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K4 Fast Charger
  • K4 Fast Charger
Tedgix K4 Battery Fast Charger

Tedgix K4 Battery Fast Charger
$38.00 USD
Description

Fast charger for Tedgix K4 series batteries, the same packs that run the K4C Cruise motor. Calibrated charging voltage, locking KWAY connector, smart protection against overcharging and overheating, and a 100-240V adapter brick. Charger kit only, battery sold separately.
Key Features
  • Official K4 Compatibility: Calibrated by Tedgix for K4 series batteries, including the B4 (423 Wh) and B8 (808 Wh) packs sold at NIXY.
  • Locking KWAY Connector: The teal-accent charging plug locks into the K4 battery port for a stable, uninterrupted connection.
  • Smart Safety Protection: Built-in circuitry prevents overcharging, overheating, short circuits, and over-voltage.
  • 100-240V Input: The adapter brick handles worldwide household voltage; NIXY ships the US wall plug.
  • Protects Battery Lifespan: Correct voltage and current help the K4 packs reach their rated 1,000 charge cycles.
Product Specifications
  • Manufacturer: Tedgix (NIXY is an official distributor)
  • Compatibility: Tedgix K4 series batteries (B1-B8, including the B4 and B8 sold at NIXY)
  • Connector: KWAY locking charging plug (teal accent)
  • Input: 100-240V AC wide voltage
  • Plug type: US wall plug (NIXY version)
  • Protection: overcharge, overheating, short circuit, over-voltage
  • In the box: charger adapter brick + power cord (battery sold separately)
  • Warranty: 1-year manufacturer warranty
Shipping & Returns
  • Free U.S. shipping on orders over $100 (excluding watercraft).
  • Watercraft (paddleboards, kayaks, decks) ship for a flat $35 per item.
  • Buy with confidence.
    If you’re not completely satisfied, you can return your product within 30 days.
  • For full details, see our Shipping & Return Policy.
K4 Fast Charger

Tedgix K4 Battery Fast Charger

Fast charger for Tedgix K4 series batteries, including the B4 and B8 packs that power the K4C Cruise SUP and kayak motor. It is calibrated by Tedgix to deliver the correct charging voltage and current for the K4 battery line, which protects the cells and helps the pack reach its full cycle life.

The charging cable ends in the KWAY connector, a locking plug with a teal accent that clicks securely into the K4 battery port and stays put for a stable, uninterrupted charge. Built-in smart circuitry guards against overcharging, overheating, short circuits, and over-voltage on every charge.

The adapter brick accepts 100-240V wide voltage input, so it works on household power across North America, Europe, and beyond with the right wall cord. NIXY ships the US plug version.

This is the charger kit only. The B4 and B8 batteries are sold separately. Backed by a 1-year manufacturer warranty. NIXY is an official distributor of Tedgix products.

Good to know
Which batteries does the Tedgix K4 charger work with?

It charges the full Tedgix K4 battery series (B1 through B8). At NIXY that means the B4 (423 Wh) pack sold on its own and the B8 (808 Wh) pack offered in the K4C motor bundle. It is the fast charger Tedgix supplies for the K4 line.
Do I need this charger if my battery has USB-C?

Not strictly. The K4 batteries also accept USB-C PD3.1 fast charging from a high-wattage USB-C charger. The dedicated Tedgix fast charger is calibrated for the K4 packs, and its locking KWAY plug connects through the battery's DC charge port instead of USB-C.
Can I use this charger outside the US?

Yes. The adapter brick accepts 100-240V input, so it runs on household power worldwide. NIXY ships the US wall plug version, so for EU, UK, or AU outlets you would need a plug adapter or a region-specific power cord.
What safety protections are built in?

The charger has smart circuitry that protects against overcharging, overheating, short circuits, and over-voltage. Combined with the battery's own management system, charging stops automatically when the pack is full.
What is the KWAY connector?

KWAY is the locking charging plug Tedgix uses on the K4 line, marked with a teal accent. It clicks into the K4 battery's charge port and locks in place, so the connection stays stable through the whole charge instead of working loose.
Does the charger come with a battery?

No, this is the charger kit only: the adapter brick and power cord. The K4 batteries are sold separately. NIXY carries the B4 (423 Wh) as a standalone spare and the B8 (808 Wh) as part of the K4C Cruise motor bundle.

Free Shipping in the US

Free US Continental Shipping on $100+ Orders
$35 Flat on Watercraft

Fast Delivery

Orders Ship Same Day or Next Business Day

Free Returns

Hassle-Free 30-Day Postage-Paid Return 

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