This AC adapter plugs into wall at one end and your camcorder at the other and inbetween is a sealed box that converts volts. If the adapter and its cords are damaged, the camcorder will not receive power and its battery won't recharge.
Some possible reasons why AC adapters fail:
Incorrect power received that stresses components.
Heating up too much and not cooling down correctly.
Internal parts have corroded.
Please check model fit list to ensure this part is correct for your model.
Also Known As: Battery Pack, Power Pack, Rechargeable Battery, Cell
Type: AA-VF7EK
Compatible with JVC BNVF707, BNVF714 & BNVF733 batteries