Skip to content
  1. Free Shipping on All Orders
  2. Industry Leading 12 Year Warranty

Expert Support - Chat With Us

  1. MORE POWER- Lithium Pros' batteries hold a higher voltage while loaded and recharge faster.
  2. LIGHTER WEIGHT - Some models are so light they float, making them ideal for racing and marine use.
  3. FASTER RECHARGING - Lithium Pros’ lithium-ion batteries accept charge current up to five times faster than lead-acid batteries.
  4. LONGER BATTERY LIFE - Lithium Pros’ LiFePO4 batteries provide over five times the cycle life compared to standard lead-acid batteries
  5. MORE EFFICIENT - Lithium Pros’ batteries are 96% efficient at converting input energy into stored energy versus approximately 75% for lead acid.
N3250-48D 51.2V 50Ah Lithium Ion Trolling Battery with NMEA 2000 - Lithium Pros

N3250-48D 51.2V 50Ah Lithium Ion Trolling Battery with NMEA 2000

Sale price $2,399.00

Shipping calculated at checkout

Style

Low stock

Why Choose Lithium Pros?

  • Consumer Direct Support
  • Fully-Trained Dealerbase
  • Industry Leading Warranty
  • More Efficient Than Lead Acid
  • Trusted By Anglers Everywhere

N3250-48D 51.2V 50Ah Lithium Ion Trolling Battery

  • Replace four group 27 AGM batteries with this ONE battery!
  • NMEA 2000 connectivity
  • 51.2V
  • 50Ah (2,560 Whr)
  • 120 Reserve Minutes 
  • BCI Group GC12 size, (12.88″L x 7.13″ W x 10.50″ T)
  • 46.0 lbs

The N3250-48D is an advanced lithium ion battery made for 48V marine electric motors like the Elco EP-9.9, EP-14, EP-20 and others. It includes the embedded BM-21 battery monitor.  The result is a 46 lb Lithium Pros 51.2V 50Ah Lithium Ion Battery that is a perfect fit for electric only boating.  It is also the world's first series of lithium-ion batteries to be NMEA 2000 certified.

When you demand in the ultimate in equipment for your boat with the highest level of communication, the N series with NMEA 2000 connectivity is for you.  The N3250-48D is perfect for demanding freshwater tournament anglers using 48V electric outboards on restricted lakes and reservoirs. 

There is no comparison to lead acid batteries when it comes to performance in a electric jonboat or other boats made for electric boating.  It only 1/5 of the weight of the batteries it replaces!  A lighter boat is faster and more fuel efficient and can get into more places.  Catch fish where your competitors can’t.

BM-21 Embedded Battery Monitor

The BM-21 Embedded battery monitor is NMEA 2000 certified and features a micro port on the battery.  It is directly addressable on the NMEA 2000 network and it is “plug and play” with all NMEA 2000 multi-function displays. The BM-21 reports all required PGNs as well as the three standard battery related PGNs:  127506, 127508, 127513, as well as alert PGN 126983. Simply select the individual battery from the NMEA 2000 device list and configure it.**

This puts the individual battery voltage, current, time remaining, state of charge, and temperature all on the network. In addition, the BM-21 also records warnings and alerts events with a real time/date stamp.  Also, cumulative lifetime amp-hours are recorded.  This information is available on the optional OLED display.  (N series batteries with a "D" part number suffix include this display. The N3250-48D includes the OLED display.) 

"The ONE Battery you need"

This battery features 120 reserve minutes, or enough power for extended trolling in one area from daylight to dark.^ Up to four of these can be connected in parallel for increased capacity.  We recommend a minimum of two in parallel.  Series connection for increased voltage is prohibited.  (Not for systems over 51.2V.)

Installation is a snap and you are ready to go with a Lithium Pros battery that is “strong all day long.”

NOTE:  A 51.2V LiFePO4 compatible battery charger is required.

*Group 27 marine battery assumed to be 150RC and 50 lbs.

** Check the MFD's documentation to insure it recognizes at least PGNs 127506 and 127508 for minimum compatibility.

^Assumes 50% setting on a Minn Kota motor and 50% duty cycle (usage) on the motor. Higher settings or a higher duty cycle (more usage, such as in wind or water current) will reduce this time.

12 Year Warranty

All Lithium Pros products carry a 60 day risk free guarantee. If you are not satisfied with your purchase for any reason, you can return it to where it was purchased (with proof of purchase) for an exchange or full refund*. We have full confidence in our products, and are sure you will too!

Click here to review out warranty policy.

Why Lithium Pros?

MORE POWER

Power is the measure of the volume at which energy can be delivered.  Lithium Pros’ batteries have always been high power. 

Lithium Pros' batteries hold a higher voltage while loaded and recharge faster. That means a hotter ignition, faster starts, and more watts for your accessories.

LIGHTER WEIGHT

Lithium Pros' batteries are three times the energy density of comparable lead acid batteries. High energy means you can do more in the same footprint and do it with less weight.

The result is a lighter battery. In fact, some models are so light they float, making them ideal for racing and marine use.

FASTER RECHARGING

Lithium Pros’ lithium-ion batteries accept charge current up to five times faster than lead-acid batteries, and in many cases Lithium Pros’ batteries recharge in as little as an hour.

LONGER BATTERY LIFE

Lithium Pros’ LiFePO4 batteries provide over five times the cycle life at 80% DoD (depth of discharge) compared to standard lead-acid batteries, and easily handles 2,500 cycles and more.