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kMax Battery

Power Your Kayak. Your Way.

Coming Spring 2027

kMax Battery New
HIGH-PERFORMANCE AND DURABLE LIFEPO4 BATTERIES

kMax Battery 48V

kMax 2200 Spirit Compact Smart Connected
Designed specifically for kayak anglers and small craft, the ePropulsion 48 V kMax Battery delivers serious range without sacrificing deck space. At only 24.3 lbs (11 kg) and compact dimensions of 13.8 x 7.2 x 7.6 in (350 x 183 x 192 mm), this LiFePO4 battery slips into tight spaces, inside the hull, under seats, rear wells, or larger kayak crates in multi-unit configurations.

Key Features of kMax LiFePO4 Battery

One-plug Connector

Indicator Light

Built-in Strap Handle

One-plug Connector

Modular Compact Design

With compact dimensions of just 13.8 × 7.1 × 7.6 in, the kMax Battery fits below deck through the hatch, freeing up valuable deck space while lowering the kayak's center of gravity for improved stability and handling. A built-in slot handle makes transport and repositioning easy.

Stackable Design. Scalable Power

The modular design features a 1024 Wh battery that can be used individually or connected in parallel. Scale up to four batteries for extended range and over 4 kWh of total capacity. Parallel connection is simple. Just connect a single cable per unit, and the system handles the rest. Batteries can be stacked or arranged side by side to adapt to your kayak's available space.

Single Cable Installation

Installation is remarkably simple. The positive and negative cables and communication cable are all combined into a single integrated cable, allowing you to complete the entire connection in one go. Less wiring means fewer failure points and reduced clutter.

Bluetooth Connectivity

Bluetooth communication lets you monitor battery state of charge and enables faster service diagnostics via the ePropulsion app. View real-time data, perform software updates, and run diagnostics from your smartphone or tablet.

Fast Charging

Get back on the water faster with rapid recharge capability. A single battery pack recharges from 0% to 100% in as little as two hours, and even a four-battery setup can be fully charged overnight, making it ideal for professional anglers.

Long Life Cycle

Engineered for durability, the kMax LiFePO4 battery provides up to 2,800 cycles at 80% SoH.*

*Tested at 0.5C charge and discharge rates under 25°C conditions

Waterproof to IP67

kMax battery is waterproof to IP67 standards, offering peace of mind for all-weather maritime use.

Effortless Portability

Built-in strap handles attach to one of four strap slots. These same slots can also be used with tie-down straps to securely fasten the battery in place.

Specs

kMax Battery New
Chemistry Lithium Iron Phosphate (LiFePO4)
Energy 1024 Wh
Capacity 20 Ah
Rated Voltage 51.2 V
Battery Life 2,800 cycles at 80% SoH
Weight 24.3 lbs (11 kg)
Dimensions (L x W x H) 13.8 x 7.2 x 7.6 in (350 x 183 x 192 mm)
Cut-off Voltage 41.6 V
Final Charging Voltage 57.6 V
Continuous Max Discharge Current 55 A
Series Connection N/A
Parallel Connection Up to 4
Cell Configuration 16S1P
Continuous Max Charge Current 20 A
Charging Temperature -10 to 55 °C
Discharging Temperature -10 to 60 °C
IP Rating IP67
Communication Two CANs for ePropulsion motors, parallel batteries & charger
Shipping Classification UN3480, Class 9, UN38.3 Certified
Approvals CE, UKCA, FCC
Warranty (Non-Commercial Use) 2 years

Stay Connected via ePropulsion Apps

Monitor battery state of charge and enable faster service diagnosticsvia the ePropulsion app. View real-time data, update software, and pull diagnostics from your phone.

Where to buy?

Please use our Dealer Locator to find your nearest stockist of the ePropulsion range.

Find your nearest dealer