top of page

Feather-Lite batteries is proud to offer a marine series batteries customer have asked for. This battery is designed for customers with 12-volt trolling motors looking to get the most trolling time out of a single battery. This battery offers 400-amp hours of comparable lead acid capacity.


SKU: FL-M12400
  • Dimensions:

    Length 20.5” (521mm)

    Width 9.37” (238mm)

    Height 8.59 (218mm) 

    Weight:  56 LBS (25.5kg)

    Polarity Configuration: Left side Positive


    Battery Energy Specifications:


                   Nominal 13.2

                   Charged 14.4


    Capacity: 400 Ah (Lead acid equivalent/ PbEq)

                    200 Lithium amp hours

                    480 minutes of Reserve Capacity


    Run times may change due to weather conditions, trolling speed, water current and other unknown factors.



    Recommended Charger: FL-BC21225

    Other Charger options: FLBC1215 (These options are slower charger times)

  • FL-M12400 is a 12V 400ah designed marine storage/ trolling battery is the top of the line 12-volt battery on the market. This battery is 2nd to none, simply the best choice for any 12V marine application on the market, and it was designed to maximize run time off battery system to minimize need for generator use or docking power.This is the optimal battery for all 12v & 24v battery system operators looking to reduce boat weight to be increase speed to get your preferred spot, increase haul capacity, and increase run time without utlizing a genset.

    Made with the safest, highest quality products available and encased in a plastic case and sealed for waterproofing, may not be exact size replacement for what you have, but that’s because we build Feather-Lite batteries to be compact not wasting any space.

    The FL-M12400 weighs in at 55.5 lbs. but compared to the competition this battery offers more weight reduction, and more capacity. Its small stature brings it in at 19.1” long 9.37” wide 8.59” tall makes it have the smallest footprint of any battery in the same performance category. With 400-amp hours of capacity, you would need 2 of every other battery on the market minimum to match that power and surpass our capacity, some companies you may need 3 or 4 of them.

    We designed and built these batteries from the cell design out, coping nothing on the market, trying to fit into no existing mold, just built the smallest lightest most powerful battery the customers needed and wanted. Feather-Lite Batteries can be mounted in any configuration, orientation, or location, can be wired in parallel or series configurations. Unlike sealed lead acid or AGM batteries the power and performance you get used to at the start, is what you can expect up to the end of the battery’s life cycle. You can also expect 4 times longer life expectancy than batteries of the same power specs in those technologies.

bottom of page