High starting output and dual-cylinder inflation in one portable roadside power solution.
The BoltPower B33 is a heavy-duty 12V jump starter with a built-in dual-cylinder air compressor. It delivers 1500A starting current and 3000A peak current, supports up to 8.5L gasoline and 7.5L diesel engines, and provides a maximum inflation pressure of 160 PSI.
3000A
Peak Current
1500A
Starting Current
Dual 25 mm
Air Cylinders
160 PSI
Maximum Pressure
3000A Peak Current for Larger Engine Applications
The B33 is designed for projects that require more starting capability than a standard compact jump starter.
With 1500A starting current and 3000A peak current, it supports compatible 12V gasoline engines up to 8.5L and diesel engines up to 7.5L.
Key Starting Specifications
| Specification | B33 |
| Starting Current | 1500A |
| Peak Current | 3000A |
| Gasoline Engine | Up to 8.5L |
| Diesel Engine | Up to 7.5L |
| Battery Energy | 74Wh |
| Rated Voltage | 14.8V |
Roadside Starting and Tire Inflation in One Platform
The B33 combines two core roadside functions in a single portable device.
It can provide emergency jump-starting power when a vehicle battery cannot start the engine, while the integrated air compressor allows users to check tire pressure and inflate tires without carrying a separate inflator.
Additional USB output and integrated lighting extend the product for roadside emergency use.
Dual 25 mm Cylinders for Higher-Volume Inflation
One of the key differences of the B33 is its dual 25 mm cylinder air compressor.The dual-cylinder configuration is designed to support higher-volume tire inflation for larger vehicle applications, while the maximum pressure setting reaches 160 PSI. The compressor system also includes pressure detection, active cooling and temperature protection.
0–36 PSI in Under 3 Minutes
Under the confirmed test condition, the B33 can inflate a:
195/60 R15 Tire
0 PSI
↓
36 PSI< 3 min
Inflation performance measured using the specified 195/60 R15 tire test condition.
Five Inflation Modes for Different Applications
The B33 includes dedicated pressure modes for common inflation tasks.
| Mode | Default Pressure | Adjustable Range |
| Car | 36 PSI | 26–50 PSI |
| Motorcycle | 35 PSI | 26–50 PSI |
| Bicycle | 45 PSI | 30–150 PSI |
| Ball | 8 PSI | 4–16 PSI |
| Free Mode | 36 PSI | 3–160 PSI |
The display supports four pressure units:
PSI / BAR / KPA / kg/cm²Free Mode stores the previously selected pressure setting, while the preset vehicle and sports modes return to their default settings after restarting or switching modes.
Set the Target Pressure and Let the System Stop Automatically
The B33 monitors tire pressure in real time during inflation.
When the measured pressure reaches the selected target pressure, the compressor automatically stops.The system also includes timeout protection for abnormal inflation conditions. If pressure remains at zero or does not increase for an extended period, the compressor stops and displays an error indication.
Clear Controls for Starting, Inflation and Emergency Functions
The B33 control panel provides direct access to the main inflation and emergency functions.
Users can view and control:
- Battery level
- Current pressure
- Inflation mode
- Pressure unit
- Target pressure
- USB output status
- LED lighting modes
The + and – buttons adjust the target pressure, while the M button switches inflation modes and pressure units.
The front display uses a digital interface and shows inflation mode, pressure value, pressure unit and battery status.
Backup Power for Mobile Devices
The B33 includes a 5V / 2.4A USB-A output for compatible phones and other USB-powered devices.
USB-C charging input supports:
5V / 3A, 9V / 2A, 12V / 1.5A
Area Light and Spotlight for Roadside Use
The B33 includes two different lighting functions:
LED Area Light: for wider nearby illumination
LED Spotlight: for more directional lighting.
The lighting system also supports: SOS Mode、Warning Mode
Multiple Protection for Roadside Operation
The B33 includes protection functions for both the battery system and air compressor.
