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
Features
- Purchase includes: 1 Activair Battery Tester
- A consumer-style battery tester. Separate size slots for each type of battery.
- Use with hearing aids
- Brand: Serene Innovations
- 1 year manufacturer warranty
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