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• 　Medical Instruments Battery
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Medical device battery pack (24V 5200mAh)
Combination: 18650-7S2P
Nominal Voltage: 3.7V
Nominal Capacity: 5200mAh
Standard continuous dicharge current: 2.5A
Maximum continuous discharge current: 5A
Working Temperature: Charge: 0~45℃；Discharge: -20~60℃
Dimension: MAX57*80*91mm
Cycle Lifetime: 500 times
Finished Product Resistance: ≤150mΩ
Output: 3239/18AWG length 60mm（customizable）

Design scheme of battery pack for medical device battery pack：

1） protection circuit board （PCM）：Mainly design against protection circuit board for rechargeable high capacity battery pack. Because of the chemical characteristics of lithium battery, in order to avoid burning, explosion etc. dangerous situation, must provide over charge, over discharge, short circuit, over current & over heat etc. protection function.

2）protection IC（Protection IC）：Main protection function chip in design scheme, carry on-line constantly monitor on over charge, over discharge, over current, short circuit etc. function of battery cell. Ensure batter cell work within the scope of safety, stability, high efficiency.

3） over current protection chip（PTC）：Mainly design against secondary protection function. PTC can recover thermal fuse with dual function: over current protection & auto recovery. PTC inside battery cell can prevent the cell occurs high temperature discharge and un-safe large current.

4）MOSFET chip：MOSFET chip, on on-off action in protection circuit

5）Packing of battery pack：plastic film

Application：Home energy storage, research device, electric bicycle, electric motorcycle, search light, backup power source, medical equipment, industrial power source, surveillance device, electric wheelchair, UPS, communication base station, detector etc.