SOURCAVENS MP0514A 12V Digital Car Battery Tester

Digital: The SOURCAVENS MP0514A is a 12V car battery tester with an LCD voltage readout and LED status indicators. Its stated 4 to 20V DC range and separate battery and alternator checks suit basic voltage checks, while the supplied details do not describe a load or cranking test.

At a glance

The listing describes checking battery status with the vehicle off and alternator status after starting it.
The LCD shows voltage while LED indicators provide a separate status cue.
Reverse-connection and over-voltage protection are stated features, not independently verified protections.

Price

$20.39Save 15%

Reference price: ~~$23.99~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

LCD voltage readout is paired with eight coloured indicators for at-a-glance status feedback.
The stated 50cm extension cable and alligator clips allow connection at different positions around a battery.
At a stated 150 grams, it is described as compact for storage in a car or toolbox.

Cons

The supplied specifications describe voltage testing, not a load or cranking test, so it is not presented as a substitute for those diagnostic functions.

Technical specifications

14 specifications

Identity
Brand	SOURCAVENS

Display and indicators
Screen technology listed	LCD
Display	3-digit digital LCD display
Voltage reading accuracy	0.01 volts
LED indicators	8 colored LED indicators

Electrical and connections
Testing voltage range	4 to 20V DC
Intended battery voltage	12V
Extension cable length	50cm
Alligator clips	30A

Design
Weight	150 grams
Colour	Black
Style	Digital
Surface treatment	black rubber paint
Part number	S140

What to know before buying

Listing details to confirm

The listing says this is for 12V car batteries while its voltage testing range is 4 to 20V DC and also mentions other devices. Treat the broader device compatibility as unconfirmed, and note that voltage readings and LED status are not described as load or cranking tests.

What’s in the box

Included

Battery Tester

Who is it for?

A good fit for

Drivers wanting a portable voltage check of a 12V car battery and charging system.
DIY users who want both a numeric voltage display and LED status indications.
Mechanics seeking a compact tester for basic battery and alternator checks.

Less suited to

Buyers who need battery load, cranking or capacity testing based on the supplied specifications.
Users seeking a confirmed diagnostic tool for battery systems outside the stated 12V car-battery use.

SOURCAVENS MP0514A 12V Digital Car Battery Tester · photo 2 — Additional product photo 2

Frequently asked questions

What does the MP0514A test?

The listing describes reading battery voltage with the vehicle off and checking alternator status after starting the vehicle. It does not specify load or cranking tests.

What voltage range is stated?

The stated testing range is 4 to 20V DC, with 12V car batteries named as the intended application.

What is included?

The manufacturer contents list specifies a battery tester. The listing also describes a 50cm extension cable and 30A alligator clips as product features.

Does the tester have protection features?

The listing claims reverse-connection and over-voltage protection. Those are manufacturer claims and are not independently verified here.