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Flexivo

BT189 Digital Battery Tester with LCD Voltage Display

BT189 Digital Battery Tester with LCD Voltage Display

Regular price $8.99 USD
Regular price $16.32 USD Sale price $8.99 USD
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Ships in 5-7 days

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Check Household Battery Voltage

Read the voltage of compatible household batteries with the BT189 digital battery tester. Its LCD display and stepped contact layout provide a compact way to check individual batteries before deciding what to do with them.

Includes one black BT189 battery tester. Batteries shown in the photos are not included.

Product Details

  • Digital LCD voltage display.
  • Contacts marked for C, AA, AAA, D, N, and 9V batteries.
  • A dedicated button-cell contact area, with a supplier-listed 1.2–4.8V marking.
  • Compact handheld design for household use.

Before Testing

Confirm that your battery's size, chemistry, and voltage are supported by the manufacturer's instructions. Match the positive and negative terminals to the tester markings and test one battery at a time.

A voltage reading alone does not establish remaining capacity or expected runtime. This tester does not charge batteries and is not a full battery-health analyzer.

Do not test leaking, swollen, damaged, or hot batteries. Keep batteries, especially button cells, out of children's reach and follow the battery manufacturer's handling guidance.

View full details
  • 5 stars: 470 (94%)
  • 4 stars: 28 (6%)
  • 3 stars: 2 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Cortney Sauer

Excellent product and it arrived on time.

C
Caitlyn Lesch

Good thing that clears up any doubts about whether the batteries are still usable. Great!

G
Gilberto Brekke

Good product, now I can test my batteries 🙂

J
Judith Miller

If you often use batteries such as rechargeable ones and others, this is something you should have.

W
Wilfred Bernier

Excellent quality and works very well and is useful, although some batteries don't show any markings; I imagine they have no charge at all, but it's still highly recommended and the delivery was excellent.

T
Tomika Langworth

Good seller, quick delivery to australia. item as described. works well so far.

T
Tommy Emard

The product arrived exactly as advertised, very good.

G
Golda Wolf

I had a lot of leftover batteries at home, and when I checked with this product, I found that there were also new batteries mixed in. I recommend it.

L
Lelia Weissnat

Sturdy, of good quality, and handy! 😄

L
Lance Stanton

I RECOMMEND. Delivery to Ukraine takes 17 days.

L
Linn Durgan

Great product of good quality and amazing price, 12 days to arrive in São Paulo, Brazil.

S
Sydney Treutel

Excellent, I tested several batteries, it worked perfectly.

S
Stefan Mills

Very good product. Very functional and useful. Good shipping



Highly recommended

R
Rolf Kovacek

Very good, it works and is very useful.

D
Donnie Mosciski

Really useful for a bike mechanic.

T
Tracy McCullough

I am using it well. It's great.

B
Bruce Effertz

Very convenient and practical!

L
Lawanda Goodwin

Wow, it works! I checked the batteries I wasn't sure about, great thing.

D
Dominga Wilderman

It works

W
Wallace Thiel

The battery tester is excellent, everything matches the description, I recommend the seller 👍

L
Lupita Bins

As expected, would gladly buy again, recommended, repeat purchase.

F
Fredericka Ward

Received it, the packaging was slightly dented, but the tester is intact and in working condition. Overall, I'm satisfied - it's lightweight, "compact", detects voltage and charge without any unnecessary features, easy to understand - what more could you want? You take it and use it, it breaks down - you buy a new one, the price is reasonable. I recommend both the seller and the tester.

V
Van Emmerich

works great... delivery on time... I'm satisfied