Energizer AA Lithium Battery fits all ACR Firefly Strobe lights and directly replaces 4RM1B batteries.
Lithium batteries are designed for high-performance and long lasting use. With reliable, leak proof construction and superior performance in extreme temperatures, these AA Lithium batteries are a smart, economical choice.
Key Features:
- Directly replaces mercury 4RM1B battery
- Works on all existing FireFly products except the FireFly 4G/F
- USCG approved for 5-year replacement life
- Operational to -20° C (-4° F)
- Exceeds 8 hours continuous operational life
