\n\t\t\tShimano BT-DN300 Di2 Internal Mount Battery, 3-port
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\n\t\t\t- \n\t\t\t\tThe use of a single small and discreet internal battery is light weight, efficient and creates a robust and reliable system
\n\t\t\t- \n\t\t\t\tOne charge gives a 1000 kilometre range depending on conditions and front mech operation (as this is the main power drain)
\n\t\t\t- \n\t\t\t\t500 times rechargeable life
\n\t\t\t- \n\t\t\t\tBattery is to be mounted with seatpost or frame/fork manufactures hardware normally inside the seatpost or seat tube/fork steerer
\n\t\t\t- \n\t\t\t\tReliable and secure water resistant SD300 E-tube terminals connection
\n\t\t\t- \n\t\t\t\tCharging is done via rear derailleur, or junction box
\n\t\t\t- \n\t\t\t\tBattery weight is 50 grams
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\n\t\tThe power house of Shimano Di2 is a long-life 7.4V Li-Ion battery that is both compact and reliable, taking shifting effort away from you.
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\n\t\tShimano Di2 battery is only compatible with Shimano systems, please check this detail before purchasing.
