CR-123 batteries are very expensive if purchased through retail outlet stores at nearly $8.00 ea. Parallax evaluated every major brand on the market with a 200mA 3V current draw test. The results of these test showed that the Rayovac CR-123A batteries had 95% or more capacity than the other leading brands. These test results will be posted on this product page when the Penguin is released in July 2007. We endorse and supply the Rayovacs so you don't have to pay more for your CR-123 batteries.

• 3V 1400mAh Lithium Battery
• Wide operating temperature range: -40^oC to 85^oC
• High operating voltage of 3V and high energy density
• 10 Year Shelf Life Low self-discharge rate (0.5% per year at room temperature)
• Higher Capacity & Longer Runtime.
• Longer Storage Life Li-ion chemistry provides 10 year storage life. Li-ion formula enables stability over a wide range of temperatures.
• UL approved