Model:FT12-55   
12V55Ah FT12-55  is a front terminal type battery specially designed for Telecom use with 10+ years design life. The adoption of Centralized venting system makes sure the battery can be installed in any location, and guarantees high security and reliability. 
 Product  Specification 
 Voltage Per Unit 12 
 Capacity  55Ah@10hr-rate to 1.75V per cell @25℃ 
 Dimensions(Unit: mm)(L×W×H)  227×106×222 
 Weight  Approx. 18 Kg 
 Max. Discharge Current  550A (5 sec) 
 Internal Resistance   Approx. 6.0 mΩ 
 Operating Temperature Range  Discharge: -20℃~60℃ 
 Charge: 0℃~50℃ 
 Storage: -20℃~60℃ 
 Normal Operating    25℃±5℃ 
 Temperature   Range  
 Float charging Voltage  13.6 to 13.8 VDC/unit Average at 25℃ 
 Recommended Maximum  16.5 A 
 Charging Current Limit 
 Equalization and Cycle Service   14.6 to 14.8 VDC/unit Average at 25℃ 
 Self Discharge  YIKE batteries can be  stored for more than 6 months 
 at 25℃. Self-discharge ratio less than 3% per month 
 at 25℃. Please charge batteries before using.  
 Terminal   Terminal  M6
Main Application Mainly used in the area of communication Low Internal Resistance Lower Self Discharge Longest Available Standby Life High Energy Density Excellent Performance/Price Ratio and Very Low Service Costs