A popular battery to use is the 3s 2250mah Nanotech by Turnigy. This cage is designed to fit it as it is larger than the stock 2200mah supplied with the DJI Phantom.
The cage can be used to hang the battery on the d3wey FPV Custom Undertray but can also be used on its own (by which I mean on another craft such as an F450, F550 etc). Fitment to the Phantom without the undertray can be done but will require the use of adhesive velcro. It comes supplied with retaining pin.
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