The Impact Universal Battery Tester EC741 for AA, AAA, 9V, CR-V3 and 2CR5 Batteries is a neat little accessory to stash in your gear bag, luggage or pocket. This little beauty is like having a battery "doctor" with you all the time.
Using its fuel gauges, it will conveniently let you know the status of your batteries. It's like having an extra pair of eyes to watch out for your "charge" while you concentrate on shooting.
Note:
It is NOT a charger. Does not accept CR-2 batteries
Instant and Precise
Enables the user to check remaining power inside a battery at a glance with 5-LED fuel gauges
Smart Circuitry Plus Universal Design
Compatible with both rechargeable and primary AA, AAA, 9V, CR-V3 and 2CR5 batteries
Microprocessor Controlled
Capable of detecting battery voltage automatically
Compact and Light
Easy and convenient to carry in a camera bag
Self-operation
No extra power (such as batteries or AC adapter) required for normal operation
5-Level LED Fuel Gauge