12V Car Battery and Alternator Tester, 6 LED Battery Checker for Charge Level and Charging System

A simple 12V battery and alternator tester with 6 LED lights. It shows how charged the battery is, checks whether the alternator is charging, and shows when a battery charger has finished.

Compatibility

• For 12V batteries only, per the supplier. Not for 24V systems.
• Per the supplier, it works with the 12V battery in gas cars and in hybrid cars.

Key Features

• Battery check: the LEDs show the battery's charge level.
• Alternator check: shows whether the charging circuit is working while the engine runs.
• Charger check: a green light shows when charging is complete.
• Pre-charge and overload check: also checks before charging and shows overload, per the supplier.

Specifications

• Battery voltage: 12V only
• Indicators: 6 LEDs (2 red, 3 green, 1 yellow)
• Max voltage and current: 13.9V, 15A (supplier rating)
• Wire: copper, 0.06 mm², 9.8 in (25 cm) long

What's in the Box

• 1 x 12V battery tester

How to Use

1. Battery check: connect the tester and read the battery's charge level on the LEDs.
2. Alternator check: start the engine and bring it to about 2,000 rpm. If a green light is lit, the charging circuit is OK.
3. Charger check: while the battery is on a charger, a green light means charging is complete.

Good to Know

• The supplier does not say how the tester connects to the battery or the car, so check the photos before ordering.
• Results show as colored LED lights, not as numbers on a screen.