Yes, you will save gobs of money! I don't have exact numbers, but consider that each charge costs 5 cents or less (depending on your electric rate) whereas new batteries cost much more. Recharging is also better for the environment because batteries contain hazardous chemicals that should not be in landfills or incinerators.
You'll probably have more luck with this thread in the Healthy Home & Body forum.
You'll probably have more luck with this thread in the Healthy Home & Body forum.