Amerex Strike Battery, OEM - 24903
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Wholesale PricingThe Amerex 24903 is the OEM replacement battery for the STRIKE Electronic Control System (ECS), Amerex's electronic detection and actuation platform for the KP restaurant fire suppression system. The STRIKE unit requires two of these batteries, one serving as the primary power supply and one as a secondary backup, providing continuous fire detection and suppression system actuation without dependence on external AC power. This means the STRIKE system remains operational during a power failure, exactly the kind of emergency scenario where fire detection reliability is most critical.
Per Amerex's own system documentation, these are non-rechargeable batteries. Each battery is rated to sustain the STRIKE electronics for up to six months under normal operating conditions, at which point it should be replaced as part of routine maintenance. New batteries in storage can be held for up to ten years in cool, dry conditions before being placed in service, making it practical to keep a spare pair on hand without concern about shelf life. Two batteries are required per STRIKE unit and should be replaced as a matched pair rather than individually.
| Feature | Details |
|---|---|
| Manufacturer | Amerex Corporation |
| Part Number | 24903 |
| Component Type | Non-Rechargeable Replacement Battery |
| Quantity Required Per STRIKE Unit | 2 (Primary and Secondary) |
| Service Life | Up to 6 Months Under Normal Operating Conditions |
| Shelf Life (Stored) | Up to 10 Years in Cool, Dry Conditions |
| System Compatibility | Amerex STRIKE ECS (Electronic Control System) for KP Kitchen Suppression Systems |
| Shipping Compliance | UN/DOT Compliant |
Battery replacement in the STRIKE ECS should be performed by an Amerex-certified installer following the STRIKE KP combined manual procedure.
- Replace as a Matched Pair: Always replace both the primary and secondary batteries at the same time. Mixing a new battery with a partially depleted one creates an imbalance in the backup power configuration.
- Six-Month Replacement Interval: Replace both batteries every six months as part of scheduled maintenance, regardless of apparent battery condition. The STRIKE system can signal a low-battery condition, but do not wait for a fault alarm before replacing.
- Non-Rechargeable: These batteries are single-use and must be properly disposed of after removal. Do not attempt to recharge them.
- Semiannual Service Coordination: Battery replacement aligns with the semiannual maintenance schedule required under NFPA 17A, making it a natural part of the same service visit.
Why does the STRIKE system need batteries if it is wired into the building?
The STRIKE ECS is specifically designed to operate without external AC power. This is a critical design feature: a fire that causes a power failure should not simultaneously disable the fire detection and suppression system. The two batteries provide continuous power independent of building electricity, ensuring the system can detect and actuate during the exact scenarios when a power failure is most likely to coincide with a fire event.
Can I use a generic lithium battery of the same size?
No. Only Amerex OEM P/N 24903 should be used in the STRIKE ECS. Generic batteries may differ in voltage output, discharge characteristics, or connector compatibility in ways that affect the STRIKE unit's monitoring and actuation reliability.
How do I know when the batteries need replacement if there is no visible indicator?
The STRIKE system monitors battery condition and can signal a low-battery fault condition. However, the recommended approach is proactive: replace both batteries every six months as part of scheduled semiannual maintenance rather than waiting for a fault signal that indicates the batteries are already degraded.
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