Bluetooth Enabled

Newport App

IP65 Water Resistant

28.9 LBS

Bluetooth Enabled

Newport App

IP65 Water Resistant

28.9 LBS


Cutting-Edge Monitoring

Introducing the Newport 36V 40Ah Lithium Battery with cutting-edge Bluetooth monitoring capabilities, the perfect power source for your vessel’s outboard motor. Designed for the dedicated angler who seeks top-notch equipment performance, this battery offers unparalleled features to enhance your fishing experience. With lightweight, safe and reliable lithium iron phosphate battery technology and integrated charging circuitry, you can trust its exceptional power output.

Battery App

Introducing the Newport Bluetooth Battery App, the ultimate app designed to provide real-time monitoring and analysis of the battery power for your Lithium Batteries. This app is designed to enhance your battery management experience and ensure optimal performance.

What truly sets the Newport Lithium Batteries apart is their advanced Bluetooth battery power monitoring feature. Stay connected and informed about your battery's status in real-time, right from your smartphone or compatible device using the Newport Battery app available for both iOS and Android. No more guessing or worrying about battery life; fish with absolute confidence and enjoy extended time on the water. The Bluetooth technology ensures that you can effortlessly monitor the remaining battery life, voltage, and other crucial information without leaving your fishing spot. Embrace the convenience and control that Bluetooth monitoring, enabled by the Newport Battery app, brings to your fishing adventures. These batteries also feature a built-in BMS (Battery Management System) to ensure optimal battery performance and longevity. The BMS actively monitors and regulates the battery's functions, protecting it from overcharging, over-discharging, and other potential issues. This intelligent system optimizes the battery's performance, extends its lifespan, and provides you with peace of mind during your fishing expeditions.

Experience uninterrupted power and focus on what matters most — your fishing adventure. The Newport Lithium Batteries deliver maximum power without any interruptions, allowing you to fully immerse yourself in the thrill of the catch. Don't settle for anything less than the best; choose Newport Lithium Batteries as your ultimate power source for fishing equipment. Embrace the future of angling technology and elevate your fishing prowess today.

Key Features

Bluetooth Monitoring

Get real-time battery power updates for ultimate control.


Easy portability for hassle-free transportation.

Long-Lasting Power

Enjoy extended fishing trips without worrying about battery life.

Fast Charging Time

Minimize downtime with quick equipment turnaround.

Reliable Performance

Withstand extreme temperatures for consistent operation.

Lithium Phosphate Chemistry

Advanced stability and reduced risk of thermal runaway or combustion.



With Newport Lithium Batteries, you'll be able to stay out longer, go further, and have a longer life cycle than conventional Lead-Acid marine batteries.

  • 3000+ Charge Cycles
  • Up To 10 Years Shelf Life
  • 90% Usable Capacity
  • Built In Battery Monitoring System

Runtime 36v 40Ah

Up to 40 Hours of Runtime

  • 3% Throttle @40w 39.2Hrs
  • 20% Throttle @260w 6Hrs
  • 50% Throttle @650w 2.4Hrs
  • 100% Throttle @1300w 1.2Hrs


  • Voltage: 36V
  • Capacity: 40Ah
  • Chemistry: LiFePo4
  • Weight: 28.9
  • Dimensions: L12.9”xW6.7”xH8.4”
  • Life Cycles: 3000
  • BMS: 50A
  • Max Charge Voltage: 45V
  • Discharge Cutoff Voltage: 30V
  • Max Charge Current: 50A
  • Max Discharge Current: 50A
  • Peak Current: 150A
  • Operating Temperature: -4 to 140 Degrees
  • BCI Group Size: 31
  • Terminal: M8
Customer Reviews
4.8 Based on 18 Reviews
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Filter Reviews:
John E.
United States United States

Missing In Action

I made an order, did NOT received the 10% off credit, have been unable to get to ANY contact from Newport in the nine days of attempted contact. Chat entries- no reply except canned "We'll get back to you on this", telephone calls time out after five minutes, no answers or call backs. I have officially received 14 programmed email marketing messages, but emails get no real response. Been 9 days since my order.. Now they send a canned email and solicit my feedback.

Andrew P.
Canada Canada

Nice to see how fully they back their products

I recently bought a NT300 and chose the 40AH battery to go with it. The initial battery I got was dead and after a simple, quick chat with the customer service team (Matt S, Gary and Kayleen) I went through the warranty claim process and not long after I was sent a new battery. After charging it up I tested it in the garage hooked up to the motor and all things are good. Just waiting to get out on the water now. Although it was disappointing to be delayed in using my motor, it is more than made up in knowing that NV stands behind its products and at every step of the way I was kept informed of what to expect and the associated timeframe.

Charles R.
United States United States

36V 40AH Outstanding Battery

Paired this with the NK300. I have used it for 3 days so far (1 practice day and 2 tournament days). The lowest the battery got was 84%. It took less than an hour to bring it back up to 100% with the included charger each of those days. Love that it comes with the charger. The app allows you to keep track of the charge while you fish. Great product and highly recommend!

Newport Vessels Newport 36V 40AH Extended Range Lithium (LiFePO4) Outboard Motor Battery Review
Brad H.

So light

It blows my mind how lightweight these batteries are! Very compact as well so you will be able to squeeze it in areas on the kayak that will be out of the way while you’re fishing.

Kenneth C.
United States United States


Great was out all day used 35% of battery.