SENFLY 2026 New T55 Car Jump Starter 600A 12V Portable Battery Booster Up to 4.0L Gas Diesel Engine.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The SENFLY T55 is the smallest jump starter in our lineup — a 600A, 12V booster measuring just 160×82×42mm, new for 2026. Despite the pocket size, it starts gas engines up to 4.0L (2.0L diesel) up to 20 times per charge, and engineers still fit a dual-module LED system with six lighting modes inside. It is the emergency starter for drivers who refuse to carry bulk.
How Small Is "Pocket Size" for a Jump Starter?
160×82×42mm — a footprint smaller than most smartphones laid flat. The 2026 T55 achieves it through high-precision molding and assembly, so the compact body still feels dense and robust in hand. It lives in a jacket pocket, a motorcycle tail bag, or the smallest glove box.
Small Body, Full Safety System
Mini size did not mean cutting protection. The T55 carries the same patented 10-in-1 smart clamps as our flagship models — spark-proof, reverse-polarity, short-circuit and more — plus two-step starting that beginners get right on the first try. The 94-V0 fire-retardant shell survives drops and splashes.
Two Lights, Six Modes, Zero Bulk
A focused spotlight and a wide floodlight — six modes total, including SOS and red warning — are integrated where most minis offer a single weak LED. Add QC18W USB-C recharging in 3 hours and dual USB outputs, and the T55 covers light, power, and starting in one pocketable unit.





Specifications
| MODEL | T55 |
| STARTING CURRENT | 300A |
| PEAK CURRENT | 600A |
| CAPACITY | 8000mAh/29.6Wh(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/3A |
| 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 | 160*82*42mm |
| CUSTOMIZE OPTIONS | 29.6Wh|37Wh|59.2Wh|74Wh |
Applications
● Motorcycle touring — tail-bag size with real starting power for bikes and ATVs.
● First cars and student drivers — affordable, pocketable, mistake-proof.
● Minimalist EDC kits — one unit for starting, lighting, and phone charging.
● City cars and kei cars — 4.0L gas coverage handles every compact on the road.
● Night repairs — spotlight plus floodlight, six modes, red warning included.
● Emergency gift programs — small size, low cost, universal usefulness.
Advantages
1. The smallest body in the Senfly lineup: 160×82×42mm, pocket- and tail-bag-friendly.
2. 2026-precision molding delivers a dense, premium feel despite the mini size.
3. Dual-module LED (spotlight + floodlight) with 6 modes — rare at this size.
4. 600A peak starts 4.0L gas / 2.0L diesel engines, up to 20 times per charge.
5. Patented 10-in-1 smart clamps with two-step foolproof start.
6. Four capacity options (29.6–74Wh) let buyers scale runtime on the same mini platform.
7. 94-V0 fire-retardant shell; top-tier cells for stronger discharge and safety.
FAQ
Q: Is something this small really able to start a car?
A: Yes. The T55's high-discharge lithium cells deliver 600A peak / 300A starting current — enough for gas engines up to 4.0L and diesels up to 2.0L, covering compact cars, sedans, motorcycles, and ATVs, up to 20 starts per charge.
Q: Who is the T55 designed for?
A: Drivers who won't carry a bulky booster: motorcyclists, first-car owners, city commuters, and minimalists. It also works well as a high-value gift or promo item because of its size and price.
Q: Does the small size mean weaker lighting?
A: No. The T55 integrates a dual-module system — spotlight plus floodlight — with six modes including SOS and red warning, unusual for a unit this compact.
Q: Can I order higher capacity in the same mini body?
A: Yes. Beyond the standard 29.6Wh pack, 37Wh, 59.2Wh, and 74Wh options are available for OEM programs that want longer runtime or more jump starts.
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.