Use this Light & Motion Li-ion Bike Light Battery to replace your Seca 700 Race Bike Light's rechargeable battery when it kicks the bucket. This 11. 1-volt, 6-cell battery is lighter weight than equivalent NiMH batteries, thus making it ideal for race applications. Expect roughly 500 charge cycles from your Li-ion battery, and use Light & Motion's Smart Charger to re-juice. Return your dead bike light battery to Light & Motion for recycling.