8.4V 2 string 7.4V Lithium Battery Stack Protection Board overcharge Over discharge protection Maximum 5A working current 7A current-limiting

 2 series 18650 battery 8.4V 7.4V 
 Lithium battery protection board 
 Comes with: over charge, over discharge, over current, short circuit protection 
 18650 Lithium-ion battery stack essential!

summary: 
 Main IC using original "precision" imported components. With over charge, over discharge, over current, short circuit protection function, for a variety of different shapes of 3.7V capacity lithium batteries. Compact size, suitable for many requirements of high integration, low cost occasions, can meet the performance requirements of many aspects, to ensure the absolute safety of the battery group. 
 The properties of the lithium battery protection board: 
 Model: HX-2S-02 
 Over voltage range: 4.25-4.35v±0.05v
 Size: 36*6*1.0mm 
 Over discharge voltage range: 2.3-3.0v±0.05v
 Maximum operating current: 3A 
 Operating temperature: -40°C~+50°C 
 Maximum instantaneous current: 5A 
 Storage condition:-40°C~80°C
 Quiescent current: less than 3uA 
 Effective life: more than 50000 hours 
 Resistance: less than 45m ohm
 Short circuit protection: Can protect, need to charge recovery 
 The protection board size and device description; 
 The protection board size is38*8*2.5mm
 Welding point description: 
 B+ Connect positive electrode; 
 B - connect battery cathode; 
 MB connect the battery 1 and battery 2 before the connection point; 
 P+ charge / discharge end positive electrode (charge end / discharge end sharing); 
 P- charge / discharge end negative (charge / discharge end).