Supernova B54 Battery Pack

Item number: 85263
B54 Battery Pack - black/universal
B54 Battery Pack - black/universal
B54 Battery Pack - black/universal
  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.91 / 5.00
The Supernova B54 Battery Pack fits the M99 Mini Pro B54 front light.

Information regarding the return of batteries and electrical equipment:

Information on the return and disposal of used batteries and electrical equipment can be found here.


Type: lithium-ion battery
Voltage: 10.9V
Energy Quantity: 54 Wh
Capacity: 4954 mAh
Charge Time: 2.5 hours (rapid charge), 6 hours (battery-friendly charge)


- M99 Mini Pro B54 Front Light
- Supernova App
- Garmin Edge 530
- Garmin Edge 830
- Garmin Edge 1030


- communication via Bluetooth with the Supernova app on smartphone or smartwatch, as well as with Garmin Edge devices for up-to-the-minute charge level display
- tested in the cold chamber of Deutsche Bahn
- light sensor for automatic activation of the low beam, e.g. when driving through tunnels
- vibration sensor enables automatic shutdown at standstill in Coming Home mode
- hibernation mode conserves the battery when not in use
- Longlife mode for battery-friendly charging
- interruption of charging in case of overheating, preheating function if charging temperatures are too low


Hibernation Mode
If the battery is not to be used for a long time, it can be put into hibernation mode. It is then kept at voltage on the charger in such a way that the chemical ageing of the battery can be almost completely stopped. This also prevents deep discharging.

Longlife Mode
The Longlife mode provides the battery cells with a particularly long service life. A special process-controlled charge prevents the cells from overheating during the charging process. In addition, the battery is only 85% charged in this state. This prevents a damaging high battery voltage.

Optimum Temperature
The battery has an optimum charging temperature of approx. 20 °C. Therefore, an integrated battery heater ensures the optimum charging temperature in very cold conditions. In the event of heat above 40 °C, the charge is automatically prevented until the temperature has fallen again.

To The Minute
A precise Battery Management Controller is integrated in the battery, which enables a to the minute residual light display for all brightness levels in the Supernova App, independent of temperature. On the battery itself, the status is displayed with an RGB LED.

Coming Home Mode
After your ride you can simply leave the lights on. A vibration sensor has been integrated which detects the end of the journey and switches off the light after a few minutes with a time delay. This way the climb out of the dark bicycle cellar is still illuminated.

Light Sensor
The light sensor in the battery enables intelligent activation of the low beam when darkness falls or sudden light changes, e.g. when riding through tunnels.

Manufacturer Number:



- 1 x Supernova Spare B54 Battery Back
- 1 x hook and loop fastener


  • black/universal: 300 g


  • black/universal, in stock

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