Shimano di2 bcr1 chargerdi2 charger for the external battery that will keep your di2 system shifting featuresdi2 uses a powerful long life 74v li ion battery keep it in top condition and ready for shifting with this specific shimano di2 charger15 hour charge timeplug not includeda 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products buy shimano components from chain reaction cycles the worlds largest online bike store