Home / TEDGIX (EDGE) K4 Waterproof Battery Series | Replacement Power Pack (B1/B2/B4/B8)

TEDGIX (EDGE) K4 Waterproof Battery Series | Replacement Power Pack (B1/B2/B4/B8)

(5.0)
Marine-Grade Lithium Power | From 98Wh (Airline Safe) to 820Wh (Ultra Range)
Official waterproof replacement batteries for the TEDGIX (EDGE) K4 propulsion system. Choose from 4 capacities to match your adventure: B1 (Travel), B2 (Lite), B4 (Standard), or B8 (Pro). Rugged, fast-charging, and ready for the open water.
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  • Detail

    Extend Your Range. Power Your Adventure.

    Don't let a drained battery cut your exploration short. The TEDGIX K4 Battery Series (formerly EDGE) offers a range of high-performance, waterproof lithium-ion power packs designed specifically for the K4 Motor System. Whether you need a lightweight travel companion or all-day endurance, we have the right power solution for you.
    Choose Your Power Level:
    ✈️ B1 Travel Kit (98Wh): The Airline Companion
    Capacity: 98Wh / 4.4Ah
    Best For: Air travel and short sessions.
    Highlight: Rated under 100Wh, this battery is airline-approved for carry-on luggage (check with your airline specific rules).
    ⚡ B2 Cruiser (199Wh): The Lightweight Balance
    Capacity: 199Wh / 9Ah
    Best For: Casual paddling and fishing trips.
    Highlight: Double the range of the B1 while remaining compact and lightweight.
    🔋 B4 Standard (444Wh): The Day-Tripper
    Capacity: 444Wh / 20Ah
    Best For: Full-day outings and extended cruising.
    Highlight: The perfect balance of weight and endurance, offering hours of continuous assistance.
    🏆 B8 Expedition (820Wh): The Marathon Beast
    Capacity: 820Wh / 37Ah
    Best For: Professional use, multi-day trips, and long-distance touring.
    Highlight: Maximum capacity for those who refuse to turn back.
    Key Features:
    🌊 IP68 Waterproof: Fully sealed marine-grade casing protects against water ingress, salt corrosion, and sand.
    🛡️ Smart BMS Protection: Integrated Battery Management System prevents overcharging, overheating, and short circuits for maximum safety.
    🔌 Fast Charging Ready: Supports high-speed charging to get you back on the water faster (Charger sold separately or with kit).
    🔗 Easy Swap: Designed for quick plug-and-play connection to the K4 motor unit.
  • Customer Reviews
    Cust********43P

    Great

Multiple Specifications to Meet Various Application Needs

B1 Capacity:95Wh

Weight:800g
Voltage:TYPE - C: PD3.1, Max 100W
Waterproof Quick-Connect DC Port: 24V
Battery Life When Paired with K4
  • Eco Mode: 1.1h
  • Full - speed Mode: 15min

B2 Capacity:190Wh

Weight:1350g
Voltage:TYPE - C: PD3.1, Max 100W
Waterproof Quick-Connect DC Port: 24V
Battery Life When Paired with K4
  • Eco Mode: 2.5h
  • Full - speed Mode: 33min

B4 Capacity:423Wh

Weight:2570g
Voltage:TYPE - C: PD3.1, Max 100W
Waterproof Quick-Connect DC Port: 24V
Battery Life When Paired with K4
  • Eco Mode: 5h
  • Full - speed Mode: 1.3h

B8 Capacity:808Wh

Weight:4250g
Voltage:TYPE - C: PD3.1, Max 100W
Waterproof Quick-Connect DC Port: 24V
Battery Life When Paired with K4
  • Eco Mode: 8.75h
  • Full - speed Mode: 2h

Dual Function: Waterproof Power Source & High-Capacity Power Bank

TYPE-C PD3.1 bidirectional fast charging not only enables high-power discharge, but also quickly charge phones, laptops, drones and other mobile devices.

Dual Ports Support Charging and Discharging Simultaneously

TYPE-C Port / Waterproof Quick-Connect DC Port.

Safety Temperature Control Technology for Worry-Free Operation

Intelligent temperature control technology enables rapid heat dissipation whether in peak power or trickle charging.

IP68 Dustproof and Waterproof Rating

Allowing you to navigate the water without worries

Stronger and Lighter, Redefining Waterproof Batteries

Travel fully charged and explore wider horizons without worries.

Product Parameters

For details, please contact official customer services

Product Parameters

For details, please contact official customer service
Product Name Product Size Battery Weight
B1 122.5*63.8*75.5mm 800g
B2 196.5*63.8*75.5mm 1350g
B4 197.5*76.4*123.8mm 2570g
B8 271.5*76.4*123.8mm 4200g
Product Name Battery Capacity Battery Type
B1 95Wh Lithium battery
B2 190Wh Lithium battery
B4 423Wh Lithium battery
B8 808Wh Lithium battery
Product Name Cruise at 5km/h (3.1mph) Cruise at 9.5km/h (6mph)
B1 1.1h 15min
B2 2.5h 33min
B4 5h 1.3h
B8 8.75h 2h
*Battery endurance parameters (The parameters are measured data in specific environments, for reference only)