ADT Security Manager 2000 Alarm System Battery 12v 4.5Ah
OSI Batteries is your One Source for replacement ADT Alarm System backup batteries. This 12v sealed rechargeable battery fits ADT Security Manager 2000 model security alarm systems. We recommend checking your existing battery for size and specifications prior to ordering as manufacturers may change requirements without notice.
| Chemistry: | Sealed Lead Acid |
| Nominal Voltage: | 12v |
| Nominal Capacity: | 5Ah |
| Dimensions (In.): | 3.54 x 2.76 x 3.98 |
| Terminals: | .187" F1 |
| Weight (lbs): | 3.79 |
| Warranty: | 12 months |
| Condition: | Brand New |
| Notes: | 3-5 Year Design Life |
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.
March 16, 2026 by Dennis R. (MA, US)
“Guidance in choosing the proper battery was quick & easy and so was the ordering process.”
March 12, 2026 by Andy L. (NY, US)
“Good”
March 11, 2026 by KEYMI O. (TX, US)
“very easy to purchase”
