36V 100Ah LiFePO4 Lithium Battery (3.84kWh)

5.0
(96 Reviews)
In Stock
SKU B36100A-A
€1,678.95
IP67BluetoothHeated
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Features at a glance

  • IP67
    Waterproof

    Dustproof and submersible to 1 m for 30 minutes.

  • 3,500+
    Cycle life

    Over 9 years at one full cycle a day.

  • iOS + Android
    Bluetooth app

    Charge, voltage and temperature on your phone in the Epoch Li-Ion app.

  • Advanced BMS
    Protection

    Guards against overcharge, over-discharge, overcurrent and short circuit.

  • Self-heating
    Cold weather

    Warms its own cells so it can charge below freezing.

  • LiFePO4
    Safest chemistry

    Stable under extreme conditions. 11-year warranty.

Designed & engineered in the USAVeteran owned

  • 36V 100Ah LiFePO4 Lithium Battery (3.84kWh): Premium deep cycle chemistry delivering massive, fade-free energy—perfect for trolling motors, golf carts, and off-grid setups.
  • HEATED For Extreme Climates: Built-in internal heating allows for safe, automatic charging even in harsh, sub-zero conditions.
  • BLUETOOTH App Connectivity: Monitor real-time battery health, capacity, and Recommended Charging Settings directly from your iOS or Android device.
  • IP67 Rated & WATERPROOF: Fully sealed, dust-tight construction rigorously tested to endure harsh marine and outdoor environments.
  • Advanced Smart BMS: Fully integrated Battery Management System automatically protects your investment from over-charging, over-discharging, short circuits, and extreme high/low temperatures.
  • Optimized Weights & Dimensions: Weighs just 75 lbs, providing an incredible weight reduction for your vessel or cart compared to heavy lead-acid configurations.
  • Expandable Specifications: Easily connect up to 4 batteries in parallel to build a massive 400Ah power bank.
  • 3,500+ Cycle Life & Maintenance-Free: Enjoy true drop-in reliability backed by an industry-leading 11-Year Manufacturer Warranty.

Epoch Li-Ion App

Epoch Li-Ion App
Apple App StoreGoogle Play Store

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36V 100Ah LiFePO4 Lithium Battery (3.84kWh)
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Downloadable resources

Material Safety Data Sheet
Data SheetQuick Spec Sheet
Safety Data SheetSDS

Applications & use cases

36V trolling motor battery

Epoch 36V 100Ah Marine Lithium Battery: The Ultimate Trolling Motor Powerhouse

A 36V 100Ah marine lithium battery with 3.84kWh of LiFePO4 power for serious trolling motor runtime.

The Epoch 36V 100Ah Marine Lithium Battery is a high-capacity 36V trolling motor battery, 36V lithium battery for boat upgrades, and deep cycle marine battery 36V solution for anglers who want long runtime without managing three separate 12V lead-acid batteries. Built with 3.84kWh lithium storage, IP67 waterproof protection, internal self-heating, Bluetooth battery monitoring, and an advanced BMS, it is engineered to keep compatible 36V trolling motors running from dawn until dusk.

36V
System voltage
100Ah
Capacity
3.84kWh
Stored energy
120A
Continuous output
IP67
Waterproof
75 lb
Approx. weight

Built to go further

11-year warranty Manufacturer coverage
U.S.-based support Help when you need it
Veteran owned Mission-focused brand
Designed and engineered U.S. product design
Advanced BMS Built-in protection
LiFePO4 safety Stable lithium chemistry

Drop the Weight: Replace Three Heavy 12V Batteries

One lightweight 36V LiFePO4 drop-in replacement for a traditional three-battery trolling motor bank.

Swapping a daisy-chain of three 12V lead-acid batteries for one 36V 100Ah marine lithium battery simplifies your boat’s electrical layout, opens up valuable compartment space, and removes substantial weight from the hull. That means less clutter, fewer interconnect cables, and a cleaner installation for modern fishing boats.

This battery measures 20 in L × 10.25 in W × 11 in H and weighs approximately 75 lb. Before installation, confirm your tray space, hold-down system, cable routing, terminal clearance, charger profile, and trolling motor manufacturer requirements.

