This is a generic, equivalent one, 100% compatible. This 850mAh Replacement Lithium-ion battery is designed to compatible with Canon BP-308 BP-308B BP-308S DC50 DC51 HR10 MVX4i.

Specifications:
* Product Type: generic/equivalent
* Chemical Composition: Lithium-ion
* Voltage: 7.4V
* Capacity: 850mAh
* Dimensions: 63.20 x 40.40 x 9.90 mm
* Condition: new, 1 Year Warranty!
* Use Integrated microchip which can prevent overcharge and over-discharge.

Compatible with battery models:
BP-308, BP-308B, BP-308S

Compatible with the following Canon Camera/Camcorder models:
For Canon DC50,
For Canon DC51,
For Canon HR10,
For Canon HV10,
For Canon IXY DVM5,
For Canon MVX4i,
For Canon Optura 600

Battery Maintenance:
1. If you don't plan on using the battery for a month or more, store it in a clean, dry, cool place away from heat and metal objects.
2. Ni-CD, Ni-MH and Li-ion batteries will self-discharge during storage. Remember to recharge the batteries before use.
3. Always remove battery pack from your machine when you are assembling parts, making adjustments, cleaning, or when not being used for an extended time.
4. Do not leave the battery dormant for long periods of time. We recommend using the battery at least once every two to three weeks.