Smart watch is a new generation of wearable smart products. It with multi function,such as message, Email, photograph and video chat function.
But the working time of battery is a problem. The old type battery has cycle life problem.Now, the rechargeable lithium battery solved all the problems, and more flexible in appearance and dimension. Most importantly, the lithium battery are environmental protection energy.,
Battery Specification
Model No.： DF403040PL 3.7V 450mAh
Nominal voltage： 3.7V
Rated capacity : 450mAh(0.2C discharge 2.8V)
Delivery voltage: 3.7~ 3.9V
Dimension ： 4.0*30*40mm (max)
Internal Resistance: ≤250mΩ
Weight ：18±1g
Output ： 1571♯28 Red+Black+White 3pins
Carried standard：GB/T 18287-2000
Warranty period： 12 months
Working temperature：0~45℃（charge），-20~60℃（discharge）
Charge cut-off voltage：4.2V
Standard charge current： 90mAh
Maximum charge current：450mAh
Discharge cut-off voltage：2.8V
Standard discharge current：225mAh
Maximum discharge current：900mA
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Lithium Polymer Battery
Life cycle characteristics:
