First, an overview 
 1, the test function 
 HDGC3901 smart battery internal resistance tester injection through the exchange of accurate measurement of battery terminal voltage and internal resistance, to determine the battery capacity and the technical state of the pros and cons. Into a set of measurements, the battery can also be a single measurement. 
 2, the management functions 
 Powerful computer analysis system that can query on the battery were split into groups and manufacturers to manage. 

 Second, the design features 
 1, can be customized according to user needs to update instrument procedures. 
 2, storage capacity, be able to table stored in more than 1500 battery test parameters, and are equipped with computer management software, data storage, compared with the technical state of a battery of different periods, the battery deterioration trend analysis, the predictability of the battery promptly repair or replace, to avoid failure is a power outage. 
 , Portable, easy to operate: The instrument is small size, light weight, easy to operate, a look that will. Be able to quickly and easily complete the field test. 

 Third, the typical application 
 A new battery with group acceptance testing; 
 2, the old battery back in with the group before internal resistance matching test; 
 3, the daily test: track the battery internal resistance changes, and keep abreast of the deterioration of the battery. 
 Before and after 4, check discharge with the discharge, find the discharge resistance change values ??before and after to determine the behind the battery. 
 Test the connection resistance, to determine whether a gong solid screw matter, in connection resistance in the prevention of discharge too large to discharge the accident. 

 Fourth, technical indicators 
 Product Model HDGC3901 
 Internal resistance of the measuring range: 0.00 mΩ-100.00mΩ voltage: 0.00V-16.00V withstand voltage: 0.00V-220V 
 The minimum measurement resolution of the internal resistance: 0.01mΩ voltage: 1mV 
 Measurement accuracy of the internal resistance: ± 1.0% rdg ± 6dgt voltage: ± 0.2% rdg ± 6dgt The 
 High-performance lithium battery for power supply 
 Continuous working of the power consumption of less than 8 hours 
 The storage capacity can store up to 1500 battery parameters 
 Display 192 x 64 dot matrix graphic LCD 
 Size 230 × 158 × 60MM 
 Weight 0.6KG 
 Communication interfaces USB interface