Batteries 
  With low-temperature battery core, the battery can discharge at –30℃. 
  
 
  Specifications of BL2510 
  Specifications 
  Dimensions(H×W×D) mm 106.4*56.3*24.3(mm) 
  Weight about 145g 
  Nominal Capacity 2500mAh 
  Nominal Voltage 7.4V 
  Operating Temperature 0℃ to 45℃(charge) –30~60℃(discharge) 
  Storage Temperature –20℃ to 25℃ (for one year) –20℃ to 60℃ (for one month) –20℃ to 45℃ (for three months) 
  Battery Life Cycle 300 times 
  IP Rating IP67 
  
 
  There are many two way radio manufacturers, but we are one of the best choices for you.