Power Your 36V Trolling Motor All Day

3.84kWh lithium storage for Minn Kota, Garmin, Lowrance, and other compatible 36V trolling motor systems.

With 100Ah of capacity, 3.84kWh stored energy, and 120A continuous discharge capability, this 36V deep cycle lithium battery is built for anglers who spend long days on the water. LiFePO4 chemistry delivers a flatter discharge curve than lead-acid, helping your trolling motor maintain stronger, more consistent thrust through most of the battery’s usable capacity.

Use it with compatible 36V trolling motors from brands such as Minn Kota, Garmin, and Lowrance when voltage, current draw, fuse protection, charger profile, and manufacturer battery requirements match. For extended runtime, matched batteries may be wired in parallel up to Epoch’s stated limit of four batteries.

Built-in heating for all-season fishing

A heated marine lithium battery for cold-weather charging support.

Internal self-heating helps warm the cells before charging in freezing conditions, supporting safe charging for early spring, late fall, and cold-morning fishing trips. The advanced BMS also includes low-temperature charge protection to help protect the internal cells.

IP67 waterproof and rugged marine construction

Fully dustproof and sealed for harsh marine environments.

The IP67 waterproof 36V battery enclosure is designed to protect the internal BMS and cells against dust, spray, heavy rain, and wet boat compartments. It is rated for temporary immersion up to 1 meter for 30 minutes, but should still be mounted securely and protected from long-term submersion or pressure washing.

Smart Bluetooth app monitoring

A Bluetooth trolling motor battery monitor in your pocket.

Built-in Bluetooth connects to the Epoch app so you can check state of charge, voltage, current, cycle data, and battery status from your smartphone. It helps eliminate battery guesswork when you are miles from the ramp and need to know exactly how much power remains.

Compatible applications

Marine trolling motors, fishing boats, and compatible 36V deep-cycle power systems.

  • ✓ 36V trolling motor systems where voltage and current requirements match.
  • ✓ Minn Kota, Garmin, Lowrance, and other compatible 36V marine trolling motor platforms.
  • ✓ Bass boats, fishing boats, pontoons, skiffs, aluminum boats, bay boats, and compatible marine setups.
  • ✓ Replacement for three 12V lead-acid trolling motor batteries in compatible 36V banks.
  • ✓ Deep cycle marine battery 36V systems that need high usable energy and stable voltage output.
  • ✓ Cold-weather fishing setups where a heated marine lithium battery provides charging support.
  • ✓ Parallel battery banks up to four matched batteries for expanded amp-hour capacity.
  • ✓ Solar, off-grid, and backup energy systems built around compatible 36V charging and inverter equipment.
  • ✓ Boat installations where the 20 in × 10.25 in × 11 in case and M8 terminals fit properly.

Battery features

Marine lithium performance with heating, Bluetooth visibility, and IP67 protection.

36V trolling motor batterySingle-battery 36V platform for compatible marine trolling motor systems.
36V 100Ah marine lithium batteryDelivers 3.84kWh lithium storage for extended runtime on the water.
LiFePO4 drop-in replacementReplaces a three-battery 12V lead-acid bank in compatible 36V trolling motor installations.
120A continuous dischargeSupports demanding 36V loads while maintaining efficient lithium output.
200A peak dischargeDelivers short-duration output for up to 60 seconds when system demands increase.
100A continuous chargeAccepts high charging current when paired with compatible 36V LiFePO4 charging equipment.
150A peak chargeSupports up to 150A charge current for short 10-second intervals.
Internal self-heatingBuilt-in heating helps support charging in freezing and sub-zero conditions.
Bluetooth battery monitorConnect to the Epoch app to review state of charge, voltage, current, cycle data, and battery status.
IP67 waterproof ratingFully dustproof and rated for temporary immersion up to 1 meter for 30 minutes.
Advanced BMSHelps protect against overcharge, over-discharge, over-current, short circuit, and temperature extremes.
3500+ cycle lifeLong-lasting LiFePO4 performance for demanding marine and deep-cycle applications.

