When riding at night, lights are especially important to ensure our safety and allow others on the road to discover us in time to reduce unnecessary accidents.
Lithium-ion batteries are used in rechargeable systems. The battery can be recharged hundreds of times, making it an inexpensive and environmentally friendly alternative to disposable batteries.
Unlike alkaline batteries, which slowly dim over time, most rechargeable batteries provide steady lighting until the charge is depleted. For this reason, most rechargeable lights have a "gas gauge" or low battery warning. The power light on all rechargeable devices indicates that power is available.
Despite their small size, lithium-ion batteries have an excellent power-to-weight ratio, and they are characterized by long runtimes. It's easy to keep them charged because they don't suffer from memory effects.
Maintaining Your Battery System
More than 500 charge/discharge cycles are possible with most rechargeable batteries. A USB charger or a power cord can be used to charge self-contained units.
Be sure to fully charge batteries before storing them, but do not overcharge them. Smart chargers automatically stop charging the batteries when they are fully charged to prevent overcharging. Plug in and charge your system before every use, since inactive batteries lose charge over time.