Instant Status at a Glance
Color-coded LED indicator lights show battery status at a glance, so you don't need to interpret numbers to know if your battery is healthy.
- Free shipping
- 14-day easy returns
- Secure checkout
- Quality guaranteed
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Why customers love it
Know Your Battery's Health in Seconds
This compact 12V battery tester gives you instant, accurate voltage readings and clear status alerts, so you can check your car's battery and charging system anytime.
- Tests 12V battery voltage and charging system output in real time
- Clear LED display shows exact voltage readings
- Color-coded LED indicator lights show battery status at a glance
- Built-in buzzer alarm warns of reverse polarity connection or low battery
- Overvoltage protection safeguards your battery and the tester
- Lightweight and portable—fits easily in a glove box or toolbox
Why You'll Love This Tester
Built-In Safety Alerts
A built-in buzzer alarm warns of reverse polarity connection or low battery, helping you avoid mistakes and protect your equipment.
Protects Your Battery
Overvoltage protection safeguards your battery and the tester, giving you peace of mind during every check.
Portable and Convenient
Lightweight and portable, it fits easily in a glove box or toolbox, so you can test your battery wherever you are.
Setup
How It Works
No electrician, no wiring, no fuss.
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Connect the Clips
Attach the crocodile clips to your 12V battery terminals, ensuring correct polarity.
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Read the Display
The clear LED display shows exact voltage readings in real time, while color-coded indicator lights show battery status at a glance.
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Diagnose the System
Use the reading to check battery health and charging system output, helping you spot issues before they become problems.
Specs
The details that matter
Built to last outdoors, season after season.
- Product Type
- 12V Car Battery Tester
- Model Number
- BT-172
- Display
- LED
- Alarm
- Reverse Connection Buzzer
- Indicator
- Color LED
Our worry-free shopping promise
If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.
Frequently asked questions
Everything you might want to know before you order.
What does this battery tester measure?
This tester measures 12V battery voltage and charging system output in real time, giving you a clear picture of your battery's condition.
How do I read the results?
The clear LED display shows exact voltage readings, while color-coded LED indicator lights show battery status at a glance, so you can quickly tell if the battery is fully charged, low, or needs attention.
What happens if I connect the clips backwards?
A built-in buzzer alarm warns of reverse polarity connection, alerting you immediately so you can correct the connection and avoid damage.
Is this tester safe for my battery?
Yes, overvoltage protection safeguards your battery and the tester, and the built-in buzzer also alerts you to low battery conditions.
Is it easy to carry around?
Yes, it is lightweight and portable, fitting easily in a glove box or toolbox for convenient use wherever you need it.
What is the body made of?
The tester features a durable ABS body with a rubberized grip and crocodile clips for secure attachment.
Shipping & returns
Shipping
- Delivers to United States (based on your selected country/region).
- Estimated delivery: 3–15 business days after dispatch.
- Shipping cost: Free.
Returns
You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.
D
Good tester precision meter
A
It works perfectly
J
11 days to Ukraine. I have already checked both the battery and the generator, everything seems correct. It's necessary to have such an inexpensive device in the car. Thank you to the seller.
D
Fast shipping, useful battery status testing tool.
A
It looks very good ☺️
L
Everything is fine, but I need to test it better for a longer time. However, it has proven to be a practical tool for knowing if the battery is charged.
W
👍👍👍
L
Product consistent with the description. I recommend.
T
It's cost-effective.
It works well.
But the packaging is a bit off.
L
It works very well!
C
price 135 UAH, delivery to Lviv in 12 days, haven't used it yet, for this price the quality is okay
M
I was received this order today ... Thank you verry much !
A
Excellent
G
Thank you
R
It works correctly, checks the alternator and indicates the battery status, and it has a beep.
P
I liked the product! I recommend the seller and their product. They personally helped me identify the issue with the charger.
H
works well
C
Impeccable 👍
K
Well received.
A
It looks good, in tests.....
