So, you got a pair of Lezyne Femto Lights and you're ready to start commuting on your bike every night. Femto LEDs last a good long time 60 hours in Flash mode, but that isn't forever. You'll need some backup power. Lezyne CR2032 Batteries come in an 8 Pack. That should be enough to get you through the spring, summer, and maybe even the fall. Lezyne replacement batteries come in a machined aluminum tube with rubber end caps for storage and protection from moisture or dirt. The batteries are tested for capacity and quality before they leave the Lezyne factory. Lezyne CR2032 Batteries are compatible with Femto Front and Rear LED Lights.
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