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The Mighty Max ML100-12 is a sealed 12V 100Ah absorbed glass mat (AGM) battery built as a replacement for group 31 lead-acid batteries such as the SLI31D31XD. Its calcium-alloy grid is designed for both float and cyclic use, and the valve-regulated, spill-proof case can sit indoors or in enclosed spaces without maintenance. At about 64 lb and roughly 12.1 x 6.65 x 8.48 inches, it fits group 31 trays and is aimed at solar banks, trolling motors, mobility scooters, backup power and engine-start duty. Against premium AGM brands it trades a shorter one-year warranty and lower cranking ratings for a straightforward deep-cycle replacement; owners of similar Mighty Max SLA packs report solid capacity for the money but mixed long-term life.
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Out of stockSold by eComelectronicsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
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Lowest price we've seen: $180.00 on Nov 12 at Lowe's. Tracked across 1 store since Nov 12.
Owners of Mighty Max SLA batteries generally report they arrive charged and hold voltage well in solar, trolling motor and backup setups. Complaints center on shorter-than-expected service life and capacity fading after a season or two of deep cycling.
The Mighty Max ML100-12 is a 12-volt, 100 Ah sealed lead acid (SLA) battery. It uses Absorbent Glass Mat (AGM) technology and a valve-regulated design. This lets it be used in enclosed and indoor spaces without leaking or maintenance.
The battery has a heavy-duty calcium-alloy grid built for performance and service life in both float and cyclic applications.
Mighty Max SLA batteries are used in consumer electronics, electric vehicles, engine starters, golf carts, hunting equipment, lawn and garden tools, medical mobility devices, motorcycles, power sports, portable tools, solar systems, toys and hobby items, access control devices, emergency lighting and security systems.
