Lithium Pros M31-24CK 24V 75Ah LiFePO4 Marine Trolling Battery & DC Charger Kit

The Lithium Pros M31-24CK is a complete 24V lithium-ion marine power kit designed for tournament and recreational anglers running 24V trolling motors. This kit pairs the M3175-24 — a 25.6V / 75Ah LiFePO4 (lithium iron phosphate) deep-cycle trolling battery — with the M1224 onboard DC charger, giving you everything needed to replace two conventional Group 31 lead-acid batteries with a single, dramatically lighter solution.

Key Features:

• 25.6V / 75Ah LiFePO4 chemistry — stable, safe lithium iron phosphate cells for reliable deep-cycle performance
• BCI Group 31 form factor — fits standard Group 31 marine battery trays with no modifications required
• Bluetooth connectivity — monitor battery state via the Lithium Pros app
• 138 reserve minutes — enough capacity to troll from daylight to dark on a single charge
• Lightweight design — approximately 31 lbs, replacing two lead-acid batteries that can weigh 120+ lbs combined
• M1224 onboard DC charger included — automatically recharges the trolling battery from the outboard engine's charging system underway
• Transferrable 7-year warranty — industry-leading coverage from a USA-based manufacturer

The M3175-24 battery measures 13″ L × 6.81″ W × 8.43″ H, matching a standard Group 31 footprint for straightforward drop-in installation. The included M1224 DC charger taps into the outboard's alternator output to keep the lithium battery topped off while running, extending on-water range and eliminating the need to monitor battery levels throughout the day. A dedicated 25.6V LiFePO4-compatible shore charger is required for shore-side charging (sold separately).

Ideal for bass boats, flats boats, and saltwater tournament vessels where every pound matters, the M31-24CK delivers all-day trolling power in a package that dramatically reduces weight and improves boat performance.