“The battery pack itself is the majority of the cost with variations ranging from around $1,000 to $6,000, although most batteries for common models tend to be under $3,000. Along with the battery itself, you’ll need to pay a certified mechanic to install the high-voltage battery. The job often takes a few hours, and sometimes more than a full day.”
from AutoZone website
to clarify post #132
price for hybrid batteries