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Overview

How does the Deda Elementi DBA hold a Di2 battery in place?

The Deda Elementi DBA 27.2mm Di2 Battery Adapter holds an internal Shimano Di2 battery securely inside a 27.2mm seatpost. DBA stands for Deda Battery Adapter, and it fits inside the seatpost tube to keep the battery fixed where you put it. It is made from thermoplastic rubber, measures 70mm long, and weighs 14g, so it adds next to nothing to the bike.

Deda lists the DBA as compatible with both Shimano Di2 and Campagnolo EPS internal batteries. This version is sized for 27.2mm seatposts, and Deda makes a separate 31.6mm version for larger posts, so confirm your seatpost diameter before you order. It is a small part, but a battery that stays put is one less thing to think about when the road gets rough. If you are running an internal battery in a 27.2mm post, this is the piece that keeps it where it belongs.

All the specs

Model
DBA Deda Battery Adapter
Diameter
27.2mm
Length
70mm
Material
Thermoplastic rubber
Color
Black
Weight
14g
MPN
DI2BATAD27

Works with

  • Shimano Di2 and Campagnolo EPS internal batteries

FAQ

Good questions

What size seatpost does the Deda DBA 27.2mm battery adapter fit?

The Deda Elementi DBA 27.2mm Di2 Battery Adapter fits seatposts with a 27.2mm diameter. Deda makes a separate 31.6mm version for 31.6mm seatposts, so check your post before ordering.

Which batteries work with the Deda DBA battery adapter?

The Deda Elementi DBA battery adapter works with Shimano Di2 and Campagnolo EPS internal batteries, according to Deda. It fits inside the seatpost tube and holds the battery in place.

How heavy is the Deda DBA Di2 battery adapter?

The Deda Elementi DBA Di2 battery adapter weighs 14g, per Deda's published specs. It is made of thermoplastic rubber and measures 70mm long.

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