Comments about Celestron Celestron Dual Axis Motor Drive with Hand Controller for Advanced C5 S, C6 R, C8 S, C 9 1/4 S, C8 N, C10N (Non GT) and CG-5 Mounts.:
Good solid product. Silent, smooth operation. Installation was easy although the instructions are somewhat sketchy. The added bulk of the motors causes some motion interference problems hence the 4 stars rather than 5 stars, but they are minor. Can't comment on battery life yet as I've only used it a couple of times.