The FL-M1290 is the first in the new line of Marine series batteries. Feather-Lite Batteries Marine series batteries are specifically designed for your daily driver in mind. Whether its driven every day or your weekend toy, these series of batteries are what you want. With these batteries there is 1/29 the month loss of power compared to a conventional Lead-acid/AGM battery so no worries about being in the middle of the lake on your cruise, or after fishing and the dreaded "CLICK...CLICK" of the dead battery. These batteries carry FLB Protection circuitry onboard to optimize charging and dis-charging with your alternator.


  • Dimensions:

    Length 7.625” (193.7mm)

    Width 5.125” (130.2mm)

    Height 7.250” (184.15mm)

    Weight: 9.8 LBS (3.5kg)

    Polarity Configuration: Left side Positive


    Battery Energy Specifications:



         Nominal 12.8

         Charged 14.4


    Capacity: 90 Ah (Lead acid equivalent/ PbEq)

                    45 Lithium amp hours

                    198 minutes of Reserve Capacity


    Cranking amps: 900 CCA(Cold Cranking Amps 

                              1125 @ 75 degrees Fahrenheit (for 15 seconds)

                              3300 Pulse Cranking amps


    Recommended Charger: FL-BC1225 If used in something requiring faster Chaarges.

    Other Charger options: FL-BC1210 if used in  in a total loss system that has longer charge times, FL-BC126 (These options are slower charger times)

  • FL-M1290 is a 12V 90ah designed racing battery is the top of the line 12-volt replacement battery on the market. This battery is 2nd to none, simply one of the best choice for every 12V marine application on the market, and it was designed with FLB circuitry protection, for use with everyday alternators.


    Made with the safest, highest quality products available and encased in a high impact resistant plastic case, 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-M1290 weighs in at 9.8 lbs. but compared to the competition this battery offers more cranking amps, more pulse cranking amps, and a lot more capacity. Its small stature brings it in at 7.625” long 5.125” wide 7.250” tall makes it slightly small