Rated 4.00 out of 5 based on 1 customer rating
(1 customer review)

$259.99

Mighty Max Battery ML100-12LI – 12 Volt 100 AH Deep Cycle Lithium Iron Phosphate (LiFePO4) Rechargeable and Maintenance Free Battery

SKU: ML100-12LI Category: Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
Thumbnail Short Description Price Add to Cart Button
1 Pack $259.99
Pack of 2 Pack $509.99
Pack of 4 Pack $999.95
Pack of 3 Pack $759.99
Invest in power with the Mighty Max 12V 100ah Lithium Iron Phosphate Battery. The ML100-12LI 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 30 lbs. and being a direct drop in replacement for its sister sealed lead acid and Gel batteries which weigh a hefty 60 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 or in series with a maximum of 4 identical batteries. Battery ships minimally charged. To ensure optimal performance we kindly ask you to charge the battery to full capacity before using it for the first time. 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: 100 AH
Terminal: Internal Thread
Chemistry: Lithium Iron Phosphate
Battery Dimensions:
12.99 in x 6.77 in x 8.66 in
Weight: 29.54 Lbs
Warranty:
2 Year
Multi Packs Bundled Savings

Pack of 2 Pack, Pack of 3 Pack, Pack of 4 Pack, 1 Pack

1 review for Mighty Max Battery ML100-12LI – 12 Volt 100 AH Deep Cycle Lithium Iron Phosphate (LiFePO4) Rechargeable and Maintenance Free Battery

  1. Rated 4 out of 5

    Peter J. Brown II

    This is my second Mighty Max 12V Lithium 100aH battery. A simple display has been added to display state of charge (3 bar graph), voltage as xx.x, and days since with a simple one button toggle. It’s located on top of battery. I have a simple solar charging setup( 4 x 100W solar panels, 30 A MPPT solar charge controller, 2 x 100ah lithium batteries). I have observed the MPPT (USER charge settings) is reporting 300 to 1000 watts charge daily (even on cloudly). I have observed 13.2 V at dusk and depending on overnight load a minimum voltage of 12.8, daily max voltage is limited to 14.2V and max amperage observed was 28A. Prior to adding 2nd battery in parallell, I did run my first battery to 10.8V (BMS cutout voltage) twice as reported by the MPPT charge controller, the battery seemed to recover as expected (caused by empty propane tanks and furnance attempting to operate continously, in cold cloudly weather). With the added wattage of the 2nd battery, my RV appliances seem to be operating better, diagnostic and monitoring instrumentation are planned for next year. Overall, I expect these batteries to last longer than the 2 x 75A setup of the original RV. 2022-05-07

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Excellent
Mighty Max Battery
Based on 4585 reviews
I purchased the Mighty Max ML7-12 12V 7.2Ah battery on Amazon in June 2026 to replace the battery in my APC Back-UPS ES 550, and it worked perfectly. The battery was very reasonably priced, arrived quickly, and was incredibly easy to install.

The fit was exact, the connections were straightforward, and my UPS was back up and running in just a few minutes. Now my modem and Wi-Fi system stay powered during outages and power flickers, which has eliminated the need to constantly reset my network equipment.

If you’re looking for an affordable, reliable replacement battery for a UPS, alarm system, or other backup power application, I highly recommend the Mighty Max ML7-12. Great value, easy installation, and excellent performance so far!
POWER PROVIDER!! Love It.
Great battery. Working perfectly in my garage door openers.
Batteries were easy to install. I've used this product before - no issues
Nice products, used many and enjoyed all. Really high quality batteries and chargers,!!! 👍
The Mighty Max battery is a great product and outstanding value, outperforming batteries costing triple the price.
Received on time
Ordered as a replacement battery for a 2016 Honda PCX150. Received with a charges which was a nice plus. Battery was fully operational when received and installed. Only issue is in the terminal attachments in that the “keeper” nut would not stay stationary within the battery terminal hubs when trying to screw the terminal to the cable(s). Had to shim and/or tape them in place in order to start the bolts and complete the attachment to the battery terminals. Otherwise appears to be a good replacement battery. Would purchase another when the time comes,
Shipped timely, looknforward to installing it.
Battery was received from UPS in a beat up box with a lot of dirt and ink stains on the outside of the box. The inner box with the battery was unharmed. This was an Amazon ship and the packaging was not up to their standard.