Epoch Batteries

12V 50Ah Marine Battery - Lithium Trolling Motor Battery

Sale price$299.00 Regular price$499.00
57 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
- Max (4) in Series up to 48V
- Max (4) in Parallel up to 200Ah
- 3500+ Cycle life & Maintenance-free
- 11 Year Manufacturer Warranty

Stock:
In stock

Download Files

User Manual (Updated: 11/30/22)
B1250B MSDS
B1250B UN38.3
Epoch 12V 50Ah Quick Spec Sheet

Roll2 Videos - Battery teardown review

Youtube Video Revews - Mitz @ Level Up Bassin

Youtube video reviews - Lithiumsolar

12V 50AH LITHIUM TROLLING BATTERY

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.

Tech Specs

SKU:

B1250B

Voltage:

12V

Chemistry:

LiFePO4

Charging Voltage Range:

14.0 - 14.6

Max Charge Voltage:

14.6V

Operating Voltage Range:

10.8 - 14.6V

kWh Capacity:

0.64 kWh

Ah Capacity:

50Ah

Cell configuration:

4S

Max Continuous Discharge Amps:

100A

Max Continuous Power Watts:

1280

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)

Weight:

22 (LBS)

Depth Inches:

13.2

Width Inches:

10.2

Height Inches:

10.6

Safety Features:

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

Series | Parallel:

Max (4) in Series up to 48V, Max (4) in Parallel - 4S4P

Designed for 12V Applications

TROLLING MOTORS

FISH FINDERS, FLASHERS & BOATING ACCESSORIES

MARINE APPLICATIONS

SEAKEAPER & MARINE STABILIZATION

ICE FISHING

FISHING BOATS

HOUSEBOATS

MOBILE POWER

DEEP CYCLE APPLICATIONS ONLY, NOT FOR STARTING GASOLINE ENGINES

EPOCH LIFEPO4 TECHNOLOGY

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.

Underwriters Laboratory (UL) – Certified lithium-ion cells

Society of Automotive Engineers (SAE) – Durability and vibration testing

Electrical Testing Laboratories (ETL) – Qualified lithium-ion chemistry

Federal Communications Commission (FCC) – Ensures electromagnetic radiation is below the specified limits

Get the Epoch Batteries app

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

QUESTIONS

PRODUCT REVIEWS

4.8
Rated 4.8 out of 5 stars
Based on 57 reviews
Total 5 star reviews: 49 Total 4 star reviews: 7 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
98%would recommend this product
Customer-uploaded media carousel. Press left and right arrows to navigate. Press space or enter to open more details.
Slide 1 selected
Powered by OkendoOpen Okendo Reviews in a new window
57 reviews
  • Gavin R.
    Verified Buyer
    Rated 3 out of 5 stars
    2 weeks ago
    Big! Check the size

    Great build quality and concept. My fault for not checking dimensions. For a small capacity it’s huge casing. Doesn’t for physically where I need it. Reached out to customer service for return option and no response to date (been two weeks)

  • JUSTIN G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    This battery is fantastic

    I ordered this battery on 03-21-24, got it on 03-29-24. Charged it to full and have used it for 3 all day trips fishing running a Garmin UHD 93SV. The battery sits at 64% right now. It'll likely last another 4-6 trips before I need to charge it again. I plan to buy a Garmin Force trolling motor this year, when I do, without doubt I'll be getting an Epoch 36V 100 Ah battery to power it. The only issue I've had at all is they send the email asking you to review the battery immediately and every few days thereafter. STOP THAT EPOCH, give people a chance to actually use your amazing product for a month or so, THEN send the email asking for a review.

  • James M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    Brilliant design

    I looked my first 100ah trolling motor battery so much I got this for fish finder and lighting.

    With the splash resistance, integrated Bluetooth, and especially the on-off switch I don't need a bunch of other components.

    The on-off is especially helpful, just like a matter switch but better because the terminals are not "live" when but in use. I see this as a safety feature.

  • Cory C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Review

    Works perfectly and is super light weight for the size

  • Damian P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Great Battery Full Power

    Finally I have a battery that doesn’t trip when my trolling motor is wide open for more than 1 minute. I ran my trolling motor for 10 minutes at full throttle drawing 40A continuous with no problem.

Reviews LoadedReviews Added