Power Protection
- Overcharge protection
- Overdischarge protection
- Overcurrent protection
- Short-circuit protection
- Low-voltage protection
- Charging temperature protection
- Discharging temperature protection
Air Compressor Protection
- Motor short-circuit protection
- Motor overload protection
- Compressor temperature protection
- Pressure sensor error detection
Inflation timeout protection
OEM/ODM Heavy Duty Jump Starter with Air Compressor
BoltPower supplies the B33 for OEM, ODM and private-label jump starter projects.
The product platform can be adapted to different brand and market requirements through customizable appearance and packaging options.
Customization Options
Brand Logo, Housing Color, Panel Graphics, Packaging, User ManualAccessories Configuration
Typical Applications
Large Cars and SUVs
Higher starting output for larger compatible gasoline and diesel engines.
Pickup and Utility Vehicles
Portable roadside starting and tire inflation for demanding vehicle applications.
Tire Inflation
Dual-cylinder inflation with pressure monitoring and preset auto-stop.
Emergency Roadside Power
USB charging, area lighting, spotlight, SOS and warning functions in one device.
B33 Technical Specifications
| Specification | B33 |
| Product Type | Heavy Duty Jump Starter with Air Compressor |
| Battery Energy | 74Wh |
| Rated Voltage | 14.8V |
| Starting Current | 1500A |
| Peak Current | 3000A |
| Engine Compatibility | Up to 8.5L Gasoline / 7.5L Diesel |
| USB-C Input | 5V/3A, 9V/2A, 12V/1.5A |
| USB-A Output | 5V/2.4A |
| Air Compressor | Dual 25 mm Cylinders |
| Maximum Pressure | 160 PSI |
| Inflation Test | 195/60 R15, 0–36 PSI, <3 min |
| Pressure Detection | Yes |
| Auto Stop at Preset Pressure | Yes |
| Inflation Modes | Car / Motorcycle / Bicycle / Ball / Free |
| Pressure Units | PSI / BAR / KPA / kg/cm² |
| Lighting | Area Light / Spotlight / SOS / Warning |
| Pass-Through Charging | No |
| Dimensions | Approx. 224.5 × 114 × 83 mm |
| OEM/ODM | Available |
Frequently Asked Questions
What makes the B33 a heavy duty jump starter?
The B33 combines 1500A starting current, 3000A peak current, support for engines up to 8.5L gasoline / 7.5L diesel, and a built-in dual-cylinder air compressor for tire inflation.
What does 3000A mean on the B33?
3000A refers to the peak current. The B33 starting current is 1500A.
What engine sizes can the B33 support?
The B33 supports compatible 12V gasoline engines up to 8.5L and diesel engines up to 7.5L.
How fast can the B33 inflate a tire?
Under the confirmed test condition, the B33 can inflate a 195/60 R15 tire from 0 to 36 PSI in under 3 minutes.
What type of air compressor does the B33 use?
The B33 uses a dual 25 mm cylinder air compressor with a maximum pressure setting of 160 PSI.
Does the B33 stop inflation automatically?
Yes. When the measured pressure reaches the selected target pressure, the compressor stops automatically.
Can the B33 display the current tire pressure?
Yes. When the inflation hose is connected in inflation mode, the display shows the current measured pressure.
Which inflation modes are available?
The B33 supports car, motorcycle, bicycle, ball and free inflation modes.
Which pressure units are supported?
The digital display supports PSI, BAR, KPA and kg/cm².
Does the B33 include emergency lighting?
Yes. The B33 includes an area light, spotlight, SOS mode and warning mode.
Can the B33 charge a mobile phone?
Yes. The B33 provides a 5V / 2.4A USB-A output for compatible USB-powered devices.
Is OEM/ODM customization available?
Yes. The B33 can be supplied for OEM/ODM projects with customizable branding, housing colors, product graphics, packaging and user manuals.
