Supercapacitors in handheld terminals

Handheld devices may require high power operations such as printing and wireless transmission. A supercapacitor supports a battery to for high peak power applications. CAP-XX’s low ESR, low profile prismatic supercapacitors can be easily integrated into any handheld device where size is critical, while our cylindrical cells offer a low-cost alternative if size is not crucial.

Supercapacitors provide both peak and backup power

Increasingly more industry sectors such as retail, manufacturing and agriculture are using handheld devices to track, organise and print data. To satisfy the many functions such as wireless transmissions, LED flash or scanning, and printing, devices need to maximise power whilst maintaining long battery run time all in a small package size for portability. Supercapacitors can benefit these devices through: pulse power support, extending battery life, support for low temperature operation, drop test and hot swap ability, “Last gasp” transmissions and graceful shutdown. The supercapacitor is an ideal power buffer, charged by the energy source at average load current and delivering periodic or sporadic bursts of peak current thus minimizing the load seen by the battery and the voltage droop seen by the load. This enables longer battery run time and operating capacity. The CAP-XX supercapacitor’s low ESR even at temperatures to -40°C enables terminal operation outdoors in the Northern winter.

If there is a temporary loss of power due to dropping the device causing battery contact chatter, the supercapacitor, with its high capacitance, can continue powering the system without any loss of data or need for a system restart. This prevents interruption of a transaction in a POS terminal.

See Application Brief Supercapacitors in handheld terminals.