B11418 Viasys Healthcare Vela Ventilator Battery 21542 Requires 4
Unipower B11418 battery fits Viasys Healthcare T-Bird ventilator and replaces Viasys 21542 batteries. Unipower B11418 is 12v 4.5Ah NIMH.
| Chemistry: | Rechargeable NiMH |
| Nominal Voltage: | 12v |
| Nominal Capacity: | 4.5Ah |
| Device Manufacturer: | Viasys Healthcare Inc |
| Application: | T-Bird Ventilator |
| OEM Part: | 21542 |
| Notes: | 4/Unit Required |
Reviews
We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
4.7
Out of 5.0

Overall Rating
96%
of customers that buyfrom this merchant give
them a 4 or 5-Star rating.
June 4, 2026 by George L. (DE, US)
“Quick and easy, got just what I wanted,”
June 3, 2026 by Michael H. (IL, US)
“Average”
June 1, 2026 by Leo G. (CA, US)
“OSI has what I need.”

