its a nice game really love these sort of management games, though I noticed some points that could be improved.
Once you are able to get 5 hamsters things just become a waiting game, as you are able to produce way more energy than necessary for one phone but has no means to increase how fast you gain sunflower seeds to buy another charger. And the wait can be a lot, i am actually writing this while i wait.
Path finding is a bit buggy but i learned that if you move the hamster wheel to the hamster that is stuck they get on the wheel so i was able to work around with that.
The things i think need the most improvement though are the ui controls, the buttons dont vanish when you click anywhere else or right click, most games of this kind if you click outside the button disappears and right click usually cancel an action. Another thing is buttons being covered by other objects, very noticeable with the wheels. there is also no way to cancel buying something i bought a bowl by accident and when i tried to cancel i couldnt, even tried to click the shop again but it only placed the bowl behind the shop button so maybe moving the ui to where you cant place things might be a good thing for a next game. anyway good job with it! (and i still dont have a second charger lol)