Sony A7R IV A7R IV very fast discharge problem

[Abloub]

Hi,

My firm bought an A7R IV this summer. The batteries discharge very fast : if I put a 100% charged battery in the evening, the following day the camera doesn't light, the battery is already discharge, while the camera was not used at all. It does that with both batteries, both new and sony.
Do someone has an idea where this might come from ?

 

[Brownie]

Hi,

My firm bought an A7R IV this summer. The batteries discharge very fast : if I put a 100% charged battery in the evening, the following day the camera doesn't light, the battery is already discharge, while the camera was not used at all. It does that with both batteries, both new and sony.
Do someone has an idea where this might come from ?

Did you buy it new or used? If used, maybe try a factory reset. There are some custom settings in these things that will wear down a battery.