It tests the alternator also correct??

WITH ENGINE OFF READS BATTERY ACCURATELY. WITH ENGINE ON IT SHOWS BOTH BATTERY AND ALTERNATOR CONDITION.

Does it come with batteries included?

It powers up off the battery being tested. No batteries needed.

Why didnt mine come with directions

I don't know why. But just connect to battery, read the voltage, go to the charts which tell % charge as a function of voltage-then you know status of the battery. I purchased a second one, put on long wires so I can see if my alternator is charging as I go down the road. Unbelievably accurate for the cheap price. Strong recommendation Jay

With my engine running I get voltage indicated and lights on the battery side of the unit. No lights on the alternator side. Is the unit defective?

I'm not a mechanic, but all I do is first I check the voltage of the battery without having started the vehicle. Next I start the engine and check the battery voltage while the engine is idling. While the engine is idling I usually show about 13.8 volts on the tester.

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12V Battery Tester-Classic

Product ID: 28399712

Details

Brand
MOTOPOWER
Color
Black
Min. Operating Voltage
4 Volts (DC)
Power Source
Battery
Style
Battery Tester

⚡Tests alternator & battery status

🔋Accurate 0.01V voltage reading

🛡️Reverse & over-voltage protection

€ 44.76

Duties & taxes included

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Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🔧 Power up your diagnostics game—never get caught off-guard again!

BUILT FOR SAFETY - Advanced reverse polarity and over-voltage safeguards protect both you and your vehicle.
ERGONOMIC PORTABLE - Sleek black rubber paint finish ensures a secure grip; lightweight and compact for on-the-go pros.
PRECISION YOU CAN TRUST - 4-digit LCD plus 8 LED indicators deliver crystal-clear, ultra-accurate voltage insights.
UNIVERSAL COMPATIBILITY - Works seamlessly with all 12V batteries and devices, thanks to a 50cm cable & 30A clips.
PLUG AND TEST SIMPLICITY - Instant battery & alternator diagnostics without engine start—no tech skills needed.

The MOTOPOWER MP0514A is a professional-grade 12V digital car battery tester and charging system analyzer featuring a high-precision 0.01V LCD display, 8 LED status indicators, and robust safety protections. Designed for effortless plug-and-test use, it offers wide compatibility with 12V batteries and includes a durable, ergonomic black rubber-coated body for reliable, portable performance.

Specifications

ASIN	B01DYE581Y
Best Sellers Rank	#6,832 in Automotive ( See Top 100 in Automotive ) #10 in Battery Testers
Brand Name	MOTOPOWER
Color	Black
Compatible Devices	Vehicles with 12V batteries
Customer Reviews	4.5 4.5 out of 5 stars (5,346)
Included Components	Battery Tester x 1; Instruction Manual x 1
Manufacturer	MOTOPOWER
Measurement Type	Voltmeter
Minimum Operating Voltage	4 Volts (DC)
Model	MP0514A
Part Number	MP0514A
Power Source	Battery Powered
Specification Met	CE
Style Name	Battery Tester
UPC	607983879397 711081272124
Unit Count	1.0 Count
Warranty Description	1 year manufacturer

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 44.76

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Finland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The delivery time was excellent, and the packaging was secure.

2 months ago

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Perfect platform for hard-to-find items. Delivery was prompt.

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