Battery for Canon EOS 1D X Mark II EOS 1Ds Mark III EOS 1D C 580EX 3400mAh
100% compatible for Canon batteries - Fully compatible with Canon EOS 1D X EOS 1D Mark IV EOS 1D X Mark II 550EX EOS 1Ds Mark III EOS 1Ds Mark III 540EZ EOS 1D Mark III 580EX 580EX II EOS 1D C EOS 1D X Mark III EOS R3.