Review on Long-Lasting Power: Ultralast UL129VB 9V Alkaline Battery, 12 Pack by Kevin Berhane
Insufficient durability: 9V
I bought a bunch of these batteries less than two years ago. When I recently installed them in smoke detectors, I noticed that they had kind of died. Five of the sealed cases had an open circuit voltage of less than 5 volts. Something has deteriorated in these batteries. The expiry date (best before) was 02/2014.
- Household supplies
- Requires outlet
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