BT173 BT189 BT167 universal battery voltage tester with LCD display 9V AA AAA and push-button batteries

Battery tester BT173 BT189 BT167 is a universal device for quickly and accurately checking the charge level of various battery types. The compact-sized tester operates without an additional power source, as it draws energy directly from the battery being tested, making it economical and environmentally friendly. The digital display shows accurate results, and two connectors allow you to check both small AA, AAA and larger 9V or lithium batteries at home, in the office or in the workshop.

Battery tester – key features

• Compact design — a compact and lightweight device fits into a pocket or drawer, comfortable to hold in your hand without feeling extra weight.
• Double screen — numerical value and battery level bar are displayed simultaneously, so you can see the charge status at a glance.
• No power supply needed The tester draws power from the battery being tested, so it doesn't require separate batteries or charging.
• Two test connectors — The bottom connector is for 9V batteries, matching positive and negative poles for quick testing.
• Wide battery compatibility — Suitable for 1, 2, 5, 7 type, N type, 9V, 12V, 23V, button cell and lithium 18650/21700/26650/14500/10440/16340 batteries.
• Clear display — The high-resolution digital LCD screen ensures easily readable measurement data in all conditions.

Technical specifications

• BT173 – Name: Digital battery tester
• BT173 – Material: ABS
• BT173 – Model: BT173
• BT173 – Display: digital
• BT173 – Power supply: not required
• BT173 – Dimensions: 105 × 77 × 14.2 mm
• BT173 – Tested batteries: 1/2/5/7 type batteries, N type/9V, 12V, 23V batteries/1.55V button cell batteries, 18650/21700/26650/14500/10440/16340 lithium batteries
• BT173 – Package contents: digital battery tester ×1, instruction manual
• BT169 – Name: Battery level tester
• BT169 – Measurement range: 1.2–4.8 / 9V
• BT169 – Display: digital
• BT169 – Power supply: not required
• BT169 – Material: ABS
• BT169 – Tested batteries: 1, 2, 5, 7 type batteries, 9V battery, button cell battery, 21700, 18650, 16340 lithium batteries
• BT169 – Package contents: battery tester ×1
• BT189 – Name: Battery tester
• BT189 – Material: ABS
• BT189 – Weight: about 31.3 g
• BT189 – Model: BT189
• BT189 – Dimensions: 92.2 × 61.4 × 13.5 mm
• BT189 – Tested batteries: N type, No.1, No.2, No.5, 14500, No.7, 10440, 16340, button battery, 9V battery
• BT189 – Package contents: battery tester ×1

Who is it suitable for and how to use it?

This battery tester is perfect for homeowners, electronics enthusiasts, craftsmen and anyone who wants to save time and money by quickly checking if a battery is still usable. Simply insert the battery into the appropriate connector according to polarity - the result is displayed on the screen in seconds. The device is useful for remote controls, toys, flashlights or household appliances where batteries with different charge levels often accumulate.

Buyer questions

Q: What types of batteries can be tested with this tester?
The tester is suitable for AA, AAA, N type, 9V, 12V, 23V, button and lithium 18650, 21700, 26650, 14500, 10440 and 16340 batteries, depending on the selected model.

Q: Does the device require a separate power source to operate?
No, the tester gets its energy directly from the battery being tested, so no additional power element or charging is required - this saves resources and is convenient.

Q: How is the measurement result displayed?
The BT173 model has a double display with a numerical value and a battery level bar, while the BT189 and BT169 models have a clear digital LCD screen.

This battery tester is a convenient and accurate solution for quickly assessing the condition of any battery at home or work. Recommended for anyone who wants to save and only use working batteries.

Sources: Electric battery (Wikipedia) | TopSmart store