FIT Ultracore

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Type

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Battery repair

With a battery repair, a diagnosis is first made. Based on that diagnosis, we determine what is needed to repair or refurbish the battery. We will contact you to discuss the diagnosis so that you can determine what to do with your battery.

Choose a repair (optional)

In case you don't want to repair your product

We will charge for the research costs and send your battery back.

For revision or repair, it takes approximately 15 workdays before your battery is ready after receipt

Specifications

Use for

FIT E-Bike System Integration

Type number

10INR22/71-5

Nominal battery voltage

37.00 V

Part number

25Ah Biketec

Manufacturer code

925Wh

Original capacity

25 Ah

Product Name

FIT Ultracore

Brand

FIT E-Bike System Integration

KWS product code

acc-fit-fit-esi-37.00v

Maximum charger voltage

42.00 V

Color

black

Plug and play

Yes

Weight

4 kg

Type of charger connection

FIT 6

Fits these bikes

  • Bulls E Stream
  • Bulls E Stream EVA
  • Bulls E Stream EVA TR
  • Bulls E Stream EVO
  • Bulls E Stream EVO AM
  • Bulls E Stream EVO AM Fit
  • Bulls Sturmvogel
  • Bulls Sturmvogel EVO
  • Bulls Tourer
  • Bulls Tourer EVO
  • Bulls Vuca
  • Bulls Vuca AM
  • Bulls VUCA EVO AM
  • Bulls VUCA EVO FSX
  • Bulls VUCA EVO Speed FSX
  • Bulls VUCA EVO X
  • Bulls Vuca Speed FSX
  • Hercules Intero
  • Hercules Intero Pro
  • Hercules Intero Sport
  • Kettler Picargo
  • Kettler Picargo FS
  • Kettler Picargo HT
  • Kettler Pinniato
  • Kettler Pinniato FS
  • Kettler Pinniato FS Speed
  • Kettler Pinniato FS Sport
  • Kettler Pinniato HT
  • Kettler Pinniato HT Comfort
  • Kettler Pinniato HT Speed
  • Kettler Pinniato HT Sport
  • Kettler Pinniato HT Sport Nicolai Nicolai SATURN
  • Kettler Velossi
  • Pegasus Estremo
  • Pegasus Estremo EVO
  • Riese Muller Delite5
  • Riese Muller Homage5
  • Rotwild R C1000
  • Rotwild R X1000
  • Rotwild R.X1000 Ultra
  • +15
  • No bike models found
Keep typing for more specific results And 15 more bike models, use the search to find yours

Frequently asked questions

We do not offer a cell replacement for this type. That means one of two things: the cells cannot be taken out of this battery, or we have not seen enough of them yet to set a fixed price for a cell replacement. Repair is possible. The fault is then usually in the charging port or the electronics. Register the battery on this page, we run an intake test and send you a quote. We only start once you have agreed.

We know after the intake test, because the price depends on the part that has failed. You get a quote first. Expect more than €95. That amount is our inspection fee, and you only pay it if you turn down our proposal; we then send the battery back. If you accept, you pay for the repair and no inspection fee. If there is nothing we can do for your battery, it costs you nothing.

Register your battery on this page and follow the steps at checkout; we arrange the collection and send you the tracking details by email, with the time the courier will come. Put in the box: the printed insert form, the battery, the charger, and the key in a sealed envelope if your battery has a lock (do not tape it to the battery). Without the charger and the key we cannot test your battery fully. Your bike stays at home. Ask the courier for a proof of handover; that is your proof of shipping.

That depends on how busy the workshop is and on what we find in the intake test, so we do not quote a fixed number of days here. The current lead time is on our lead-time page.

Yes, on the work we carried out and on the parts we replaced. The warranty does not cover parts of the battery we did not work on. If we repair the charging port, for example, the cells are not included. The full terms are in our warranty conditions.

Customer service

Find answers in our help center

Many questions are already answered by our staff.

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How does Repair of my FIT Ultracore work?

Search and order your battery in the webshop

You can find your FIT Ultracore in the webshop based on the brand name or the model number on the battery.

Send your battery for free or have it picked up at no cost.

After your order, you will receive an email with shipping instructions.

We repairing your FIT E-Bike System Integration battery.

We'll start repairing your battery and keep you updated on the progress.

FIT Ultracore frame battery: repair

The Ultracore is a large FIT frame battery with 25 Ah. It is fitted to many bikes built on the FIT system, including the Bulls Sturmvogel EVO, the Hercules Intero, the Kettler Pinniato and the Pegasus Estremo.

KWS repairs this pack. We recover cells that were stored empty for too long, replace a faulty BMS or circuit board and fix a worn charging port. Each Ultracore gets a test of its cells and BMS before any work starts. After that you receive a proposal with the price, and nothing is done until you agree. If you decline, we send the battery back for the inspection fee stated on this page.

Cell replacement for the Ultracore is not offered through this page.