This is an external battery (holder) pack for the Digital Voice Recorder Pro and landline version of this recorder. Using an external battery pack enables longer performance, in a stand-alone situation, without the need for mains power.
Using this pack widens scope for deployment possibilities. Normally using a standard battery in the recorder would limit the straight recording time, but by using an external battery pack especially when using lithium ion batteries in the pack, will dramatically increase the deployment period. This results in being able to exploit the recorders memory capacity with the need for connection to a mains power supply, which in some situations is either not possible or undesirable
The pack uses a wired connection with a USB connector. This can be connected to the USB lead that is already provided with the recorder package, which in turn connects to the headphone socket of the recorder thereby getting an external power feed to the recorder. The battery pack takes 4 x AA batteries (not supplied). Typically, using standard alkaline batteries will ensure that the voice recorder unit stays powered for at least 5 days. Using Lithium Ion AA batteries will provide power for 15 days or more.
Is this a rechargeable battery pack?
No, this is designed to take 4 x AA size batteries (not supplied). You could of course use rechargeable AA batteries if required.
Can this battery pack be used for any other products?
If there is an external facility to accept USB power, then yes, this could be used for this in theory, although we have only tested the battery pack holder on our own recorders.