Mighty Max Battery ML10-12LI - 12 Volt 10 AH Deep Cycle Lithium Iron Phosphate (LiFePO4) Rechargeable and Maintenance Free Battery

$49.99

12V 10AH Lithium Replacement Battery for Fiamm 12 FLX 500

Name: 12V 10AH Lithium Replacement Battery for Fiamm 12 FLX 500
SKU: ML10-12LI618
Availability: InStock

Availability: In stock

SKU: ML10-12LI618 Category: LiFePO4

Invest in power with the Mighty Max 12V 10ah Lithium Iron Phosphate Battery. The ML10-12LI will take your deep cycle battery experience to a whole new horizon. Manufactured with the highest quality components and the customers safety in mind, this battery contains a battery management system (BMS). BMS provides all kinds of protection for the battery and customer, equipped with Over charge and short circuit protection. Weighing only 4.52 lbs. and being a direct drop in replacement for its sister sealed lead acid and Gel batteries which weigh a hefty 6.15 lbs. Lighter, stronger and longer life span with 2500 cycles makes this the ideal battery for all your Deep Cycle applications such as, Solar / wind energy systems, Off Grid systems, RV, Camping, Backup power systems and much more.

Attention – Designed to be used in parallel with a maximum of 4 identical batteries. Do not connect in series. Make sure to only use a compatible lithium charger for this battery and tightly screw the terminals. Having loose terminals will cause a buildup of heat resulting in damage to the battery.

Specifications:

Voltage: 12 Volt

Amperage: 10 AH

Terminal: F2

Chemistry: Lithium Iron Phosphate

Battery Dimensions:

5.88 in x 2.56 in x 3.88 in

Weight: 3.32 Lbs

Warranty:

2 Year

Volts	12V
Terminal	.250" – F2
Watt Hrs	128
Chemistry	LiFePO4
Length	5.88
Width	2.56
Height	3.88
Weight	3.32 Lbs
Quantity	1
Warranty	2 Year

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Mighty Max Battery

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Tracie G

Arrived as scheduled. Installed and works exactly as described. Would recommend.

Glenn Cummings

My order was delivered faster then expected, the battery is during the job that I purchased it for, I am happy with my purchase.

Charlie and Gretchen

Fit good looks good it’s new so I have no idea of long term survival yet . Generac xg8000e.

Alanna W

Works great in my chicken coup for the timed winter light—A+!!!

brian cardona

Had a power outage during the freeze that occurred in Texas in January 2026, and my UPS switched over to it's battery with no issues. However after the power came back I noticed the battery was refusing to charge. I looked online for a replacement and came across Mighty Max Battery and looked at other reviews for the specific model I was looking for and saw nothing but great things. I ordered my item and it shipped very fast and was able to swap out my old OEM battery for the Mighty Max replacement and it's proving to be as good if not better than the OEM model I had. I'm expecting it to last a very long time. Thanks Mighty Max Battery!

Tony ROBINSON

Great battery for the price

Stephanie Steelman

Just received a new 12v 18mA Mighty Max from Amazon for my Champion genset. Perfect replacement for the same battery purchased in 2019 (lasted 6+ years) which replaced the Original battery which lasted just 2 years.