Extech BT100 Battery Capacity Tester


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 nickel-metal 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.

Authorised Australian Distributor

CE   1 Year

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SKU: EXTECH BT100 Category: Tag:

Extech Model BT100. The Battery Tester is designed for measuring the internal resistance and output voltage of batteries including lead storage cells, nickel-cadmium batteries, lithium-ion batteries, and nickel-metal hydride batteries. The Extech BT100 is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit the Extech Instruments website (www.extech.com) to check for the latest version of this User Guide.

The comparator function compares the measured values with pre-set High and Low limit values for internal resistance and voltage level, and determines the range that the measurement should fall into. Then, according to the following conditions, switches ON the corresponding LED, and sounds an audible alert as shown in the table below for the WARNING and FAIL conditions.

Extech BT100 General Specifications

Resistance Ranges 40mΩ, 400mΩ, 4Ω, 40Ω
Voltage Ranges 4V, 40V
Maximum Input Voltage 50VDC
Power 6 AAA batteries
Battery Life
7 hours
Voltage 1 mV (0.001 V)
Max Voltage 40 V
Minimum Resistance 10 u Ohms (0.01 m Ohms)
Maximum Resistance 40 Ohms
Accuracy Voltage: ± 0.1% Rdg + 6D; Resistance: ± 1% Rdg + 8D
Unique Features
On-line Testing without Shutting Down Battery, Simultaneously Measures Battery Resistance and Voltage
Warranty 1 Year
Additional Info/Comments Checks Battery Condition in Seconds while the Battery is in Service
Safety Approval
Product Weight 500g
Dimensions 250 x 100 x 45 mm
Weight 3 kg


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