Review on 📷 Enhance Photography Experience: Canon Intervalometer Shutter Release Controller for EOS Rebel T6 T7 80D 70D 60D 60Da 77D T7i T6i T6s SL2 SL1 T5 T3 T5i T4i T3i T2i EOS R M6 M5 by Kipp Amundson

Have these for backup batteries as I will be shooting all day without power. I let the batteries charge for several hours. The charging LEDs are working properly and will turn green when complete. I put one in the camera to make sure it works. I get a message that it can't be charged in the cell and asks if I want to continue. I did exactly that and they work great. After a few weeks I connected the charger to charge the batteries before use. One showed a full charge so I took it back out of the charger. The other, hardly used, never turned green. I slid the battery to the other side and it immediately turned green so it was just a charge indicator. Time will tell how well they live up and hold a charge, but I'm comfortable using them in my expensive camera.