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Fleet Lithium  |  SKU: BMDC12V200

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

Sale price $62900 USD Regular price $69900
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10-Year Warranty US-Based Support Fast Free Shipping 30-Day Guarantee Safe Chemistry

Features

  • Advanced Battery Management System (BMS)
  • Bluetooth Communication with BT 5.0
  • Real-time status monitoring (via app or display)

5 Year Warranty

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

Stay on the water longer, run every accessory without worry, and crank your engine when you need to — all from a single Group 27 battery. The BlueMax 12V 195Ah delivers true deep-cycle endurance for trolling, house power, RV, and off-grid solar, plus 1500 CCA when it's time to start the motor. Bluetooth monitoring keeps real-time state-of-charge in your pocket.

Why anglers, boaters, and off-grid owners pick BlueMax
  • All-day runtime — 195Ah usable capacity means longer trolling runs, more nights at anchor, and fewer trips to the charger.
  • Engine starting + deep cycle in one — 1500 CCA hybrid design eliminates the need for a separate starting battery on most rigs.
  • Bluetooth in your pocket — Monitor voltage, current, temperature, and remaining capacity from your phone in real time.
  • Active cell balancing — Keeps every cell in lockstep for maximum usable capacity and longer pack life.
  • Drop-in Group 27 fit — Standard BCI Group 27 footprint slides into existing trays with no fabrication.
Why this beats lead acid
  • ~70% lighter than a comparable lead-acid Group 27 (27 lb vs. ~60+ lb).
  • 5,000+ cycles at 80% depth of discharge vs. 300–500 cycles for lead acid.
  • Use 100% of rated capacity — no need to stop at 50% to protect the battery.
  • Flat voltage curve — full power output until nearly empty; no slow trolling-motor fade.
  • No off-gassing, no acid, no maintenance — safe for enclosed cabins, lockers, and RV bays.
Built-in NexGen BMS protection
  • Overcharge / over-discharge cutoff
  • Short-circuit and reverse-polarity protection
  • High and low temperature cutoff

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

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.

100% usable capacity

A 100Ah lead-acid bank gives you 50Ah before it sags. A Fleet Lithium 105Ah pack delivers the full rating, every trip.

Half the weight

Drop 60+ lbs off the transom versus flooded lead-acid and get it back in hull speed and range.

Flat voltage all day

Lithium holds voltage to the end of the charge, so your motor pulls the same thrust on the last hour as the first.

5,000+ cycles, 10-year warranty

Sealed, maintenance-free and IP-rated for the marine environment. No watering, no acid, no off-season top-ups.

Other Fleet Lithium marine batteries

Shop marine lithium batteries
  • 5,000+ cycle life
  • 10-year warranty
  • 300A continuous discharge
  • Sealed & maintenance-free
  • Ships from the USA
Fleet Lithium BlueMax Marine 12V 195Ah LiFePO4 Deep Cycle Battery (Group 27) lined up on a wooden railing with a boat in the background.

Marine Power Without Limits.

Stay on the water longer, run every accessory without worry. BlueMax Marine batteries deliver true dual-purpose power—deep-cycle endurance and reliable engine starting in one lightweight, maintenance-free lithium package built to keep you on the water longer.