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Extech BT100 Battery Capacity Tester

Extech BT100
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  • BT100 Battery Capacity Tester
  • On-line testing without shutting down battery
  • Built-in datalogger stores up to 999 tests
  • Simultaneously measures battery resistance and voltage
  • Windows95/98/NT/2000/ME/XP compatible software for downloading readings to a PC
  • Includes PC interface cable and software, test leads and 6 AAA batteries
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Sale: $769.00
  + Free shipping over $99

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Product Information

Extech BT100 Battery Capacity Tester.

Checks battery condition in seconds while the battery is in service
The Battery Tester is designed for measuring the internal resistance and output voltage of batteries including lead storage cell, nickel-cadmium battery, lithium-ion battery and nickelmetal hydride battery.

Battery Capacity Tester
The Extech BT100 Battery Capacity Tester can be used to test the condition of batteries quickly and easily. As an AC milliohmmeter, the tester measures DC voltage and AC resistance while the battery is in use, helping to save time on repetitive testing trials or large quantities of batteries.

Other Features
The BT100 can store up to 999 test readings and the device can be connected to a PC using the included Windows-compatible software and data cable to analyze and document test results. 

What's In The Box

  • Windows Software w/Cable
  • Kelvin Alligator Clips
  • Kelvin Test Leads
  • AAA Batteries


Resistance Ranges 40mΩ, 400mΩ, 4Ω, 40Ω
Voltage Ranges 4V, 40V
Maximum Input Voltage 50VDC
Power 6 AAA batteries
Battery Life 7 hours
Dimensions 9.75" x 4" x 1.75" (250 x 100 x 45 mm)
Weight 17.5oz (500g)

Extech BT100 Product Specifications Summary:
(for full specs please see the full specs tab or the data sheet)

Battery Testing/Battery Capacity Tester Template

Min Voltage1 mV (0.001 V)
Max Voltage40 V
Min Resistance What's This?10 u Ohms (0.01 m Ohms)
Max Resistance (ohm) What's This?40 Ohms
AccuracyVoltage: ± 0.1% Rdg + 6D; Resistance: ± 1% Rdg + 8D

Test Equipment General Attributes

Unique FeaturesOn-line Testing without Shutting Down Battery, Simultaneously Measures Battery Resistance and Voltage
Warranty1 YEARS
Warranty Details1 Year Warranty
Additional Info/CommentsChecks Battery Condition in Seconds while the Battery is in Service
Calibration IncludedFactory Calibration
Power Supply VoltageBattery Powered 
Safety ApprovalCE 
Data Logging What's This?Yes
Interfaces I/O Other
Product Weight17.5 OUNCES (1.09 LBS)
Battery TypeAAA
Product Height1.75 IN
Product Length9.75 IN
Product Width4 IN
Country of OriginTaiwan 


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