Easy to use hearing aid battery tester. Tests remaining battery life and displays on an easy-to-read meter.
- Separate size slots for each type of battery
- Compatible with hearing aid and cochlear implant battery sizes: 675, 13, 312 & 230/10
1. On the battery to be tested find the positive (+) polarity mark. 2. Insert battery into proper size slot with positive (+) side down. 3. Push down on the blue panel and hold for several seconds. 4. Read the meter to determine the condition of the battery. Red-Replace: Green-Good