Connector DC Barrel vs Connector Rosenberger: specs compared
Updated 05 September 2026.
5
specs differ
Connector DC Barrel and Connector Rosenberger differ on 5 specs: pins / contacts, current rating, voltage range, locking, common uses.
| Spec | Connector DC Barrel | Connector Rosenberger |
|---|---|---|
| Pins / contacts | 2 conductors: centre pin and outer barrel, no data pin | magnetic contact face, self-aligning, snaps on and pulls off cleanly |
| Current rating | typically up to about 5 A, best for lower-power packs | sized for the pack, typically a 4 A charge on Specialized |
| Voltage range | common on 36 V to 54.6 V charge outputs | used on 36 V (42 V charge) high-end packs |
| Locking | non-locking, friction fit | magnetic, self-aligning, no exposed pins to bend |
| Common uses | budget and mid-range e-bikes, scooters and many hub-motor packs | high-end e-bikes, notably Specialized Turbo, where it charges through a magnetic port |
Questions and answers
How do Connector DC Barrel and Connector Rosenberger compare?
Connector DC Barrel and Connector Rosenberger differ on 5 specs: pins / contacts, current rating, voltage range, locking, common uses.