• Battery packs may explode or release toxic materials. Risk of fire or burns. Do not open, crush, modify, disassemble, heat above 140°F (60°C), or incinerate.
  • Follow instructions from manufacturer
  • Only use Shure charger to recharge Shure rechargeable batteries
  • WARNING: Danger of explosion if battery incorrectly replaced. Replace only with same or equivalent type.
  • Never put batteries in mouth. If swallowed, contact your physician or local poison control center
  • Do not short circuit; may cause burns or catch fire
  • Do not charge or use battery packs other than Shure rechargeable batteries
  • Dispose of battery packs properly. Check with local vendor for proper disposal of used battery packs.
  • Batteries (battery pack or batteries installed) shall not be exposed to excessive heat such as sunshine, fire or the like
  • Do not immerse the battery in liquid such as water, beverages, or other fluids.
  • Do not attach or insert battery with polarity reversed.
  • Keep away from small children.
  • Do not use abnormal batteries.
  • Pack the battery securely for transport.


  • This equipment is intended to be used in professional audio applications.
  • EMC conformance is based on the use of supplied and recommended cable types. The use of other cable types may degrade EMC performance.
  • Use this battery charger only with the Shure charging modules and battery packs for which it is designed. Use with other than the specified modules and battery packs may increase the risk of fire or explosion.
  • Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment.
This symbol indicates that dangerous voltage constituting a risk of electric shock is present within this unit.
This symbol indicates that there are important operating and maintenance instructions in the literature accompanying this unit.

Caution: Do not transport chargers with batteries inserted.

Warning: Do not charge batteries in enclosed spaces without proper ventilation.

SBC203 Charger

The SBC203 two-bay charger holds two SB903 batteries or compatible transmitters. It may be used in any appropriate location with adequate space and ventilation.


  • Charge up to two SB903 batteries or compatible transmitters
  • Securely connect multiple chargers
  • LED icons for battery status

Included Components

  • SBC203 Charger
  • 15W USB Power Supply
  • USB-C cable
  • Bottom plate and screws (4) for attaching additional units

Note: SB903 batteries not included.

Linking Chargers

To save space and reduce clutter, chargers can be linked together using the provided hardware. Line up the bottom indentation on the chargers to be linked and attach the bottom plate using the provided screws. Once linked, chargers can be moved as one piece of hardware.

Note: Each charger requires an independent power supply.


To charge, place batteries into the charging bays with slotted sides down, or insert transmitters into the charging bays with the display facing forward. The LEDs illuminate to indicate battery status.

IMPORTANT: Always insert transmitters facing forward to avoid damage

Charging Status LEDs

Description Color State
Ready for Use Green (solid) Device is fully charged
Charging Red (flashing) Charging
Error Yellow (quick flashing) Battery or power supply error*
Yellow (slow flashing) Outside of operating temperature range
Not charging Off Power supply is disconnected, or no device is docked in the charging bay

* If an error occurs when a transmitter is docked in the charger, remove the battery from the transmitter and place directly into the charger. If the error persists, contact Shure Technical Support.

Note: Store batteries in the charger or in a proper container. To protect terminals from shorting, DO NOT place batteries in a box or pocket with metal objects such as nails, screws, or keys.


SBC203 Battery Charger

Charge Current

625 mA or 250 mA

Lower current used when using another power source, or operating between 0℃ and 10℃

Charge Time

50% = 1 hour : 15 minutes; 100% = 2 hours : 30 minutes

External Power Supply


Power Requirements

5 V DC, 3 A max.

Charging Temperature Range for Battery

0 °C to 45 °C (32 °F to 113 °F)


66.3 x 86.0 x 155 mm (2.61 x 3.38 x 6.13 in.), H x W x L


284 g



Power Supply

Input Voltage Range

100 to 240 V AC

Operating Frequency

50 Hz to 60 Hz

Maximum Input Power

0.6 A

at 100 V AC full load

Output Voltage

4.75 to 5.25 V DC

Maximum Output Power

3.0 A

at 5 V

Operating Temperature Range

0  °C to 60 °C (32 °F to 140 °F)


This device complies with Part 15 of the FCC Rules.

Operation of this device is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment.

Please consider the environment, electric products and packaging are part of regional recycling schemes and do not belong to regular household waste.

有關於台灣進口商的資訊, 請參考產品標籤上的BSMI檢驗標識號碼 (例如:R35393代表益誠國際驗證股份有限公司/臺北市中山區長安東路2段108號7樓之5)

This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.

The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance

Authorized European representative:

Shure Europe GmbH

Global Compliance

Jakob-Dieffenbacher-Str. 12

75031 Eppingen, Germany

Phone: +49-7262-92 49 0

Email: info@shure.de