Energizer Ultimate Lithium AA 8-Pack — 20-Year Shelf Life, -40°F Rated! $29.00 CAD (52% Off)

Amazon.ca has the Energizer Ultimate Lithium AA 8-pack for $29.00 CAD (list $59.99, 52% off). Prime members ship free; otherwise free over $35.

Lithium isn't the same chemistry as alkaline: steady 1.5V, rated from -40°F to 140°F, so a pack left in an unheated garage over a Canadian winter still works. They weigh a third less than alkaline and hold a charge for up to 20 years in storage — buy a pack, forget about it, still good years later.

They pay off in the devices that actually eat batteries: smoke detectors, Blink-style security cameras, game controllers, kids' toys. One reviewer reports swapping the low-traffic Blink cameras in their yard every two to three years, high-traffic spots every 12-18 months — that's fewer trips up a ladder. And for the annual smoke detector change, lithium holds voltage better than alkaline.

Eight cells for $29 works out to about $3.60 each. More than alkaline up front, cheaper per year of use, and no leaking cells eating your battery compartment.

One practical note from buyers: don't let the parcel sit outside in extreme heat or cold — batteries lose charge in extreme temperatures. 4.6 stars from over 50,000 reviews, #8 in AA batteries.

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