SuperTorque® 8Z Engine Starting System

• 10-year full warranty - say goodbye to regular battery replacements
• More power, less space - 75% smaller than comparable lead-acid – including charger!
• Long life, no maintenance - cuts ongoing cost of truck rolls and electrolyte top-ups
• Sustainable - no hazardous materials; 96% lower lifetime GHG emissions than lead-acid
• Lowest total cost of ownership (TCO) - greater than 50% lower cost over ten years than lead-acid

Solves genset starting problems for good SENS SuperTorque® 8Z Genset Starting System solves the #1 problem with emergency generators: starting battery failure. Unless lead-acid starting batteries on gensets are replaced every one to three years they fail suddenly, without warning. Even if replaced this often they sometimes explode.

Offering a full 10-year warranty, the heart of SuperTorque® 8Z is the high-performance nickel-zinc (NiZn) battery. Like other nickel-based batteries, NiZn is very stable and long-lived.

SuperTorque® 8Z is also the sustainable choice. Lifetime GHG emissions from NiZn batteries in SuperTorque® 8Z are 96% lower than for a comparable performance lead-acid battery.

Offering superb reliability, better than a 50% TCO advantage over lead-acid batteries and a vastly smaller environmental footprint, SuperTorque® 8Z is the overwhelming best choice for genset starting energy storage.

Long-life, super high-rate battery

Well proven in data center UPS, the super high-rate NiZn battery combines phenomenal high-rate performance with great endurance. The inherent advantage of NiZn technology is that battery voltage changes little with state of charge. Even at a low state of charge SuperTorque® 8Z still delivers powerful starting performance. In contrast, voltage of lead-acid batteries quickly drops too low to crank an engine, leaving most of the lead-acid battery’s capacity stranded in the battery.

Chart of ONE SuperTorque® 8Z cranking 70L diesel genset 13 times without recharge – still going strong at the end!

Embedded MicroGenius 2 charger

Inside SuperTorque® 8Z is a reliable SENS charger, optimized for NiZn charging. Factory installation means no separate charger installation or wiring. The charger accepts universal AC input (100-240 volts, 50 or 60 Hz) via either IEC 320 connector and cord or hardwired conduit.

More power in less space

A single 24-volt SuperTorque® 8Z system, the size of one 12-volt 8D battery, replaces up to four 8D lead-acid starting batteries and a premium charger.

Sizing considerations

The primary limit governing how big an engine one SuperTorque® 8Z will start is depth of voltage drop during the initial ~200 milliseconds “locked rotor” condition at the beginning of the crank cycle. Most engine control computers (ECU) on 24V systems tolerate voltages down to12 volts. Larger current draw at locked rotor reduces available voltage at the starter.

One 24-volt SuperTorque® 8Z will crank diesel engines with two starters up to 70 liters displacement. The number of starters is relevant. For any given displacement engine, more starter motors typically means higher current during the locked rotor condition.

SuperTorque® 8Z TCO advantage

Lead-acid batteries require regular maintenace and replacement every 1-3 years. The table below illustrates the significant financial benefit of SuperTorque® 8Z’s much longer life.

Assumptions:

• Lead-acid batteries modeled at $275 each.

• Labor for battery replacements based on $125/hour, 2-person team, four-hour job ($1000 total).

• Lead-acid battery maintenance includes check and water every six months. Assume 1 hour @ $125/hr ($250/year).

• The Ni-Zn battery is maintenance-free. It requires no electrolyte check or top-up.