$3,950.00 (price excluding tax)
THERON TURRBARY® GROUP 31 is a heavy-duty, solid-state permanent magnetic generator battery engineered to permanently replace lead-acid and AGM batteries in Class 8 commercial trucks and heavy fleets. Built inside a standard BCI Group 31 enclosure with 3/8″-16 threaded studs, it delivers continuous 12.8V power, 1,000+ CCA cranking performance, and an autonomous 100-year operating life with zero chemical degradation, zero acid, and zero maintenance. Made in the USA.
Description
The THERON TURRBARY® GROUP 31 is a commercial-grade, solid-state permanent magnetic generator battery engineered as a direct drop-in replacement for standard electrochemical BCI Group 31 commercial truck batteries. Designed specifically for Class 8 heavy-duty freight tractors, refrigerated transport, municipal fleets, and industrial equipment, the TURRBARY® replaces degrading chemical storage with continuous magnetic flux generation—delivering a maintenance-free, 100-year operational envelope.
Key Operational Advantages
- 100-Year Autonomous Operating Life: Eliminates recurring 2-to-3-year battery replacement cycles and costly roadside dead-crank service calls ($1,200+ per event).
- Zero Electrochemical Degradation: Powered by an internal multi-pole N52 sintered NdFeB magnetic turbine array. Contains no sulfuric acid, lead plates, lithium, or caustic electrolyte. Zero risk of thermal runaway, freezing, or sulfation.
- Instant High-Torque Cranking: Delivers instantaneous 1,000+ CCA-equivalent cranking surge to fire 15-liter commercial diesel engines in extreme conditions (-40°F to 140°F).
- Flat Bus Voltage Stability: Maintains a continuous 12.8V to 14.4V baseline output under continuous parasitic cab loads, APU systems, and telematics without engine idling.
- Hermetic Shock & Vibration Isolation: Precision-machined 6061-T6 billet and composite enclosure isolates the internal magnetic core from extreme highway road shock and frame-rail vibration (MIL-STD-810H / SAE J930 compliant).
- 100% Domestic Supply Chain: Manufactured in the USA across Ohio and Florida facilities. Fully compliant with Buy American Act (BAA) and NDAA defense logistics mandates.
Technical Specifications
- BCI Enclosure Group: Standard Group 31 (13.00″ L × 6.80″ W × 9.40″ H / 330 mm × 173 mm × 240 mm)
- Terminal Hardware: Heavy-duty 3/8″-16 stainless steel threaded studs
- Nominal Bus Output: 12.8V – 14.2V DC Continuous
- Peak Inrush / Cold Cranking: > 1,000A transient burst module
- Internal Core: Multi-pole axial flux permanent magnetic generator with dual vacuum-sealed, zero-friction bearing races
- Operating Temperature Range: -40°F to 140°F (-40°C to 60°C)
- Mounting Compatibility: Standard Class 8 3-pack and 4-pack frame-rail battery boxes (Freightliner, Peterbilt, Kenworth, Volvo, Mack, International)
Additional information
| Weight | 9.40 lbs |
|---|---|
| Dimensions | 13.00 × 6.80 × 9.40 in |
| TURRBARY GROUP 31 | Standard Group 31 dimensions |


