4,17 after some rest when fully charged. I believe if I used lower termination current and lower discharge values, I could squeeze out the last 100-200 mAh. The last 100 mAh is probably not there or very hard to reach. At voltage below 3V, direct driven flashlights will only glow. So these are obviously genuine unused batteries since no other cell has such capacity nowadays. Short circuit protection works and resume immediately. Tried high load at 4,25A so the cut-off is higher. Maximal diameter is 18,7mm. Lenght is 70mm sharp including the button. |