Unitech Ni-Cd AA900mAh 3.6V Battery Emergency Light
OSI Batteries is your One Source for replacement Unitech Emergency Light batteries. OSI Batteries OSA257 is a rechargeable 3.6v NiCD battery that replaces Unitech AA900 3.6V batteries.
We recommend checking your existing battery for size and specifications prior to ordering as manufacturers may change specifications without notice.
We recommend checking your existing battery for size and specifications prior to ordering as manufacturers may change specifications without notice.
| Application: | Emergency Light, Exit Sign |
| Original Manufacturer: | Unitech |
| Device Model: | AA900mAh 3.6V |
| Nominal Voltage: | 3.6v |
| Nominal Capacity: | 1.0Ah |
| Chemistry: | Rechargeable NiCD |
| Weight (pounds): | 0.6 |
| Terminals: | Plug |
| Battery Manufacturer: | OSI Batteries |
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.
December 5, 2025 by ROBERT N. (CA, US)
“great”
December 5, 2025 by Robert B. (NC, US)
“You had the part I needed, and made finding and buying it easy”
December 3, 2025 by CAP (WA, US)
“Detailed description of battery specifications and dimensions.”
