you are doing a gr8 job. on those babies.I can see how they have grown since you first posted.
The video was jest to cute.
A friend of mine recently had a baby bat for 10 days. it was adorable. I'm not a vet , jets an ex RN, the baby bats stools (bowel movements) looked kinda greeninsh and unformed. it died several days after being taken off cow's milk and started on mooshed meal worms.
My friend said he had a real education on bats by doing research on line.
good luck with your babies.