Compatible chargers and accessories

Use dedicated 36V LiFePO4 charging equipment.

✓ Epoch 36V 15A LiFePO4 battery charger.
✓ Programmable 36V LiFePO4-compatible marine chargers.
✓ Properly sized marine cabling, fusing, hold-downs, and terminal hardware.

Specifications

Full technical details, dimensions, weight, current ratings, and 36V charging settings.

General
Brand Epoch Batteries
Model / SKU B36100A-A
Data-sheet platform B36100A
Battery type Heated Bluetooth deep-cycle LiFePO4 battery
Primary application 36V marine trolling motor and compatible 36V deep-cycle systems
Chemistry LiFePO4 / Lithium iron phosphate
Cell type Prismatic LiFePO4
Cell configuration 12S
Bluetooth Yes — compatible with iOS and Android apps
Internal self-heating Yes
Cycle life 3500+ cycles
Voltage and capacity
Voltage class 36V
Nominal voltage 38.4V
Nominal capacity 100Ah
Energy stored 3.84kWh
Maximum charge voltage 43.8V
Operating voltage range 30.0V – 43.8V
Low-temperature charge protection Yes
Current ratings
Max continuous discharge 120A
Max continuous charge current 100A
Max charge current 150A @ 10 seconds
Max discharge peak current 200A @ 60 seconds
Series connections Max 1 battery in series
Parallel connections Max 4 batteries in parallel, plug and play
Maximum parallel capacity Up to 400Ah with four matched batteries
Temperature
Charge temperature range -20°C to 55°C / -4°F to 131°F, with heating
Battery charge temperature range 0°C to 55°C / 32°F to 131°F
Discharge temperature range -20°C to 60°C / -4°F to 140°F
Recommended storage temperature 0°C to 35°C / 32°F to 95°F
Low-temperature charge protection Yes
Dimensions and weight
Length 20 in / approx. 50.8 cm
Width 10.25 in / approx. 26.04 cm
Height 11 in / approx. 27.94 cm
Overall dimensions 20 in L × 10.25 in W × 11 in H
Weight 75 lb / approx. 34.02 kg
Mechanical
Case material ABS and PC blend, UL94-V0 flame rating
Enclosure protection IP67
Terminal type M8 female
Recommended charging settings
Maximum continuous charge current 100A
Bulk / absorption voltage 42.6V – 43.2V
Absorption end condition Stop when charge current is ≤ C/20 or 15 minutes max
Float voltage Disabled preferred, or 40.0V – 40.8V
Re-bulk voltage 39.6V
Temperature compensation 0mV/°C / none
Equalization Disabled
BMS high-voltage cutoff 43.8V
SoC recalibration voltage 43.8V
BMS protection and compliance
Built-in BMS Yes — overcharge, over-discharge, over-current, short-circuit, and temperature protection
Cell certifications UL 1642 cells, UL 9540A cells
Compliance IEC 62619:2022, CE, RoHS
Shipping classification UN 38.3, Class 9
Warranty 11-year manufacturer warranty

IP67 waterproof marine protection

Built for spray, rain, wet decks, and harsh boat environments.

The IP67-rated enclosure is fully dustproof and rated for temporary immersion up to 1 meter for 30 minutes. It is a strong choice for marine trolling motor installations where rain, salt spray, vibration, and moisture are part of normal use. For best results, keep terminals clean and protected, secure the battery properly, and avoid long-term submersion or pressure washing.

Why upgrade to Epoch LiFePO4?

More usable energy. Less maintenance. More confidence on the water.

LiFePO4 technology provides stable voltage output, fast charging capability, long service life, and maintenance-free operation. Compared with traditional lead-acid trolling motor banks, this lightweight 36V battery simplifies installation while delivering efficient usable energy, smart monitoring, and rugged marine protection.

Fitment and charging note

Verify your boat, charger, and trolling motor before installation.

Always confirm compartment dimensions, cable clearance, M8 terminal compatibility, charger compatibility, fuse sizing, trolling motor current requirements, and manufacturer guidance before installation. Use a lithium-compatible 36V charger or programmable charging system set to Epoch’s recommended parameters. For parallel banks, use matched batteries of the same model, age, capacity, and state of charge.

