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SENFLY T28: Highway-Ready 1400A Booster with Built-In Red Warning Light
The best-looking booster in the lineup — mirror-finish panel, oversized display, red warning beacon built in.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The SENFLY T28 is a 1400A 12V jump starter that pairs highway-grade roadside safety with the most refined industrial design in our lineup. Its face is dominated by a large mirror-finish panel and an oversized high-contrast digital display, framed in brushed silver with precision bolt detailing. Alongside 37 starts per charge for engines up to 7.0L gas or 4.5L diesel, a four-mode LED system with a dedicated red warning light keeps a stopped vehicle visible at night, while the wide, low-profile body (228.6×105.4×46mm) sits stable on the road surface while you work.
The Best-Looking Booster We Have Ever Built
Most jump starters hide in the trunk because they look like tools. The T28 earns its place in the cabin: a full-face mirror-finish panel, an oversized digital display readable at arm-length, and a brushed-silver frame with precision bolt detailing give it the shelf presence of premium consumer electronics. For retailers, it photographs beautifully; for drivers, it is the emergency tool they are happy to keep in sight — which means it stays charged and within reach when it matters.
Being Seen Is Half the Survival
Most roadside fatalities involve secondary collisions — a stopped driver hit while working in the dark. The T28's red warning mode turns the unit into a beacon: place it behind your vehicle, and its 100-lumen red strobe marks your position while the flashlight mode lights your work. Four modes cover flashlight, SOS, strobe, and red warning.
Stable by Shape
The T28's wide, flat housing isn't an accident — it sits planted on asphalt, tailgates, and engine bays without tipping. Inside, a 16000mAh high-discharge pack delivers 1400A peak for up to 37 starts per charge, covering 7.0L gas and 4.5L diesel engines.
Road-Trip Power Bank
Between emergencies, dual USB ports with QC fast charge keep phones, cameras, and tablets alive, and a USB-C input refills the pack in about 3 hours. Patented 10-in-1 smart clamps make every start spark-free and polarity-safe.
Specifications
| MODEL | T28 |
| STARTING CURRENT | 700A |
| PEAK CURRENT | 1400A |
| CAPACITY | 16000mAh/59.2Wh(High-discharge Lithium-ion) |
| LED LIGHT | Lighting/SOS/Strobe/red warning |
| START CABLE CLAMP | Patented Ultra Smart Clamps (spark-proof/Reverse Polarity etc. 10 in 1) |
| OUTPUT#1 | USB-A: 5V/2.1A｜5V/3A|9V/2A｜12V/1.5A |
| OUTPUT#2 | USB-A: 5V/2.1A |
| OUTPUT#3 | / |
| INPUT | USB-C QC18W (Full charge in 3 hours) |
| AIR COMPRESSOR | / |
| OPERATION TEMPERATURE | -20°C to 60°C (-4°F to 140°F) |
| Housing Material | 94-V0 Fire-Retardant Heavy-Duty Shell |
| DIMENSION | 228.6*105.4*46mm |
| CUSTOMIZE OPTIONS | 37Wh|59.2Wh|74Wh |
Applications
● Nighttime highway breakdowns — red warning beacon plus work light in one device.
● Long road trips — 37 starts per charge for the whole convoy.
● RV and camper vans — wide-body stability on uneven ground, USB power at camp.
● Winter highway driving — reliable starts from -20°C.
● Family emergency kits — foolproof clamps and clear light modes for any driver.
● Ride-share and delivery drivers — visible, fast, self-sufficient roadside response.
Advantages
1. Four-mode LED with dedicated red warning light — a genuine visibility feature, not an afterthought.
2. Wide, tip-resistant 228.6×105.4×46mm body that stays put on road surfaces.
3. 1400A peak / 700A starting current covers 7.0L gas and 4.5L diesel; up to 37 starts per charge.
4. Patented 10-in-1 smart clamps; two-step start with automatic error alarm.
5. Dual USB outputs with QC fast charge; 3-hour USB-C recharge.
6. Three capacity options (37–74Wh) for channel price tiering.
7. 94-V0 fire-retardant shell; top-tier cells for stronger discharge and safety.
8. Full-face mirror-finish panel with oversized high-contrast display — the design flagship of the lineup, with premium shelf presence.
FAQ
Q: What is the red warning light for?
A: It makes a stopped vehicle visible to approaching traffic at night. Set the T28 behind your car and the red strobe marks your position — addressing the secondary-collision risk that makes roadside breakdowns dangerous.
Q: Is the T28 stable enough to sit on the road while I work?
A: Yes. The wide, low-profile housing is specifically shape-designed to resist tipping on asphalt, gravel, or a tailgate.
Q: What engine sizes does 1400A cover?
A: Gasoline engines up to 7.0L and diesels up to 4.5L — full-size sedans, SUVs, light trucks, and vans. Expect up to 37 starts per charge under typical conditions.
Q: Can I get the T28 with a bigger battery?
A: Yes — besides the standard 59.2Wh, 37Wh and 74Wh versions are available on the same platform for OEM programs.
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.
