About the stick vac. Google-battery replacement for the Electrolux model. You likely would have to buy the whole hand vac part. Batteries are soldered in and likely not replacable. Otherwise vac is great until batts lose capacity.
I’ve had two of these, one I purchased and one a gift both were terrible! The batter runs out very quickly and charging takes longer and longer with shorter and shorter run times. This is one WOOT I would RUN from!!!
TOTALLY agree with the above comments on the stick vac. I have purchased for family and myself over 5 of these slightly different year models. They have ALL done the same thing whether I let the battery completely drain out before recharging or not. DO NOT PURCHASE the stick vac!!!