Just got done playing some VR. the whole time FPSVR said my left controller was at 100% battery life, played for 90 minutes and it still said 100% battery life, meanwhile my right controller had gone down 15-20%.

Plugged in my controllers because the right one needs charging, but the left one instantly went from orange light to white light as if its full charge. Is there an issue here I need to be worried about, or does left controller just not drain battery power that much?