AA Lithium Battery

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