The Lezyne LED CR2032 Spare Battery 8 Pack are replacement Li-Ion batteries for the Lezyne Femto Drive LED. A great value pack.Lezyne LED CR2032 Spare Battery 8 Pack FeaturesEach Femto requires two batteries.Type: CR2032, non-rechargeable.Note these batteries fit, and are good for, many other cycling devices like types of heart rate monitors and cycle computers.
Best Price: £12.50 from Leisure Lakes Bikes