SBS-MicroSMART RHF: Rapid High Frequency Industrial Battery Charger

The MicroSMART Rapid High Frequency (RHF) Battery Charger from Exponential Power provides you with a powerful, energy-efficient battery charger in a sleek lightweight package. Utilizing a modern, state-of-the-art MOSFET power conversion circuit, the MicroSMART charger efficiently and accurately converts AC power to the proper DC power levels required to precisely charge an industrial battery.

Charging Technology

  • Unique charging algorithm for High Frequency / Rapid Charge applications
  • Pulse charging profile to maximize acid mixture during charging


  • Microcomputer smart charger
  • Charges all common battery types
  • High efficiency, 92%
  • High power factor, 0.95
  • Low weight and small volume
  • Advanced precision control for best battery life
  • Display and control panel permit simple programming
  • Archived charge data, 1,800 cycles
  • 480VAC 3 phase, 60Hz
  • Wireless radio standard on all MicroSMART chargers
  • Wall mount design


Batteries must be equalized on a regular basis to ensure maximum life. The MicroSMART charger facilitates this routine through its auto equalize feature which allows equalize cycles to be programmed for a specific day of week, or by number of complete charge cycles.

Energy Saving Features

In addition to the energy efficient MOSFET design of the MicroSMART charger, the advanced control provides other energy-saving options such as charge block-out periods. Each day, up to three different periods may be blocked from charging. This feature can be used to avoid peak demand periods, time of day use billing, or any other reason why you may not want chargers running during a particular time of day.

Monday Morning Refresh

When a battery has been sitting over the weekend there is a certain amount of self-discharge that occurs. In order to provide a fresh, fully charged battery, you can program the charger to charge for up to 60 minutes prior to the start of the work week.


Every MicroSMART charger is equipped with a radio transceiver that allows the charger to communicate with other chargers as well as a host computer when equipped with the optional MicroSMART USB Gateway. The wireless communication system is FCC certified.

Ionic Mixing Option

When the Ionic mixing charge curve is selected, the charger pulses the output current during the finish portion of the charge cycle resulting in brief periods of increased gassing. This gassing action improves the mixing of the electrolyte without increasing electrolyte usage. This ensures that the heavy acid at the bottom of the cell is thoroughly mixed throughout the cell, preventing stratification and extending battery life.


UL Listed Yes
cUL Listed Yes
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