D1/D2 Accessories:

External battery kit – Attaches a third Tattu 12S 16000 MaH battery to payload bay. Takes either original or compact versions. Compact batteries require battery adapter kit(shown below).

Compact battery adapter kit – attaches to compact batteries for use on D1/D2. Each quadcopter ships with a pair of these adapters. Purchase additional kits if you have more than a pair of compact batteries.