Battery Tester

Supports 1.5V, 3V, and 3.7V batteries for various devices like remotes, toys, flashlights, and electronics;Simple Operation: Aligns with battery terminals, then slide the voltage button to the corresponding setting;3 indicator lights provide quick feedback on battery power levels;Both ends feature magnets for easy attachment to battery terminals and space-saving storage;The shell is made of high-quality ABS material, ensuring durability;Compact design fits in pockets or backpacks and can be attached to a keychain

  • Model: BT-U3
  • Bar Code: 6950291518620
The JJC BT-U3 Battery Tester is compatible with 1.5V, 3V, and 3.7V batteries. Whether it's for household remote controls, children's toys, flashlights, or portable electronic devices, the tester makes it easy to monitor your battery power levels at any time. 
Simply align the red positive terminal and black negative terminal with the corresponding battery poles, then slide the voltage button to the corresponding setting. The tester features 3 battery level indicator lights, providing quick and straightforward feedback on the battery's status. Both ends adopt a magnetic design, enabling the tester to attach easily to battery terminals. This design also saves space and makes storage more convenient. The shell is made of high-quality ABS material, ensuring durability. Its compact size makes it easy to carry, fitting effortlessly into pockets or backpacks, and it can also be attached to a keychain for added convenience.
All our products have undergone multiple inspections to ensure their quality. It is worth your trust!
 

Please Note: To ensure proper use of the tester, do not stack two or more batteries for testing. Also, make sure the voltage of the test battery does not exceed 5.5V.


Product Highlights
Supports 1.5V, 3V, and 3.7V batteries for various devices like remotes, toys, flashlights, and electronics
Simple Operation: Aligns with battery terminals, then slide the voltage button to the corresponding setting
3 indicator lights provide quick feedback on battery power levels
Both ends feature magnets for easy attachment to battery terminals and space-saving storage
The shell is made of high-quality ABS material, ensuring durability

Compact design fits in pockets or backpacks and can be attached to a keychain


1.5V

LR44, LR41, LR43, LR44H, A76,

AA , AAA, C, D

No Lights On：＜0.84V

1 Light On：0.84-1.13V

2 Lights On：1.13-1.33V

3 Lights On：＞1.33V

3V

CR2032, CR2025, CR1632, CR2450, CR1225, CR1616

CR123A, CR2, CR123, CR1/3N

No Lights On：＜2.55V

1 Light On：2.55-2.7V

2 Lights On：2.7-2.85V

3 Lights On：＞2.85V

3.7V

18650, 14500, 16340, 10440, 20700, 26650, RCR123A

No Lights On：＜3.30V

1 Light On：3.30-3.7V

2 Lights On：3.70-3.95V

3 Lights On：＞3.95V