Epoch Batteries

36V 50Ah | Heated & Bluetooth | LiFePO4 Battery

Sale price$1,099.00 Regular price$1,299.00
Save $200.00
5 reviews

- LiFePO4 Chemistry - Deep Cycle Battery
- HEATED - Internal heating allows for charging in sub-zero conditions
- BLUETOOTH - iOS and Android Apps
- IP67 Rated, Dust and WATERPROOF
- Built-in Smart Battery Management System (BMS)
- Over charge and over discharge protection
- Over current and short circuit protection
- High & low temperature disconnects
- 3500+ Cycle life & Maintenance-free
- 11 Year Manufacturer Warranty

In stock


The Epoch marine battery is engineered to provide consistent power output and reliable performance for extended periods of use, utilizing lifepo4 technology. Its IP67 rated construction and internal heating system allow for optimal performance in harsh environments. The on-board battery management system includes a variety of safety and performance enhancements, as well as Bluetooth connectivity. By pairing the battery with the Epoch Batteries app, available on the App Store and Google Play Store, users can access real-time monitoring, product manuals, and other useful information. Additionally, our marine batteries utilize LiFePO4 chemistry to ensure maximum stability, fast charging, reduced weight, constant voltage, increased cycle life, and maintenance-free usage.

Roll2 Videos - Battery teardown review

Tech Specs







Charging Voltage Range:

42.0 - 43.8V

Max Charge Voltage:


Operating Voltage Range:

30 - 43.8V

kWh Capacity:

1.92 kWh

Ah Capacity:


Cell configuration:


Max Continuous Discharge Amps:


Max Continuous Power Watts:


Max Discharge Peak Current Amps:

150A (30 Seconds)

Max Charge Current Amps:

150A (10 Seconds)

Charge Temp Range:

-20°C (-4°F) / 55°C (131°F) (with heating)

Discharge Temp Range:

-20°C (-4°F) / 60°C (140°F)

Optimal Discharge Temp Range:

15°C (59°F) / 35°C (95°F)

Storage Temp:

0°C (32°F) / 35°C (95°F) (Max 12 Months)


53 (LBS)

Depth Inches:


Width Inches:


Height Inches:


Safety Features:

BMS (Battery Management System) Over Voltage, Under Voltage, Over-Current, Short Circuit, Over Temperature, Under Temperature

Series | Parallel:

Max (2) in Series | Max (4) in Parallel

Designed for 36V Applications











At Epoch Batteries, we are proud to offer our customers the highest quality lithium iron phosphate (LiFePO4) batteries for marine applications. Our batteries have been specifically designed and engineered to meet the demanding needs of the marine industry, providing superior performance, safety, and longevity.

One of the key advantages of our LiFePO4 batteries is their exceptional safety. Our batteries have built-in protection circuits that prevent overcharging and over-discharging, greatly reducing the risk of fires or explosions. Additionally, our batteries have a high thermal stability, which means they can withstand high temperatures without catching fire. This makes them the perfect choice for marine applications where a high level of safety is required.

Another advantage of our LiFePO4 batteries is their long lifespan. Our batteries have a cycle life of up to 3,500 cycles at 80% depth of discharge, which is much longer than traditional lead-acid batteries and other lithium-ion batteries. This means that they need to be replaced less often, saving our customers money and time in the long run.

Our LiFePO4 batteries also have a higher energy density than lead-acid batteries, which means they can store more energy in a smaller space. This is particularly useful for marine applications where space is often limited. They also have a lower weight than lead-acid batteries, which makes them easier to handle and install.

Our LiFePO4 batteries also have a much wider operating temperature range than lead-acid batteries, which means they can be used in a variety of different environments. They can also be discharged to a much lower level than lead-acid batteries without damaging them, which means they can be used more efficiently.

Our LiFePO4 batteries also have a faster charging time than lead-acid batteries, which means they can be recharged more quickly and can be used more frequently. They also have a low self-discharge rate, which means they can be stored for longer periods of time without losing their charge. This is particularly useful for marine applications where the battery may not be used for long periods of time.

At Epoch Batteries, we are committed to providing our customers with the best possible products and services. We are confident that our LiFePO4 batteries are the best choice for marine applications and stand behind them with a comprehensive warranty.

Get the Epoch Batteries app

Monitor battery data in real-time, view user manuals and more.



Rated 4.8 out of 5 stars
Based on 5 reviews
Total 5 star reviews: 4 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
5 reviews
  • Casey H.
    Verified Buyer
    9 seconds ago
    Rated 5 out of 5 stars
    36v Product Test -Electric Tournament Setting

    I received my battery in 2 days after I ordered it, which was completely unexpected and awesome. It arrived the night before my E tournament, so I decided to run it hard to see if it would meet my needs. I fish out of a 16ft aluminum, with front and back decks very similar to a tracker aluminum minus the steering wheel and gas motor. I fish with a partner and we do a lot of running around with the garmin force 36v trolling motor and a 80lb trust 24v trolling motor in the back. Our current setup runs about 5.5mph wide open. To conserve juice we usually run both motors at 75% throttle when making long runs.

    When testing this battery we wanted to see if it would last a full day of hard fishing, so we decided to run wide open every time we made a move. We were able to get just over 6mph at full throttle. The app was amazing at showing run times and amp draw down. While looking at the app I was able to see I was pulling 56 amps per hr at full speed, and at 100% battery life had just under an hr of wide open run time. We ran a little over 5 miles on the battery between 7am and 1:30pm. We hit 0% once we got to our last spot, I thought it was cool that when I reduced the throttle to 2 and was drawing about 5 or 6 amps (can’t remember specifics) just fishing down the bank the app told me I still had about an hr run time left at this speed. Now keep in mind the battery read 0% but the trolling motor battery indicator was still green. The tournament ended at 3pm so I switched back to…

  • Bruce J.
    Verified Buyer
    2 days ago
    Rated 5 out of 5 stars
    Epoch 36V 50ah

    I got one hoping it might be enough for a full day of trolling on my boat. It came close! It was down to 1 bar after 6 hrs of trolling (3 of which were pretty windy). I knew getting the 50ah compared to the 100ah I might run into this but I've heard it's better to have 2 batteries compared to one bigger one. So I'll be getting another 50ah and I believe that will be plenty for anything I could do in a day. Great battery. Nice app to check in on how the battery is doing. If you are thinking of purchasing one make sure it will fit where your old batteries were! I had to do a little modification to get it to fit.

  • Jim A.
    Verified Buyer
    1 month ago
    Rated 5 out of 5 stars
    Jim Ambos

    Working great. Great deal mow power than old 6 volt batteries! I like the shut off feature on the battery.

  • LEROY M.
    Verified Buyer
    1 month ago
    Rated 5 out of 5 stars
    So far very good

    Simplified my TM setup. Definitely save me on weigh going from 3 Group 31M Duracell AGM’s. Run 36v Ultrex 112 all day in heavy wind and still have 45 to 50% capacity left. Coupled with Epoch’s 36v charger and I’m back to 100% within an 1-1.5hrs !! App is very helpful and I actually like the off feature so you don’t leak charge while stored.

  • James W.
    Verified Buyer
    3 months ago
    Rated 4 out of 5 stars
    2019 Blazer Bay 2420

    Haven't actually installed it yet, I am re-wiring everything in my console. However this battery seems to be very well made, it almost has an "industrial feel" to it. The app and the features of the app/battery are phenomenal. I do not expect to be disappointed by the performance, but if I am I will update this review! If it meets the expectations I will bump to 5 stars.

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