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MicroGenius® 2 Genset & Marine Battery Chargers

Primary Product ID
M1-22, M3-22, M4-22

Breakthrough Technologies · Robust Reliability · Class-leading Efficiency

  • Dynamic Boost™ Charge – safely recharges batteries faster than competing products
  • HELIX™ technology – significantly increases battery life, cuts risk of sudden battery failure
  • Field selectable 12/24 volt output – simplifies inventory management & field service
  • Hardened switchmode powertrain – delivers first-class abuse resistance, clean DC power
  • Class-leading energy efficiency – saves energy & money, certified to new energy standards
  • Small, lightweight, rainproof package – allows installation in nearly any location
  • Standard J-1939 & Modbus comms – enable genset, workboat & building integration
  • Listings to all relevant standards: C-UL, CE, NFPA, ABS – ensure trouble-free inspections
  • Certified to California energy efficiency standards – legal for use in California and Oregon

MicroGenius 2 battery chargers are a completely new generation of genset, marine, and standby battery chargers from SENS.  They are smaller, lighter, more powerful, and charge batteries better than any previous generation product. There are three power levels to choose from, all of which are field-selectable for 12 or 24 volt DC operation : 180 watts (12V-10A/24V-6A), 300 watts (12V-12A/24V-10A), and 450 watts (12V-15A/24V/15A).  All models have universal AC input and industry standard local and remote communications.

MicroGenius 2 models outperform comparable competitive models in charging performance, ruggedness and efficiency.

See the full MicroGenius 2 story + videos here

Frequently Asked Questions
The MicroGenius 2 Installation and Operation Manual indicates that the output protection fuse is non-replaceable. Does this mean the charger has to be returned to the factory if the fuse blows?

The DC fuse is present to protect against internal component faults.  If another component in the charger fails, the fuse will blow if necessary to prevent excessive current output.  Such a failure, while unlikely, would require the charger to be repaired anyway.

Unlike legacy chargers with replaceable fuses, the MicroGenius 2’s output fuse is unlikely to ever blow from an external cause.  The reason is that the charger employs an exceptionally fast control system. It’s so fast that it can easily disconnect or electronically current limit an energized charger in nearly all cases where over-current protection is required, such as a reverse-connected battery or shorted output leads.

Legacy chargers that operate at line frequency (50- 60Hz) have control systems that are too slow to react immediately to over-current inducing events.  The MicroGenius 2, operating at greater than 100,000 Hz, easily responds fast enough.

While it is still possible to blow the output fuse in the case of a lightning strike or other huge DC transient, any such event will most likely damage other components in addition to blowing the fuse.

Given all these factors, SENS elected to solder in the fuse for increased reliability.