Extend the range of your Duo with this battery and enclosure combo! Please note (very important):
We do not officially support the installation of a second battery. This means we do not provide instructions or email support on how to install them. It is also at your own risk. The necessary cables to attach the batteries together are NOT included, they must be supplied on your own.
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***International customers, please contact us for a shipping quote. Shipping is NOT free for international customers.