The Lithium-Ion APU for Class 8 Sleepers
Power Through Your Rest Break
ZERO IDLE is a lithium-ion electric APU by Voltagen, engineered specifically for Class 8 sleeper trucks. Charged while you drive, it delivers up to 10 hours of cab power through your mandatory rest break — running your AC, appliances, and electronics without ever touching the main engine. For owner-operators and fleets alike, that means thousands saved annually in fuel and maintenance, with a system that pays for itself in under two years.
- Quiet, all-night A/C for 10+ hours — no engine idling and no noisy generator.
- Powers multiple 120V appliances at once, from fridges and TVs to gaming consoles and CPAP machines.
- Automatically charges while you drive — no special charging equipment required.
- Maintenance-free battery built to last the vehicle’s lifetime.
Upfit or retrofit your fleet and see a rapid ROI.
The cab drivers don’t want to leave.
A full night of quiet, climate-controlled rest with no idling, no fumes, and no diesel APU rattling away. Give your drivers the comfort that keeps them in the seat and makes your fleet the one they want to drive for.
Maximized Power, Maintenance-Free Reliability
One ZERO IDLE system offers energy storage equivalent to eleven 100-ah AGM batteries. At the push of a button, it delivers more storage for less weight and uses less space than a traditional APU.
Our maintenance-free battery is engineered to last the lifetime of your vehicle, providing exceptional performance your fleet can rely on.
A/C unit with 9,000 BTUs
6.9 kWh FLEX Storage Pack
415A 14V Alternator
3K Bi-directional DC-DC Converter
Regenerative Technology for Enhanced Runtime
With a traditional electric APU, once power depletes, it’s gone. ZERO IDLE’s regenerative technology offers exceptional longevity — powering multiple appliances simultaneously and regenerating as needed for peak performance. Charge your system while driving and experience even faster charging at high idle.
48V, 650W DC System
10% more runtime
No inversion to alternating current = ~10% energy savings
Rapid ROI
Invest in Ongoing Savings
ZERO IDLE systems can pay for themselves in under two years, enabling fleets to maximize their budget with impressive savings per truck.
Est. Annual Savings vs. Diesel APU
| Annual Maintenance Cost Savings | $1,500 |
| Annual Fuel Cost Savings | $2,400 |
| Estimated Annual Savings | $3,900 / Year |
Est. Annual Savings Idling Elimination
| Annual Maintenance Cost Savings | $1,500 |
| Annual Fuel Cost Savings ($4.00/Gal x 0.64 Gal/Hr x 10 Hrs x 240 Days) |
$6,100 |
| Engine / Vehicle Life Depreciation Savings from Eliminating Idling | $3,000 |
| Estimated Annual Savings | $10,600 / Year |
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Creating Value for Upfitters & Fleet Operators
Complete engineering support from a caring team.
Complete engineering and design services.
ISO 14001 certified, US-based manufacturing.
Exceptional post-sales and training support.
Exacting standards for technology and performance.
