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Fleet Lithium  |  SKU: BMDC12V200  |  Barcode: 53423635

BlueMax Marine 12V 195Ah LiFePO4 Deep Cycle Battery (Group 27)

Sale price $69900 USD Regular price $89900
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BlueMax Marine 12V 195Ah LiFePO4 Deep Cycle Battery (Group 27)

Planning a battery upgrade for a compatible 12V boat, RV, or off-grid system? BlueMax combines 195Ah rated LiFePO4 capacity with Bluetooth monitoring and Fleet Lithium support. Match the battery to your equipment, expected load, available space, and charging system before ordering.

Why anglers, boaters, and off-grid owners pick BlueMax
  • 195Ah rated capacity — Plan capacity around your equipment load and intended hours of use. Actual runtime varies with your setup and operating conditions.
  • Starting compatibility — The battery label lists dual-purpose use and 1500 cranking amps. Confirm the starting rating required by your engine and its charging-system compatibility with Fleet Lithium before replacing an existing starting battery.
  • Bluetooth monitoring — Check battery information using the compatible app and the supplied instructions.
  • Check the Group 27 fit — Compare the listed dimensions with your tray, mounting space, terminal positions, and cable reach. Confirm installation requirements before treating it as a drop-in replacement.
  • 10-year battery warranty — Review the coverage and terms, with Fleet Lithium support to help you choose the right battery.
Plan your lithium upgrade
  • Size the whole system — Use the listed voltage, capacity, and discharge specifications to check the combined loads you intend to run.
  • Plan usable capacity — Follow the battery's specified operating and discharge limits when estimating runtime for your load.
  • Confirm charging compatibility — Check that your charger and any onboard charging equipment support the selected LiFePO4 battery and its charging requirements.
Installation and operating guidance
  • Follow the supplied battery instructions and your equipment manufacturer's installation requirements.
  • Confirm mounting, wiring, and charging requirements with Fleet Lithium or your installer before use.
  • Use the model-specific documentation for operating limits and protection features.
  • 5 stars: 7 (70%)
  • 4 stars: 2 (20%)
  • 3 stars: 1 (10%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
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Parker A.
Reliable marine power from the BlueMax 200Ah marine battery — BlueMax 200Ah marine battery

The BlueMax 200Ah marine battery has provided steady power for onboard electronics and normal time on the water. It is easier to handle than the older battery and has required very little attention between trips.

Hi Parker, we're thrilled to hear the BlueMax marine battery has been reliable and easy to handle for your boating needs! Thanks for sharing your positive experience.

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Parker R.
Predictable runtime on the water — BlueMax 200Ah marine battery

The BlueMax 200Ah marine battery makes it easier to plan a day out because the power does not fade as abruptly as the old battery. The battery has also stayed clean and maintenance-free between outings.

Hi Parker, we're thrilled to hear that you're enjoying the reliable performance of our BlueMax Marine battery! Thanks for sharing your experience and for choosing Fleet Lithium. Wishing you many more great days on the water!

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Jenna K.
Consistent output throughout the day — BlueMax 200Ah marine battery

The BlueMax 200Ah marine battery has maintained stable voltage for the equipment used during typical outings. There is less concern about performance dropping off suddenly late in the day.

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Caleb B.
Steady power and less battery weight — BlueMax 200Ah marine battery

The BlueMax 200Ah marine battery noticeably reduced the weight carried in the battery area. The boat electronics have operated consistently, and the battery has been easy to recharge.

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Arthur U.
Solid battery after a longer installation — BlueMax 200Ah marine battery

Fitting the BlueMax 200Ah marine battery into the existing battery space took more measuring than expected. Once secured, it has delivered dependable power and reduced the overall battery weight.

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Alex C.
Good performance, more setup guidance would help — BlueMax 200Ah marine battery

The BlueMax 200Ah marine battery has met the power needs of the boat, although additional charger and wiring examples would be useful. After installation, operation has been simple and reliable.

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Luis X.
Good marine upgrade with careful planning — BlueMax 200Ah marine battery

The BlueMax 200Ah marine battery worked well after verifying the charger and cable layout for the boat. The initial setup took some care, but the battery has been reliable since installation.

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Cassandra G.
Strong performance for marine accessories — BlueMax 200Ah marine battery

The BlueMax 200Ah marine battery has handled the usual electronics and accessory loads without noticeable voltage drop. The compact installation and lower maintenance are both significant improvements.

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Thomas E.
A practical replacement for lead-acid — BlueMax 200Ah marine battery

The BlueMax 200Ah marine battery eliminated routine water checks and corrosion cleanup while providing smoother power. The battery compartment is cleaner and easier to inspect now.

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Jacob X.
Easy to manage between trips — BlueMax 200Ah marine battery

The BlueMax 200Ah marine battery charges predictably and does not require the maintenance associated with the old battery. Power has remained steady through normal boating and accessory use.

Pair it right

Make sure this pack matches your motor

Trolling motors pull about one amp per pound of thrust. Enter your motor, hours and throttle to confirm this capacity covers your day on the water.

Size your marine pack

Recommended capacity

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Estimate based on ~1A per lb of thrust at 12V and 80% usable depth of discharge. Message us with your rig for an exact recommendation.

Match your system

Choose the battery voltage, dimensions and discharge rating required by your equipment.

Plan your capacity

Compare the listed amp-hour capacity with your equipment load and intended runtime. Actual runtime varies with use.

Check charging compatibility

Confirm that your charger and onboard charging system support the selected LiFePO4 battery.

10-year battery warranty

See Fleet Lithium warranty details for coverage and terms. Contact our team for help choosing the right battery.

Other Fleet Lithium marine batteries

Shop marine lithium batteries
  • 10-year battery warranty
  • Fleet Lithium support
  • Match voltage and capacity
  • Check charging compatibility
Fleet Lithium BlueMax Marine 12V 195Ah LiFePO4 Deep Cycle Battery (Group 27) lined up on a wooden railing with a boat in the background.

Plan your marine battery upgrade

Match the battery voltage and capacity to your equipment, expected load and available space. Confirm discharge requirements and compatibility with your charger and onboard charging system before ordering. Actual runtime varies with your setup and use. Contact Fleet Lithium for help selecting the right battery.