Charging Solutions

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charging solutions




The BSU1 provides a constant voltage   to prevent loss of data and possible damage to control units during software updates and module reprogramming as well as diagnostic processes when in a Key On, Engine Off state.

During diagnostic or programming operations, the vehicle’s systems are operating solely from the battery. Maintaining battery charge during this process is critical. 

The status of BSU1 is indicated simply by three LED’s – POWER, POLARITY, DEMAND. When all 3 are illuminated, BSU1 is supporting the battery.

The output voltage of BSU1 has been designed so that overcharging the battery is impossible no matter how long it is connected for.


  • BSU1 provides a stable voltage and up to 25 amps of fully regulated power to prevent loss of charge and damage to the battery
  • BSU1 can be used with any 12V automotive battery.
  • When the battery is charged BSU1 is a regulated power supply to sustain accessory loads and offset parasitic drain.
  • BSU1 can be used in the showroom to maintain the battery charge while power consuming accessories are being demonstrated without fear of power loss.
  • Unique moulded case with no sharp edges is safe to use around the vehicle, can be wall or tool chest mounted, or used under the bonnet.
  • Reverse polarity protection
  • Detachable 3m leads for easy replacement.
  • Supplied with 5M IEC mains lead.

Approved by Ford for use with IDS.
Approved by Volvo UK
Approved by Nissan


Input        100VAC – 240VAC 
Output    12.7V up to 25A continuous  
Weight    3 Kg
Size           250 x 170 x 130 mm