Hello! I'm pretty new to owning a Prius (2010) and I've been peeking at these forums every single day for tips and tricks, especially with the MPG but after everything I've determined it's probably the battery needing some love. I'm located in Oregon, United States and wanting to buy a used Prolong Reconditioning Kit as opposed to super new to save some money. Lemme know if I posted on this section wrong~
"Reconditioning" will NOT save a 12 year old, worn out battery. It just won't. It might buy you a few more months but it will be a temporary "fix".