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SENFLY Boost T39: SENFLY T39 2-in-1 Car Battery Jump Starter Air Compressor 1600A 12V Portable Battery Booster (Up to 8.0L Gas/6.0L Diesel) 150PSI Tire Inflator with Auto Stop
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The SENFLY T39 is a high-performance 2-in-1 device combining a car jump starter and a tire inflator. Its standout features include the "Turbo Cooling Max" triple-fan cooling system and a futuristic, mecha-inspired design that appeals strongly to the high-end market.
Far more than just a stylish gadget, the T39 is a masterpiece of industrial design and engineering. It features a foldable handle for easy portability and packs a massive 71Wh battery and a large 25mm cylinder into a compact body. It delivers a peak current of 1600A, capable of jump-starting gasoline engines up to 8.0L and diesel engines up to 6.0L (up to 48 starts on a single charge). Meanwhile, the inflator delivers an airflow of 25 liters per minute, inflating a tire from 0 to 35 PSI in just 4.5 minutes. Unlike standard products that often overheat and throttle performance during prolonged use, the T39 operates with consistent stability.
Turbo Cooling Max: Why is the triple-fan design crucial?
Heat buildup often causes most combo jump starter-inflators to slow down or shut off automatically during operation. The T39’s Turbo Cooling Max system utilizes three high-speed fans to generate powerful airflow, rapidly dissipating heat from the inflator motor and battery pack. This enables superior continuous performance—you can inflate four tires in a row and immediately jump-start the vehicle without pausing for the device to cool down.
How fast is the 25L/min inflation speed?
It takes just 4.5 minutes to go from completely flat to 35 PSI, and less than 45 seconds to top up a low tire to standard pressure. Its 25mm cylinder pump vastly outperforms common 19mm mini-inflators, while the smart pressure sensor automatically stops inflation once the preset value is reached, eliminating the need to constantly monitor the gauge.
48 jump starts on a single charge. It features a built-in 19,200mAh high-discharge-rate lithium battery pack capable of delivering a 1,600A peak current; a single charge supports up to 48 jump-starts for engines up to 8.0L (gasoline) and 6.0L (diesel). The patented "10-in-1" smart battery clamps ensure a spark-free connection and include polarity protection. The digital display supports PSI, kPa, and bar units, allowing users to set a target tire pressure between 3 and 150 PSI.
Package List — T39 car jump starter, high-strength clamps, inflation hose, 4 nozzles, USB-C charging cable, and EVA carrying bag. 2-year warranty.
Specifications
| MODEL | T39 |
| STARTING CURRENT | 800A |
| PEAK CURRENT | 1600A |
| CAPACITY | 19200mAh/71Wh(High-discharge Lithium-ion) |
| LED LIGHT | Lighting/SOS/Strobe/Red warning |
| START CABLE CLAMP | Patented Ultra Smart Clamps (Anti-spark/Reverse Polarity etc. 10 in 1) |
| OUTPUT#1 | USB-A: 5V/3A | 9V/2A | 12V/1.5A |
| OUTPUT#2 | USB-A: 5V/3A | 9V/2A | 12V/1.5A |
| OUTPUT#3 | / |
| INPUT | Type-C QC18W (Full charge in 4 hours) |
| AIR COMPRESSOR | 150PSI Max / 25mm Cylinder (0-35 PSI in 4.5 mins) |
| OPERATION TEMPERATURE | -20°C to 60°C (-4°F to 140°F) |
| Housing Material | 94-V0 Fire-Retardant Heavy-Duty Shell |
| DIMENSION | 217*120*75mm |
| CUSTOMIZE OPTIONS | 37Wh|59.2Wh|71Wh |
Applications
● Multi-vehicle households — jump-start the SUV, then the sedan, then inflate all eight tires.
● Large-displacement engines — confident starts for 8.0L gas / 6.0L diesel trucks and SUVs.
● 31-inch tire duty — high-output airflow for off-road and light-truck tires.
● Roadside emergencies at night — digital display plus SOS and red warning light modes.
● Off-grid power — dual fast-charge USB ports for phones, tablets, and cameras.
● Hot-climate operation — triple-fan cooling sustains performance where others throttle.
Advantages
1. Turbo Cooling Max triple-fan system — continuous operation without overheating, a duty cycle rivals can't match.
2. 25mm cylinder with 25L/min airflow: 0–35 PSI in 4.5 minutes, top-offs in under 45 seconds.
3. Up to 48 jump starts per charge at 1600A peak (8.0L gas / 6.0L diesel).
4. Tank-like housing with foldable handle; 94-V0 fire-retardant shell for extreme conditions.
5. Patented 10-in-1 smart clamps with automatic error alarm — two-step foolproof starting.
6. Smart pressure dwell technology pauses and resumes at the setpoint for precise, hands-free inflation.
7. Top-tier cells deliver stronger discharge and greater safety than same-capacity generics.
8. 71Wh pack with three capacity options (37/59.2/71Wh) for tiered OEM programs.
FAQ
Q: Can the T39 inflate off-road or light-truck tires?
A: Yes. The pump is designed for tires up to 31 inches and delivers 25L/min — a flat tire reaches 35 PSI in about 4.5 minutes. It is rated to 150PSI maximum.
Q: How does the T39 differ from the T38?
A: Both are 1600A-class combos. The T39 is the performance flagship built around the Turbo Cooling Max triple-fan system and 25L/min airflow; the T38 emphasizes a foldable-handle design with an HD large screen and a bigger 74Wh pack option. Ask us which fits your channel better.
Q: What warranty and after-sales support comes with the T39?
A: The T39 carries a 2-year warranty. For B2B orders we offer either spare-unit percentages per order or a return-and-replace program through your next shipment after factory assessment.
1. How do I determine what specifications of product I need?
First, confirm the engine displacement of your or your main customer group's vehicles. Generally, higher displacement vehicles require a larger starting current, and battery capacity is positively correlated with starting current. Also, note that lithium batteries experience reduced activity in cold environments; therefore, in cold regions, even for small-displacement vehicles, it's best to use a larger capacity starting power supply.
2. Why do some manufacturers offer significantly larger battery capacities and starting currents for the same product size?
You need to know that current global battery technology still prioritizes energy density in relation to battery volume and weight. If the product you receive has an abnormally high peak current or capacity, be aware that it may be fraudulent. We are committed to providing genuine and high-quality products to our customers; this is our bottom line.
3. What kind of after-sales policy do we offer?
We offer two different after-sales policies to suit your needs: 1. We provide a certain percentage of extra products with each order for you to replace your customers' products; 2. We offer a 1-2 year after-sales guarantee. During this period, you need to collect the damaged products and send them back to the factory for our technicians to assess. If the damage is not caused by human error, we will resend the products with your next order.
4. What can I customize for the products?
We offer rich and flexible customization services. For standard product versions, you can choose battery capacity, product color, logo printing, customized outer packaging, cable clip specifications, customized product specification labels, and instruction manuals. If you need a more competitive product, you can choose a full ODM service. We provide free appearance design and 3D modeling. You only need to pay an additional mold fee to have your own custom molded product.
5. What certifications do our products support?
Our products can support almost any certification you need, such as: CE, FCC, 3C, UKCA, UL, PSE, BIS, RoHS, UN38.3, MSDS, TÜV, etc.
