This is a generic, equivalent one, 100% compatible! 3.70V 4300mAh replacement/equivalent battery is 100% compatible with Panasonic CS-HCV310MX VW-VBT380 Camcorder.

Replaces the following Panasonic battery model:
CS-HCV310MX, VW-VBT380

Compatible with Camcorders models:
HC-250EB
HC-550EB
HC-727EB
HC-750EB
HC-770EB
HC-989

HC-V110 HC-V110GK HC-V110MGK
HC-V130
HC-V160 HC-V160K HC-V160GK
HC-V180 HC-V180K HC-V180GK
HC-V201
HC-V210 HC-V210M HC-V210GK HC-V210MGK
HC-V230M
HC-V250
HC-V270 HC-V270GK
HC-V360M HC-V360MS
HC-V380 HC-V380K HC-V380GK
HC-V480M HC-V480MS
HC-V510
HC-V520 HC-V520M HC-V520GK HC-V520MGK
HC-V550 HC-V550M
HC-V620M
HC-V710
HC-V720 HC-V720M HC-V720GK HC-V720MGK
HC-V750 HC-V750M
HC-V770 HC-V770K HC-V770GK HC-V770MGK
HC-V800 HC-V800K

HC-VX1 HC-VX1K
HC-VX870 HC-VX870K HC-VX870GK HC-VX870MGK HC-VX870MGKK
HC-VX980GK HC-VX980M
HC-VX981 HC-VX981K

HC-W570M HC-W570GK HC-W570MGK
HC-W580 HC-W580K HC-W580GK HC-W580MGK
HC-W850 HC-W850EB HC-W850M HC-W850GK HC-W850MGK
HC-W870M

HC-WX970M HC-WX970GK HC-WX970MGKK
HC-WX990M HC-WXF990MGK HC-WXF990M
HC-WXF991 HC-WXF991K
HC-WXF1 HC-WXF1K VXF-999

Specifications:
◆ Product type: generic/equivalent
◆ Condition: brand new, 1 year warranty!
◆ Voltage: 3.70V
◆ Capacity: 4300mAh
◆ Battery Type: Lithium-ion / Li-ion
◆ Weight: 45.5 g
◆ Dimensions: 43.42 x 30.74 x 22.78 mm