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Defiant ST: Getting Started and Battery Removal

Before assembling your Defiant ST

The Defiant family manual includes earlier display variants. The new Defiant ST does not use the L300. Use mechanical illustrations only where they match your supplied hardware; do not apply the manual's earlier display instructions to the new ST. If parts differ or are damaged, contact support before assembly or riding.

Do not substitute assembly instructions from a different model. Have a qualified bike technician check the assembly if you are unsure about wheel attachment, steering, brakes, or fastener tightening.

Remove the ST battery

  1. Turn the bike off and disconnect the charger. Support the battery so it cannot fall.
  2. Locate the keyhole on the left side of the frame.
  3. Turn the key counter-clockwise, then pull the battery out with its top coming out first.
  4. For reinstallation, follow the manual and check that the battery is secure before riding. Do not force a stuck battery or lock.

The ST battery-removal illustration is on printed page 8 of the shared manual.

Charging and the display

Find the battery charging connection using the manual's charging illustrations. Use the supplied or Jupiter-approved charger and follow the charging and troubleshooting guide. Do not use any USB port as a bike-battery charging connection.

Use the speed-setting steps on the Defiant ST support page. Do not use the L300 menu or error-code table. The exact new ST display model has not been confirmed here, so the L04NH table is not assigned to it either. For a display manual or error code, send support photos of the screen and buttons.

Before the first ride

Complete the pre-ride checklist, then register your bike. Keep your receipt and serial-number photo with your records.

Defiant ST Electric Bike Product Support

New Defiant ST display: this model does not use the L300. Use the Defiant ST speed-setting steps below. The linked family manual includes earlier display illustrations; do not use its display menus or another display's error codes for the new ST.

Notes

How To Access Settings / Adjust Speed Limit
  1. Turn the bike on.
  2. Hold down the + and − buttons together for 3–6 seconds.
  3. Enter 9999 in the code box.
  4. Use the M button to find P-08.
  5. Change the setting to 50.
  6. Power the bike off to save the setting.
Defiant ST Setup / Battery Removal

Read the Defiant ST getting-started guide for the shared manual, ST battery removal, charging guidance, and first-ride checks.

Display Help for the New Defiant ST

The new Defiant ST does not use the L300. Its exact display model and error-code reference are not yet confirmed in this guide; do not assume the L04NH table applies either.

For display help, send a screen and button photo with your bike model to Jupiter Bike Support.

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