The 5D uses an old battery format that is increasingly difficult to source. It also is becoming difficult to service. So that $300 bargain might have to be dis

The 5D uses an old battery format that is increasingly difficult to source. It also is becoming difficult to service. So that $300 bargain might have to be disposable. I usually recommend the previous generation old for DSLR. At phase-out Canon manufactures enough spares for an anticpiated five to seven years of servicing.