• The EC-741 battery tester is designed to measure the remaining power in Primary or Rechargeable AA, AAA, 9V, CR-V3, & 2CR5 batteries. To obtain the most precise reading, it is necessary to set the selector switch to Primary or Rechargeable to match the type of battery you are about to test before proceeding.
• Locate the correct slot on the EC-741 for the type of battery you would like to test.
• Match the + and - symbols embossed in the battery slot to insert your battery into the tester with correct direction of polarity.

Features of the EC-741 Battery Tester:

• Instant and Precise
  Enables the user to check remaining power inside a battery at a glance with 5-LED fuel gauge.
  
• Smart Circuitry + Universal Design
  Compatible with both RECHARGEABLE and PRIMARY AA, AAA, 9V, CR-V3 and 2CR5 NiMH , NiCD, and Lithium batteries.
• Microprocessor Controlled
  Capable of detecting battery voltage automatically. Use on Rechargeable Batteries as well as Standard alkaline or other battery types.
• Compact and Light
  Easy and Convenient to carry in a camera bag.
  Quickly determine if your batteries need Charging or Replacing
• Self-Operation
  No extra power (such as batteries or AC adapter) required for normal operation.
• Full 1-Year warranty from date of purchase against defects in materials and workmanship.