SwitchBot Curtain Smart Electric Motor

I purchased 2 in December 2021 to have blackout curtains on a continuous metal rod open from middle to sides or close from sides to middle; I also purchased the solar panels that charge the motors during sunlight. Two months later I finally got around to installing everything and it was rather simple. I configured using the SwitchBot app on my android the 2 units to operate in tandem. I was pleasantly amazed to see it working; I even set it up so that the curtains would auto close at 11pm and open at 11am. Wow! My only peeves were that the motors were a little noisy when they operated for the 15 or so seconds that they opened or closed the curtains which I decided to tolerate; also, the motors to me somehow seemed a bit weak or were struggling but I was ok with this too so long as they worked. About two months later, one of the units could close or open only half the way; recalibrating and resetting didn't work; the batteries were fully charged; I could hear the motor chugging midway but it's as if it hit a steep incline and just didn't have enough power to finish. About a week or two later, the identical thing started happening to the other unit. The worse part was/is that I then needed to climb up to manually by hand slide both units to fully open or close the curtains.....every morning and night. Earlier this week, both units died; no power at all from the motors though my android app can still communicate with both units. Since then, every morning and night I have to climb up to manually open and close the curtains. I've tried resetting and recalibrating but nada; batteries are fully charged. I am especially disappointed with myself because I took the time to read the comments very well before deciding to purchase and decided to overlook as anomalies some reviews detailing this very problem. I just sent a support request to SwitchBot at their website hopeful that they'll provide a resolution that will restore my satisfaction with the products. I'm keeping my fingers crossed. I'll come back here in a few weeks to provide an update or sooner if they respond sooner.