Advanced Battery-Free Supercapacitor Technology for All-Condition Reliability
Safer in Extreme Heat | Faster Self-Charge | Longer Lifespan
For Fleets & Roadside Assistance
100% battery-free supercapacitor design. Zero chemical hazard. Safely leave it in your car year-round under extreme heat or cold.
Powered by 850F×5 capacitors. Recovers residual energy from weak batteries to fully recharge via EC8 clamps in 3 minutes.
Capacitors transfer physical charge without chemical reactions, delivering full 1500A output even in freezing -40°C blizzards or +70°C desert heat.
Designed for 12V automotive electrical systems, smoothly cranking Gasoline engines up to 6.8L and Diesel engines up to 5.7L.
Connect USB-C PD 140W input to turn SC25 into a smart 12V lead-acid charger with adjustable current from 2A to 10A. Easy top up drained automotive batteries anywhere.
Built-in protections against short circuit, overload, reverse polarity/connection, over-voltage, over-temperature, and over-current.
Engineered for over 100,000 deep charge/discharge cycles, lasting more than 5 times longer than standard lithium starter packs.
Take the guesswork out of emergency starts. The built-in high-definition screen shows the related technical data clearly.
Recharge in 3 minutes via EC8 car battery clamps or 4 minutes using the USB-C fast-charging port.
Fully charges in 3 mins directly from remaining power in the vehicle's battery.
Fully charges in 4 minutes (actual charging speed depends on the connected USB power source).
Standard options include red, gray, and silver. Custom color manufacturing supported for bulk commercial orders.
• SC25 Jump starter x 1
• EC8 Clips x 1
• USB-C cable x 1
• User manual x 1
• EVA case + Color Box packing x 1
| SPKSTAR Model No. | SC25 / SC25 Pro |
| Supercapacitor Capacity | 500F*5 for SC25, 850F*5 for SC25 Pro |
| Input | USB-C: Max. PD140W | EC8 Clips: 140W Max |
| Charging Time | 3 minutes from EC8 port and 4 minutes from the USB-C port (actual charging speed depends on the connected USB power source) for the first time. Consumes ~15%-20% power for one start and takes 1 minute for recharging to full. |
| Output |
Jump Start Mode: 12V Output, Peak Current 1000A (SC25), 1500A (SC25 Pro) Lead-Acid Battery Charger Mode: 12V (Adjustable current from 2A to 10A) |
| Output Power | 140W |
| Function | Jump starting cars, Charge for lead-acid batteries |
| Application | 6.8L Gasoline engine vehicles and 5.7L displacement diesel engine vehicles including cars, tractors, RVs, pickup trucks, and snowmobiles. |
| Cycle Life | 100,000 times |
| Ambient Operation Temperature | -40°C to +70°C (-40°F to +158°F) |
| Protections | Short circuit protection, Reverse connection protection, Overheating protection, Over-voltage protection, Over-current protection |
| Material | ABS + Aluminum alloy |
| Color | Standard: red, gray, silver (Customized colors supported for bulk orders) |
| Packing Details | Jump starter x 1, EC8 Clips x 1, USB-C cable x 1, User manual x 1 |
| Packaging | Standard: Neutral color box + EVA bag packaging (Custom packaging supported) |
Mode A: Auto Start Mode (Car Battery > 9V)
Connect EC8 clamps to battery (+ Red, - Black). Display: A beep, screen shows "EC8" & power. Press "START" to check voltage.
SC25 draws remaining power from the car battery to charge itself (takes 1–3 mins). Display: Beeps when full; screen displays "100%" and flashing "OUT".
Press your car ignition switch, the jump starter will automatically output 12V voltage 5s to start the car. Display: Screen beeps continuously with solid "OUT".
Disconnect clamps after engine starts. "OUT" indicator turns off.
Mode B: Manual Forced Start Mode (Car Battery < 9V)
Pre-charge SC25 via Type-C PD or EC8 from car battery to >90%. Display: screen displays "100%" with beep when full.
Connect clamps correctly. Press and hold "START" for 3s until 10s countdown finishes and "OUT" stays on.
Press car ignition within 30s. Display: "OUT" stays solid with a continuous beep as the engine starts.
Disconnect clamps from the battery. Screen indicator "OUT" turns off.
If the vehicle battery is below 5V, disconnect the car's positive cable and clamp the red cable directly onto the vehicle's terminal lead. Designed strictly for 12V systems. Allow 30 seconds interval between consecutive start attempts.