Sonel BT-120


The Sonel BT-120 battery tester is a measuring tool that allows you to accurately test a wide range of battery parameters to ensure the optimal performance of batteries.   The BT-120 battery tester is a vital support for keeping batteries in excellent condition and has been designed for both professionals and home users.

Keep your batteries in good condition

The Sonel BT-120 tester is a reliable tool that provides accurate measurements and precise information about the condition of the battery.

  • Monitor the performance of batteries and avoid unpleasant surprises related to their improper operation
  • Make informed decisions about the continued use of batteries or their replacement, based on internal impedance measurements
  • Ensure reliable power supply in a wide range of applications, from vehicles to emergency power systems
  • Identify potential problems, such as improper charging or cell damage, by measuring the ripple voltage.

With the Sonel BT-120 tester, you can have confidence that your batteries are operating at full capacity and can deliver power when you need it.

AC/DC current measurements

The battery tester can accurately measure AC and DC current up to 400A.  This is crucial to assess the batterys ability to deliver power and identify any problems with current flow.

AC/DC voltage measurements

The Sonel BT-120 allows you to measure both AC and DC voltage up to 500 volts.  This is important for monitoring voltage stability and matching battery voltage to the requirements of powered devices.

Internal impedance measurement

Internal impedance is an indicator of the battery’s condition. The tester allows you to measure this value, which allows you to assess the condition of the battery and make informed decisions about its further use.

Ripple voltage measurement

Measuring the ripple voltage down to 5 V identifies potential problems, such as cell damage or improper charging. This is crucial to maintaining battery performance.

Industry versatility

The Sonel BT-120 is used in a wide range of industries, from automotive and electrical to renewable energy and telecommunications. It’s a tool for professionals concerned about power reliability and efficiency.

For more information visit the Sonel product page

Measurement functionsDisplay rangeResolutionAccuracy
Internal resistance0…300 ?from 1 ??from ±(0.5% m.v. + 10 digits)
DC voltage0…500 Vfrom 0.001 V±(0.5% m.v. + 5 digits)
AC voltage0…500 V0.1 V±(0.75% m.v. + 5 digits)
Ripple voltage0…5 V0.001 V±(2.5% m.v. + 10 digits)
DC current0…400 Afrom 0.001 A±(0.5% m.v. + 5 digits)
AC current0…400 Afrom 0.001 A±(0.75% m.v. + 10 digits)
Temperature-10…100°C0.1°C±(1% m.v. + 2 digits)

“m.v.” – measured value

With the Sonel BT-120 tester, you can have confidence that your batteries are operating at full capacity and can deliver power when you need it.


Download: Sonel BT-120 Datasheet [HERE]

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