$120at N+1 BikesBuyN+1 BikesShimano BCR1 E-Tube Battery Charger for BA7970 (BTR1) W/O Power Cable$120N+1 Bikes$120BuySaveShareN+1 Bikes profileThe creators who use it, or GearCred, may earn a commission when you buy through these links, at no extra cost to you.From N+1 BikesShimano Di2 Battery Chargers