Hahnel HC-30D Canon Type Battery Grip with 1 x HL-511 battery

A Hahnel Battery Grip is simply a must have power accessory for every Canon 20D/30D/40D/50D digital SLR owner. This battery grip uses x2 Li-ion rechargeable batteries offering double the power for longer uninterrupted camera use. With the battery grip in place you can avoid running out of power at that critical moment. The Hahnel battery grip also offers a very flexible power solution, power your Canon 20D/30D/40D/50D camera from the x2 Li-ion batteries or in an unexpected situation from additional rechargeable Ni-MH or alkaline AA batteries (Not included). Built-in Power Management regulates the power output to your Canon 20D/30D/40D/50D camera for maximum efficiency. The Power Management also detects use of Li-ion or AA - Double the power, with 2 Li-ion Batteries - Flexible power solution, choice of Li-ion or AA mignon batteries - Built-in power management, regulates output to camera - Stylish design, matches perfectly with the camera - Improved handling, designed to lower the point of gravity - Storage com