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Daytona 89371 - User Manual

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http://www.daytona-europe.com
USB power supply body
Underbracket ※Installed
Transformer ※ Installed
Screw ※ Installed
Rubber band (t=2.0, 1 spare)
No. Part name
Size
(mm)
Qty
⑥
⑦
⑧
⑨
⑩
①
②
③
④
⑤
Extension wire harness
Brake switch branching wire harness
Wire connector (※1)
Cable tie
Glass tube fuse (※2) ※ Installed
14×70
1200
270
150mm
3A
1
1
1
1
2
1
1
1
2
1
No. Part name
Size
(mm)
Qty
SLIM-MOUNT USB
#89371 (98437) 1PORT 2.4A (ACC)
#89372 (98438) 2PORT 4.8A (ACC)
PRODUCT FEATURES
COMPONENTS
INSTALLATION
● Dedicated 12 V DC automotive device.
● The thin body of this USB power supply provides a sleek fit to the vehicle.
● The single-port USB power supply has an output of 5 V, 2.4 A × 1.
The dual-port unit has an output of 5 V, 2.4 A × 2.
● Easily connect the wiring with the included brake switch branching wire harness.
(
※
Except for some switches)
● The clamp is compatible with handlebar diameters of 22.2 mm / 25.4 mm.
● Safe design with 3A fuse.
● Overcurrent protection feature.
● Reversed-connection prevention feature. (fuse blows and input current is cut)
【
Precautions
】
● For details on removing and installing vehicle parts, etc., refer to the service manual published by the vehicle manufacturer.
● Secure the vehicle on a stable location so that it will not fall over while being worked on,
and ensure the safety of your environment while working.
● Before starting work, refer to the following diagram and check the operation of this product.
● Disconnect the cable from the negative battery terminal on the vehicle.
※
1. Compatible wires: 18–14 AWG, 0.75–2 sq
※
sq = (JIS) Cross-sectional area (mm2)
①
USB power supply body
②
Underbracket (
※
Installed)
③
Transformer
④
Screw (
※
Installed)
⑤
Rubber spacer
⑥
Extension wire harness
⑦
Brake switch branching wire harness
⑧
Wire connector
⑨
Cable tie (2pcs)
⑩
Glass tube fuse (3A/ Installed)
+ (Red)
- (Black)
[ Pre-installation check ]
● Connect +(Red) wire to the positive post of the battery and –(Black) wire to the negative post.
Then check that this product operates correctly.
※
Be careful, the reversed-connection prevention feature will cause the fuse to blow.
1/4
[Dimensions]

Questions and Answers

  • S
    smithmarieAug 5, 2025
    What to do if the charging indicator is on, but the charge does not increase or decrease on Daytona Motorcycle Accessories?
    • T
      Tracy BrownAug 5, 2025
      If the charging indicator is on, but the charge of your Daytona Motorcycle Accessories does not increase or decrease, and your electronic device is abnormally hot, temporarily stop using the device. If a wire or cable is held in place bent at a sharp angle, reroute the wire to provide sufficient slack. If the transformer is installed near a heat-generating source, change the installation location of the transformer.
  • E
    Emily AndersonSep 10, 2025
    How to prevent battery drain during long-term storage of Daytona 89371 Motorcycle Accessories?
    • P
      Pam GrossSep 12, 2025
      This product consumes a small amount of standby power, even when no electronic device is connected to a USB port. The consumption is small, but battery depletion will be faster than usual if the battery is weak or during long-term storage. Connect the + wire to the wire that carries 12 V when the ignition key is turned on.
  • T
    taylorrossOct 27, 2025
    Why are my Daytona 89371 not charging?
    • K
      Kristen FinleyOct 27, 2025
      If your Daytona Motorcycle Accessories are not charging, ensure that 12 V DC is supplied at the + wire connection and that the – wire is connected to the ground. Check the wire connections of each part, and reroute any wire or cable bent at a sharp angle to provide sufficient slack. Also, make sure that the power supply wires are not reversed. If the fuse blows immediately after being replaced, consult your retailer. In rare cases, consult with the vehicle retailer to check the electrical system of the vehicle. The capacity is maximum 12 W (5 V, 2.4 A) for each port, so check the rating of your electronic devices. Certain mobile phones may not charge unless a communication cable is used, so check the USB cable. Ensure that the USB cable is not damaged and that there is no improper contact ...
  • R
    Raven OlsenNov 11, 2025
    Why does charging stop on my Daytona 89371?
    • M
      Michael SmithNov 12, 2025
      If charging of your Daytona Motorcycle Accessories stops, check the wire connections of each part for improper contact. Make sure that the fuse holder wires are not pulled when the handlebar is operated or while riding; if there is tension, reroute the wire. Certain mobile phones may interpret the voltage drop that occurs when the engine is started to be abnormal and stop charging, so connect the electronic device to the USB port after starting the engine. If the transformer is installed near a heat-generating source, change the installation location of the transformer. Make sure that the USB cable is not damaged and that there is no improper contact at the USB port or in the USB connection with the connected device. If the transformer is exposed to interference, take measures against nois...

Summary

SLIM-MOUNT USB

PRODUCT FEATURES

Details the dedicated 12V DC automotive device features, sleek fit, and power outputs.

COMPONENTS

Lists all parts included with the USB power supply, such as the body, bracket, harness, and fuse.

INSTALLATION

Checking the installation location

Specifies required mounting space and checks for interference with vehicle parts.

Installing USB power supply body on Ø22.2 mm handlebar

Details attaching the USB power supply body using screws and rubber bands for 22.2mm handlebars.

Connecting power supply wires

Explains how to connect the power supply wires, including using the brake switch branching harness.

Branching the brake switch power supply

Alternative power supply connection

Details connecting power using an extension harness when the brake switch harness is not used.

Troubleshooting

Daytona 89371 Specifications

General IconGeneral
BrandDaytona
Model89371
CategoryMotorcycle Accessories
LanguageEnglish