Extech BT100 Battery Capacity Tester

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  • Measures battery resistance and voltage simultaneously
  • On-line testing while battery is in service
  • Built-in datalogger stores up to 999 tests

rrp £640.98

now £563.00 (Ex. VAT) £675.60 (Inc. VAT)

rrp £640.98

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"Capable of simultaneous resistance and voltage measurement of in-service batteries"

  • Description

    Extech BT100 Battery Capacity / Condition Tester

    Check battery condition in seconds, even if the battery is in service, with the Extech BT100 Battery Capactiy Tester. Able to assess a range of battery types including nickel-cadmium batteries, lithium-ion, lead storage cell and nickel metal hydride batteries, the BT100 has a 1kHz test current and dual display for ease of use.

    Measuring the internal resistance and output voltage of a battery simultaneously, the Extech BT100 also contains a built-in datalogger capable of storing up to 999 tests and comes packaged with software for downloading readings direct to a PC.

    • Simultaneously measure battery resistance and voltage
    • Capable of on-line testing without shutting down battery
    • Built-in datalogger storing up to 999 tests
    • PC software for downloading measurements to a PC
  • Specification


    • Range: 40mΩ, 400mΩ, 4Ω, 40Ω
    • Resolution: 10μΩ, 100μΩ, 1mΩ, 10mΩ
    • Basic accuracy: ±(1% reading ± 8d)


    • Range: 4V, 40V
    • Resolution: 1mV, 10mV
    • Basic accuracy: ±(0.1% reading ±6d)
    • Max 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)
  • Supplied Accessories

    • Extech BT100 Battery Capacity Tester
    • Software and connectivity cable
    • 2 x Kelvin alligator clips
    • 2 x Kelvin test leads
    • 6 x AAA batteries
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    • FREE Delivery (on select products only): typically 3-5 working days*
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    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only.

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