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ANENG BT172 12V battery tester with LCD screen and LED indicator lights

ANENG BT172 12V Battery Tester with LCD & LED

SKU CH-QQN9-XQYN3

Tests 12 V batteries and alternator output with 0.01 V accuracy, reverse-polarity protection and LCD plus LED status indicators

  • FeaturesBT172 Battery Tester, Battery Powered, false
  • Weight0.09 kilograms
  • Sports Team1 Piece
  • TypeVoltmeter
  • Tests 12V batteries across cars, bikes, trucks and boats
  • Alternator charging analysis prevents over-charge damage
  • Three test modes with live voltage on LCD
  • Reverse-polarity protection with LO/HI out-of-range alerts
  • Pocket-sized at 0.09 kg for on-the-go diagnostics

12V Battery Tester BT172

The ANENG BT172 is a compact digital tester for 12 volt lead-acid batteries found in cars, motorcycles, trucks, boats and garden equipment. It connects with alligator clips and shows real-time voltage on a backlit LCD while LEDs indicate charge state or alternator output. Reverse-polarity protection and over-range warnings (LO at 4V, HI at 30V) prevent damage during hook-up.

DIY owners and mobile technicians

Suits anyone who needs a quick go/no-go check on a 12V system without a full workshop analyser. It is not suited for buyers who require testing of 6 volt or other voltage platforms, or who need a printer interface or data-logging capability.

0.01V resolution voltage measurement

The single specification that decides fit is the approximate 0.01 volt display resolution on the 4–30V DC range; if your diagnostic procedure demands finer resolution or a wider voltage span, this tester will not meet the requirement.

Highlights

  • Tests 12V batteries across cars, bikes, trucks and boats
  • Alternator charging analysis prevents over-charge damage
  • Three test modes with live voltage on LCD
  • Reverse-polarity protection with LO/HI out-of-range alerts
  • Pocket-sized at 0.09 kg for on-the-go diagnostics

Specifications

BrandANENG
FeaturesBT172 Battery Tester, Battery Powered, false
Weight0.09 kilograms
Sports Team1 Piece
TypeVoltmeter

Questions about this item

How do I connect the ANENG BT172 clamps to avoid a reverse-connection mistake?

Attach the red alligator clip to the positive terminal and the black clip to the negative terminal; the unit has reverse-connection protection if you swap them.

Does the BT172 need its own battery replaced, and how often?

The tester is not battery-powered, so there is no internal cell to change.

What voltage limit triggers the over-voltage warning during a long charging check?

The display shows 'HI' at 30 V DC, which is the upper end of the 4-30 V test range.

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