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Product model: 251214P. Nominal capacity: 30MAH. Product size: thickness 2.5mm (+ 0.2mm) width 12MM (+ 0.5mm) * length 14MM (+ 0.5mm) Rated voltage: 3.7V. Charging voltage: 4.2V. Charging temperature: -30 C ~ 40 C. Discharge temperature: -30 C ~ +60 C. Storage temperature: -20 C ~ +30 C. If you need to add connector,we can add for you for all batteries from our store.