ABLEX Plug-In Charger 12V, 750mA Unregulated, Single Stage w/ Barrel Connector
Plug In Power Supply, Class 2 Transformer 

72" DC Leads w/ 5.5mm x 2.1mm Barrel Connector, Positive Pin

Specifications

Input Voltage: 120VAC
Input Frequency: 60 Hz
Output Voltage: 12VDC
Output Current: 750mA
Battery Size Range: 2Ah ~ 7Ah
Certification Standards: UL, CSA
Dimensions:
L: 2.8" (71mm)
W: 2.3" (59mm)
H: 2.1" (53mm)
Wt: 1.00 lbs
Model: 138-12-750D-B