I have not seen anything official from NEAH or Tectonica that says the BANTAM is powered by any NEAH product.
The Bantam is a power management system that will supervise the soldier power and various devices whatever the power system may be, batteries, solar or even fuel cell.
However I have not seen anything beyond the claim of a person who has claimed much happening in the future and delivered ZERO. And who now seems to be in statis, our esteemed Dr. Dcouto.
JMHO,
Bill