The Pearstone 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.

• Instant and Precise

Enables the user to check remaining power inside a battery at a glance with 5-LED fuel gauge

• 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