Kymco Maxer Mobility Scooter

First drive on my Scooter with new batteries fitted and new camera. I weight about 32 stone and expect 10-15 mile range with the new batteries. The trip I did this day was 5.12 miles and I lost 2 out of 10 battery bars. According to the Bluetooth Current Shunt the motor took 18amps from the batteries. Batteries are 2 x Yuasa REC80-12I Camera is DJI Osmo Action 4