shimano di2 internal black

The Shimano Di2 Internal Mount Battery is the powerhouse of Shimano Di2 is a long-life 7.4V Li-Ion battery that is both compact and reliable, taking shifting effort away from you. Excellent sealing and reliability have been proven through repeated field tests in various riding conditions, including extreme temperatures, rain, mud, and cobblestone roads. Using a hard-wired battery system that is both lightweight and accurate compared to current wireless technology (as a wireless system would require 4 batteries: one for the RD, one for the FD, and one for each shift leversShimano Di2 Internal Mount Battery FeaturesOne charge can give between 1000 and 2000 kilometre range depending on conditions and front mech operation (as this is the main power drain)500 times rechargeable lifeInternal chip enables system wireless functionality of Bluetooth componentsThe battery is to be mounted with seat post or frame/fork manufactures hardware normally inside the seat post or seat tube/fork steererReliable and secure water resistant E-tube terminal connectionCharging is done via stem junction or handlebar displayThe battery weight is 50 grams