Finding the right battery for exit signs ensures emergency lighting remains functional during power outages. This guide highlights five dependable options commonly used with exit sign fixtures, covering voltage, capacity, and compatibility. Each product sits within standard maintenance-free chemistries like sealed lead acid (SLA) and nickel-cadmium (Ni-Cd), offering long service life and broad temperature tolerance. Use the buying guide below to compare key considerations such as voltage, capacity, fitment, and replacement cycles.
| Product | Voltage / Capacity | Chemistry | Approx. Fit |
|---|---|---|---|
| Mighty Max ML4-6 | 6V 4.5Ah | SLA | Exit sign back-up |
| Mighty Max Exit Sign Battery 6V 4.5Ah Backup (2 Pack) | 6V 4.5Ah | SLA | Two-pack convenience |
| GSUIVEER 9.6V 900mAh | 9.6V 900mAh | Ni-Cd | BBAT0043A and compatible models |
| NEAFAZA 1.2V 900mAh Ni-Cd | 1.2V 900mAh | Ni-Cd | Exit light replacements |
| (Pack of 2) 4.8V 700mAh Ni-Cd | 4.8V 700mAh | Ni-Cd | Direct replacement kits |
Mighty Max ML4-6 – 6 Volt 4.5 AH
The Mighty Max ML4-6 is a 6V 4.5Ah sealed lead acid (SLA) rechargeable battery designed for emergency back-up, including exit signs. It features a maintenance-free design with UL certification and an F1 terminal. Dimensions are 2.76 inches by 1.89 inches by 4.21 inches. The listing focuses on the battery only, excluding any wiring harness or mounting accessories. SLA/AGM chemistry provides a high discharge rate, broad operating temperatures, and good deep-discharge recovery, making it suitable for critical emergency lighting scenarios.
Compatibility considerations include ensuring the exit sign’s battery compartment accepts 6V SLA packs of this size and that the terminal type matches (F1). Regular testing and adherence to local life safety codes are recommended to verify readiness for emergency operation. Due to its compact form, this battery is often preferred when space is limited in the fixture or enclosure.
Mighty Max Battery Exit Sign Battery 6V 4.5Ah Backup – 2 Pack
This item offers a 2-pack of the same 6V 4.5Ah SLA batteries, UL certified for reliability in emergency lighting. Each battery measures approximately 2.76 x 1.89 x 4.21 inches, with F1 terminals. The product description reiterates that it is a battery-only listing with no additional harnesses or mounting hardware. The 4.5Ah capacity provides a robust reserve for exit sign operation during power outages, while the SLA chemistry ensures low maintenance and spill-proof performance in standard indoor environments.
GSUIVEER 9.6V 900mAh Exit Sign Battery
GSUIVEER’s 9.6V 900mAh Ni-Cd exit sign battery targets models such as BBAT0043A, ELB-B003, and other common Lithonia and Unitech configurations. The package typically includes two batteries designed for emergency lighting replacements. Ni-Cd chemistries offer consistent performance across a wide temperature range and reliable recharge cycles, making them suitable for fixtures with higher voltage requirements. Compatibility should be verified against the exact model number of the exit sign to ensure proper voltage and terminal type.
NEAFAZA 1.2V 900mAh Ni-Cd Exit Sign Battery
NEAFAZA offers a 1.2V Ni-Cd battery rated at 900mAh designed for exit and emergency lighting. The 2-pack provides a direct replacement option for compatible 1.2V systems, with a focus on Ni-Cd chemistry that delivers consistent performance in standard indoor environments. The product notes emphasize its design for exit light compatibility, making it a practical option where 1.2V battery spectrums are required by specific fixtures or models.
(Pack of 2) Replacement Battery for Emergency Light EXIT Sign 4.8V 700mAh NiCad
This replacement set provides two Ni-Cd batteries with 4.8V and 700mAh capacity, tailored for emergency lights such as Emerlight Daybright and similar models. The listing specifies that these are direct replacements for specific exit and emergency lighting models, with a rechargeable Ni-Cd chemistry designed to support reliable back-up during outages. Compatibility should be confirmed with the exact model and voltage requirements of your fixture.
Mighty Max Battery Exit Sign Battery 6V 4.5Ah Backup – 6 Pack
This six-pack provides bulk capacity for facilities with multiple exit signs or high replacement frequency. Each unit is a 6V 4.5Ah SLA battery, UL certified, with a compact footprint and F1 terminal. The pack-oriented listing is convenient for property managers, schools, or offices needing ready stock. As with other SLA options, expect strong discharge performance, temperature tolerance, and straightforward maintenance with periodic checks.
GLESOURCE 3.6V 900mAh Emergency/Exit Light Battery
GLESOURCE offers a 3.6V Ni-Cd 900mAh battery designed for various emergency lighting models, including Lithonia and Unitech lines. The pack emphasizes multi-model compatibility and safety protections such as over-voltage, over-current, over-charge, and short-circuit prevention. This option suits fixtures that require a lower voltage with reliable Ni-Cd chemistry, ensuring steady output during emergency operation.
Buying Guide: Key Purchase Considerations
- Voltage compatibility: Confirm the exit sign or emergency light’s required voltage (1.2V, 3.6V, 4.8V, 6V, or 9.6V) and match the battery accordingly to avoid under-voltage or over-voltage issues.
- Chemistry and maintenance: SLA batteries offer maintenance-free operation and spill resistance, suitable for most indoor installations. Ni-Cd provides reliable performance across temperatures but requires proper disposal and recycling considerations.
- Capacity and runtime: Higher mAh or Ah ratings increase back-up duration but may affect size. Choose a capacity that aligns with your fixture’s power needs and the expected outage duration.
- Fit and terminals: Check terminal type (like F1) and physical dimensions to ensure a proper mechanical and electrical fit within the sign’s enclosure.
- Pack options: If managing multiple signs, consider multi-packs for cost savings and inventory efficiency. Verify that the pack contents match the required chemistry and voltage.
- Replacement interval: Ni-Cd and SLA batteries have different aging profiles. Establish a replacement schedule based on manufacturer guidance and performance testing results.
- Certifications and safety: Look for UL certification and compliance with local electrical and life-safety codes to ensure reliability during emergencies.
- Warranty and returns: Review warranty terms for defect coverage and replacement policies, especially for equipment used in critical safety applications.