Red Box RBL4000-28Twin Portable Battery Start Power Unit – 3000A Peak at 28V DC
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The Red Box RBL4000-28Twin is a twin lithium start power unit delivering a peak current of 8000A at 28V. Designed for starting piston, turboprop, or turbine aircraft and helicopters in remote locations, this unit is air transportable and maintenance-free.
Key Features
- Voltage: 28V DC
- Peak Amps: 8000A
- Battery Type: Lithium
- Weight: 51.1 lbs (23.2 kg)
- Included: Chargers (2), output cable, parallel joining cable, and thermal protection bags
Ideal for field operations requiring high power in a lightweight, portable format.
| General Information | |
|---|---|
| Part # | RBL4000-28TWIN |
| Manufacturer | Red Box |
| Spec Sheet 1 | View Spec Sheet |
| Shipping Information | |
|---|---|
| Product Weight (Piece 1) | 32 lbs. |
| Product Dimensions (Piece 1) | 17 x 15 x 6 in. |
| Product Weight (Piece 2) | 32 lbs. |
| Product Dimensions (Piece 2) | 17 x 15 x 6 in. |
| Product Weight (Piece 3) | 58 lbs. |
| Product Dimensions (Piece 3) | 37 x 26 x 29 in. |
| HTS | 8507600010 |
| ECCN | EAR99 |
| Hazmat/Dangerous Goods | Yes |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Fairchild/Dornier | Dornier 228-100/200 |
| Lockheed | C-130 |
| Pilatus | PC-24 |
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QUESTIONS & ANSWERS
Yes! The RBL4000-28Twin is designed to be fully air-transportable. This feature ensures that operators can move it quickly and efficiently between sites or carry it onboard aircraft to support remote operations. Its durable, weather-protected case and leakproof lithium cells contribute to its safety profile in transit.
This unit performs reliably in a wide range of operating temperatures, from -40°F to 140°F (-40°C to 60°C). Whether you’re supporting cold-weather aviation maintenance or working in high-heat environments, the RBL4000-28Twin provides consistent power without degradation. It’s a durable solution for harsh ramp and field conditions.
Yes, the cells within the RBL4000-28Twin are replaceable. This helps extend the operational life of the GPU while keeping long-term maintenance costs under control. The unit is also virtually maintenance-free under normal use conditions, offering a hassle-free power solution.
Absolutely! It includes two 4A electronic universal AC input chargers, allowing for fast and efficient recharging. The external charging setup also prolongs the unit's life by reducing internal stress on the lithium battery cells during charge cycles.
Yes! The unit features a 40A circuit breaker as part of its auxiliary protection system. This built-in safety mechanism prevents overloads during high-demand starts and protects both the GPU and the connected aircraft systems.
Yes. The digital voltage indicator is built to IP65 standards, offering strong resistance to dust and water. This means the readout remains clear and functional even in challenging outdoor or hangar conditions, supporting safe and accurate ground operations.
The RBL4000-28Twin features excellent charge retention, allowing it to stay powered for extended periods between uses. This is especially useful in emergency start scenarios or when stored at off-site locations where frequent recharging may not be possible.
Yes! A twin trolley system is available as an optional accessory, making it even easier to move and deploy the unit across large ramps or hangars. This mobility option is particularly useful for FBOs, military operations, and busy maintenance crews that require quick access to portable ground power.
