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TIGER HEAD HI WATT BATTERY HK CO LTD via Amazon [amazon.com] has 24-Pack HW 3500mAh 1.5V AA Lithium Batteries on sale for $29.99 – 45% off auto-applied at checkout = $16.49. Shipping is free w/ Prime or $35+ orders.

About:Non-rechargeable 3500 mAh AA lithium batteries
−40°F to 140°F operating range
Triple-sealed leak-proof construction
20-year shelf life