Wholesale SPKSTAR 12V 1500A Supercapacitor Car Battery Charger Jump Starter Vendor, Quotation

Battery-free supercapacitor jump starter with 1500A peak current, PD 140W fast charge,  10A lead-acid battery charger for 12V 6.8L Gasoline / 5.7L diesel cars.

Product Description

Key Features & Breakthroughs

Advanced Battery-Free Supercapacitor Technology for All-Condition Reliability

Battery-Free Supercapacitor Jump Starter
New Jump Starter Technology

Battery-Free Supercapacitor Jump Starter

Safer in Extreme Heat | Faster Self-Charge | Longer Lifespan

For Fleets & Roadside Assistance
Battery-Free Supercapacitor Design

Battery-Free Supercapacitor Design

100% battery-free supercapacitor design. Zero chemical hazard. Safely leave it in your car year-round under extreme heat or cold.

Maintenance-Free & Instant Charging

Maintenance-Free & Instant Charging

Powered by 850F×5 capacitors. Recovers residual energy from weak batteries to fully recharge via EC8 clamps in 3 minutes.

Extreme All-Weather Operation

Extreme All-Weather Operation

Capacitors transfer physical charge without chemical reactions, delivering full 1500A output even in freezing -40°C blizzards or +70°C desert heat.

Wide 12V Vehicle Compatibility

Wide 12V Vehicle Compatibility

Designed for 12V automotive electrical systems, smoothly cranking Gasoline engines up to 6.8L and Diesel engines up to 5.7L.

Built-in 2A-10A Lead-Acid Battery Charger

Built-in 2A-10A Lead-Acid Charger

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.

Comprehensive Multi-Protection

Comprehensive Multi-Protection

Built-in protections against short circuit, overload, reverse polarity/connection, over-voltage, over-temperature, and over-current.

10-Year Ultra-Long Lifespan

10-Year Ultra-Long Lifespan

Engineered for over 100,000 deep charge/discharge cycles, lasting more than 5 times longer than standard lithium starter packs.

Intuitive Real-Time Digital Display

Intuitive Real-Time Digital Display

Take the guesswork out of emergency starts. The built-in high-definition screen shows the related technical data clearly.

Dual Fast Charging Options

Recharge in 3 minutes via EC8 car battery clamps or 4 minutes using the USB-C fast-charging port.

EC8 Clamps Charging

EC8 Clamps Charging

Fully charges in 3 mins directly from remaining power in the vehicle's battery.

USB-C Port Charging

USB-C Port Charging

Fully charges in 4 minutes (actual charging speed depends on the connected USB power source).

Custom Aluminum Shell Color Options

Custom Aluminum Shell Color Options

Standard options include red, gray, and silver. Custom color manufacturing supported for bulk commercial orders.

Package Includes

Package Includes

• 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

Technical Specifications

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)

Step-by-Step Jump Start Operation Guide

Mode A: Auto Start Mode (Car Battery > 9V)

1

Step 1: Connect

Mode A Step 1

Connect EC8 clamps to battery (+ Red, - Black). Display: A beep, screen shows "EC8" & power. Press "START" to check voltage.

2

Step 2: Auto-Charge

Mode A Step 2

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".

3

Step 3: Start

Mode A Step 3

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".

4

Step 4: Remove

Mode A Step 4

Disconnect clamps after engine starts. "OUT" indicator turns off.

Mode B: Manual Forced Start Mode (Car Battery < 9V)

1

Step 1: Pre-Charge

Mode B Step 1

Pre-charge SC25 via Type-C PD or EC8 from car battery to >90%. Display: screen displays "100%" with beep when full.

2

Step 2: Connect & Activate

Mode B Step 2

Connect clamps correctly. Press and hold "START" for 3s until 10s countdown finishes and "OUT" stays on.

3

Step 3: Start

Mode B Step 3

Press car ignition within 30s. Display: "OUT" stays solid with a continuous beep as the engine starts.

4

Step 4: Remove

Mode B Step 4

Disconnect clamps from the battery. Screen indicator "OUT" turns off.

⚠️ Pro-Tip / Safety Notice

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.

Product Video

Frequently Asked Questions

Q1: How can the SC25 start large engines up to 6.8L Gas / 5.7L Diesel without a battery?
SC25 is built with five heavy-duty 850F supercapacitors. Instead of storing energy chemically like lithium batteries, capacitors store energy electrostatically and can discharge up to 1500A instantly, providing the massive cranking amp required to turn over large 6.8L gasoline or 5.7L diesel V8/V6 engines.
Q2: How does it charge itself from a dead car battery?
Even when a car battery lacks the power to start an engine, it usually retains residual micro-energy (above 9V). SC25 draws this low voltage over 1–3 minutes, boosts and stores it in its 850F×5 capacitor array, and releases it all at once when you hit the ignition.
Q3: What if my car battery is completely dead (below 5V)?
For deeply discharged batteries under 5V, pre-charge the SC25 beforehand using a USB-C PD charger (takes 2-3 mins with high-wattage PD chargers) or another vehicle's car battery. Connect it to your car and press the "START" button for 3 seconds to activate Manual Forced Mode.
Q4: Can I leave the SC25 in my car during extreme summer or winter?
Yes! Unlike lithium battery jump starters that lose power in winter or risk thermal runaway / explosion in summer heat, supercapacitors contain no chemical battery liquids. It safely withstands temperatures from -40°C up to +70°C without any maintenance or self-discharge concerns.
Q5: How does the built-in lead-acid battery charger function work?
When connected to a USB-C PD 140W power supply, the SC25 functions as a smart 12V battery charger with adjustable output currents from 2A to 10A, allowing you to safely recover and top up depleted automotive lead-acid batteries anywhere.
Q6: What is the operational lifespan of the supercapacitor starter?
Engineered for ultra-long durability, the unit delivers over 100,000 charge/discharge cycles and a service lifespan exceeding 10 years—lasting more than 5 times longer than conventional lithium jump starters without regular scheduled maintenance.

Related Products