Air Conditioner

ZeroRPM is driven by a passion to increase efficiency and reduce vehicle emissions.

AC unit

The ZeroRPM AC unit provides both engine-off AC though the factory vents and auxiliary energy to support the vehicle's chassis loads (lights, radios, computers) via internal lithium-iron batteries.

Engine-off accessory power
Lightweight technology
Small form factor
Safe Batteries
Safe Lithium-iron battery chemistry.
Durable metal construction
Battery Protection
Internal fuse and disconnect for battery protection.
Factory alternator charging
Shore power charging
Cooling Capacity11,800 BTU
Total Energy3.8 kWh
Usable Energy3.04 kWh
Current Limit Export Primary285A @ 100% Duty Cycle @ 12V
Current Limit Export Auxiliary285A @ 100% Duty Cycle @ 24V
Output Voltage Primary12V-14.1V
Output Voltage Auxiliary24V-28.2V
Charge Voltage12V-14.2V
Nominal Voltage Primary12.8V
Nominal Voltage Auxiliary25.6V
Battery ChemistryLithium Iron (LiFeMnPO4)
Number of 12V Battery Packs3
Internal Fuse Rating Battery Protection (Slow Blow) 350A
Product Housing MaterialPowder Coated Galvanized Steel with Aluminum Lid
Dimensions (inches)31.5" (W) x 11.5" (D) x 17" (H)
Weight194.0 lbs / 88 kg
Charging Temperature Range32F to 149F / 0C to 65C
Discharge Temperature Range-4F to 149F / -20C to 65C
A/C Fitting Sizes#8 Pressure / #10 Suction
Capable Freon TypesR-1234YF or R134a



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Innovative Company

Winner of the EDPA "imerge" Corporate Innovator of the Year.


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Utilizing ZeroRPM technology, Altec® Inc. wins The Work Truck Show® 2016 Green Award for Hybrid-Electric Jobsite Energy Management System

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