Frequently asked questions

36V 100Ah Marine Lithium Battery FAQs

Common questions about trolling motor runtime, boat fitment, charging, waterproofing, Bluetooth monitoring, and parallel battery banks.

Is 100Ah enough to run a 36V trolling motor all day?

Yes. For most tournament and weekend anglers, this 36V 100Ah marine lithium battery provides serious all-day trolling motor runtime. Because LiFePO4 delivers a flatter discharge curve than lead-acid, your 36V trolling motor can maintain more consistent thrust through most of the battery’s usable capacity. Runtime varies with thrust setting, boat weight, wind, current, motor efficiency, and how aggressively the motor is used.

Can I use my existing 12V marine charger to charge this battery?

No. This is a 36V lithium battery for boat and trolling motor systems, so it must be charged with a dedicated 36V LiFePO4-compatible marine charger or a programmable lithium charger. A 12V charger or older lead-acid charger will not properly charge the battery and may cause the BMS to protect the cells by shutting down charge acceptance.

Will this 36V battery fit in my boat's current battery compartment?

This battery is significantly more compact than a three-battery 12V lead-acid bank, but you should measure your compartment before ordering. The case measures 20 in L × 10.25 in W × 11 in H and weighs approximately 75 lb. Confirm tray space, hold-down straps, terminal clearance, cable routing, ventilation, and charger compatibility before installation.

Can I wire two of these 36V 100Ah batteries together for even more power?

Yes. You can wire matched 36V 100Ah batteries in parallel to increase capacity. For example, two batteries in parallel create a 36V 200Ah bank for extended runtime. Do not wire this model in series to increase voltage beyond the battery’s 36V class rating.

Does this replace three 12V trolling motor batteries?

Yes, in compatible 36V systems this single LiFePO4 drop-in replacement can replace a traditional bank of three 12V lead-acid trolling motor batteries. It simplifies wiring, frees up compartment space, and can significantly reduce boat weight. Always confirm your trolling motor voltage, charger profile, cable size, fuse protection, and manufacturer requirements before replacing an existing bank.

Will it work with Minn Kota, Garmin, or Lowrance trolling motors?

This battery is designed for compatible 36V trolling motor systems, including many setups using Minn Kota, Garmin, Lowrance, and other major marine trolling motor brands. Confirm that your motor is a 36V model and that its current draw, wiring, fuse protection, and manufacturer battery requirements match before installation.

Is this an IP67 waterproof 36V battery?

Yes. This model is listed with an IP67 waterproof enclosure, meaning it is fully dustproof and rated for temporary immersion up to 1 meter for 30 minutes. For best long-term reliability, install it in a secure battery compartment and avoid pressure washing, damaged seals, or prolonged submersion.

Does the Bluetooth trolling motor battery monitor show state of charge?

Yes. Built-in Bluetooth connects to the Epoch app so you can view key battery data such as state of charge, voltage, current, battery status, and cycle information from a compatible iOS or Android device. This helps reduce guesswork while fishing.

How does the internal self-heating feature work?

The internal self-heating system helps warm the cells before charging in cold conditions. This supports safer cold-weather charging for early spring and late fall fishing, while the BMS provides low-temperature charge protection to help prevent cell damage.

Can this battery be used for engine starting?

No. This is a 36V deep cycle marine battery for trolling motor and compatible 36V power applications. It is not designed for engine cranking or outboard starting. Use a dedicated cranking-rated battery for engine starting applications.

Additional Resources

36V 100Ah LiFePO4 Lithium Battery (3.84kWh) specifications and feature details (image 1)

Safety certifications & listings

Every mark below is a standard this battery has been tested against or a listing it carries. Here is what each one covers, in plain English.

  • IP67

    Ingress protection

    Dust-tight, and protected against temporary immersion in up to 1 m of water for 30 minutes. Under IEC 60529 the first digit rates solids and the second rates water.

    • Sealed against dust and dirt
    • Rain, spray and wash-down
    • Survives being submerged

    IEC 60529, Degrees of protection provided by enclosures

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