Mini Battery Module

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The Mini Battery Module is designed to power BigClown battery-operated devices and has been developed to minimize the size of the entire unit. The dimension does not exceed the size of the standard BigClown modules.

Thanks to the use of a modern, low-power, high-efficiency converter, it provides a long service life of two AAA 1.5 V alkaline cells.

The module contains a battery disconnect circuit when another power supply (such as a DC adapter or USB cable) is connected to the system. The battery voltage can be measured at the analog input of the standardized connector.

A typical example of use is a miniature wireless motion detector or a climate sensor.


  • Highly efficient TPS61099 inverter
  • Very low quiescent current <5 μA
  • Efficiency up to 93% at 10 mA
  • Recommended types of batteries:
    • 2x AAA 1.5 V Alkaline or
    • 2x AAA Eneloop NiMH
  • Rated output voltage 3.1 V
  • Circuit for disconnecting the battery
  • Reverse polarity protection
  • Input voltage measurement via ADC input
  • Operating temperature range: -20 to 70 ° C
  • Dimensions: 33 x 55 mm
  • 10-year warranty

Hardware resources

Mini Battery Module