Joined May 2009
L5: Journeyman
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Anyone used Tenergy 9v lithium (NON-rechargeable) for smoke detectors?
October 10, 2023 at
08:36 PM
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Our First Alerts came with hilariously crappy "Heavy Duty" batteries (had another Kidde fail at about 5 years old), but even if they came with alkalines, I'd probably still replace them just to avoid having to change them so often. The Energizer lithium 9v is now up to ~$16 for one while I can get 2 of the Tenergy for the same price. I know their rechargeables have mixed reviews (which seem to be the only reviews I can find), but I'm curious if anyone's tested their non-rechargeable lithiums. If not, I may end up using alkalines just because the Energizers are too expensive. Only worth it if we had vaulted ceilings or other awful locations.
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