IMPORTANT PLEASE NOTE: These firefly batteries are sold at a clearance price due to the fact the manufacturer of firefly has become non responsive to their dealer distributor network. Due to this fact we can only provide a 1 YEAR TOTAL BATTERY WARRANTY on them, any failure of the batteries during the warranty will be prorated and a customer credit will be issued on your account there will be no cash refunds. All sales are final and returns are not permitted under any circumstance. Please consult the Firefly User Manual for Proper Charging instructions, failure to follow the Firefly charging recommendations may damage your battery and void your warranty.

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Developed by scientists at Firefly Energy, Microcell ^TM Carbon Foam is a material that's revolutionizing the battery industry. Compared to lead plates — one of the main components of all lead acid batteries, carbon foam delivers longer service life, increased energy efficiency and better performance under extreme conditions. That's why we used it to create our revolutionary Firefly MCF battery.

Firefly carbon foam design resists sulfation and corrosion (two of the primary causes of failure in lead-acid batteries), while dramatically increasing the surface area within the battery, resulting in greater energy capacity, faster recharges, and deeper discharge capability.

Sealed – requires no maintenance More than 3-4 times cycle life compared to flooded gel & AGM VRLA batteries at 50% DOD. Lower cost per kWh delivered compared to premium VRLA batteries. Unmatched ability to recover from extended storage in discharged state. Throughput efficiency greater than 90%. Improved high/low temperature performance. Superior protection against corrosion and sulfation related problems. Available with Battery Energy Management System (BEMS) . Lowest Cost of ownership Industry leading warranty. Compatible with existing lead acid battery recycling infrastructure. Outstanding long life even under partial state of charge operation.

• Partial State of Charge Cycling Efficiency: Ampere-Hour >97% and Watt Hour >90%
• Nominal Voltage: 12V
• Maximum Charge Voltage: 14.40V
• Maximum Charge Current: Up to 1C
• Internal Resistance: <4 mΩ
• Shelf Life @ 25°C (77°F): 2 Years
• Self-Discharge: <3% Per Month
• CCA: 720 Amps

Dimensions:

• Weight: 76lbs / 34.5kg
• Length: 13.4in / 340mm
• Width: 6.8in / 172mm
• Height: 9.4in / 238mm
• Volume: 856.5 Cu.in / 13.9 liters

Construction:

• Terminal Configuration: 3/8" - 16UNC
• Case/Cover: Poly Propylene - Co Polymer

Battery Life Cycles:

DOD%	Cycles
30	9000-13500
50	3600-4200
65	1800-2400
80	1000-1300
100	600-800

** All ratings above are @ 25°C (77°F)**

Discharge Rates to 1.75V Per Cell*

0.25	180	45	0.54
1	68	68	0.82
3	29.3	87.9	1.05
5	19.2	96	1.15
10	11	110	1.32
20	5.8	116	1.39

International Compliance

• IEC 60896 -21/22 :2004
• IEC 61427
• IS 15549:2005
• ISO 9001:2008
• IEC 60095

Charge Temperature Compensation:

Operating Temperature	°C	-20	25	40	50
Operating Temperature	°F	-4	77	104	131
Absorption Charge Voltage	V	15.6	14.4	14.1	13.98