This light-weight, easy to carry Universal Battery Tester is a simple yet effective battery tester checker. It works with standard and rechargeable household batteries including a huge range of Lithium-based (LiFePo4, Li-Ion, etc) batteries. You can test voltage, capacity, and internal resistance. Internal resistance is usually tied to the current charge level but generally increases with the age of the battery, providing a good indication of battery health, most notably in Lithium-based rechargeable batteries. This Universal Battery Tester also works with alkaline and various other non-rechargeable batteries.

12 Month Warranty

Compatible Batteries:

• 1.2V Ni-MH/Ni-Cd
• 1.5V Alkaline Cylindrical and 9V Block
• 1.4V and 1.5V Button Cells
• 3.0V Lithium Button Cells
• 3.0V and 6.0V Lithium Single-Use
• 3.2V LiFePo4 Rechargeable
• 3.7V Li-Ion Rechargeable

Full list of compatible batteries:
General Purpose Cells

• Ni-Mh/Ni-Cd 1.2V: AAAA, AAA, AA, A, C, SC, D
• Alkaline
  • 1.5V: AAAA, AAA, AA, A, C, SC, D
  • 9.0V: 6LR61 (Block)
  • 12.0V: 23A, 27A

Button/Coin Cells:

• Zinc-Air 1.4V: A10, A13, A312, A675
• Alkaline/Silver Oxide 1.5V: LR621(AG1), LR726(AG2), LR41(AG3), LR626(AG4), LR754(AG5), LR921(AG6), LR927(AG7), LR1120(AG8), LR936(AG9), LR1130(AG10), LR721(AG11), LR43(AG12), LR44(AG13)
• Lithium 3.0V: CR2016, CR2025, CR2032, CR2320, CR2430, CR2450, CR1025, CR1216, CR1220, CR1616, CR1620

Lithium High Capacity Cells:

• Single Use Lithium
  • 3.0V: CR123A, CR2, CR-V3
  • 6.0V: 2CR5, CR-P2
• LiFePo4 Rechargeable 3.2V: 26650, 26500, 22650, 18650, 18500, 17670, 17500, 17335
• Li-Ion Rechargeable 3.7V: 26650, 26500, 22650, 18650, 18500, 17670, 17500, 17335