Ultra-safe supercapacitor design eliminates lithium battery hazards, preventing fire or explosion while maintaining reliable car starts without maintenance.
Simply connect clamps to your vehicle's battery. The device charges automatically and is ready to jump-start the engine in just 3 minutes.
1000A large peak current, suitable for all gasoline vehicles and up to 4.0L diesel engines, including cars, trucks, motorcycles, tractors, RVs, lawnmowers, and snowmobiles.
Complete safety features against short circuits, overloads, reverse polarity/connection, over-voltage, overcharging, and extreme thermal conditions.
Operates reliably in harsh weather conditions ranging from -40℃ to +70℃, ensuring instant engine starts during freezing winters or scorching summers.
Designed for over 100,000 charge/discharge cycles. Service life up to 10 years, which is 5 times longer than ordinary lithium jump starters.
Clear display of charge level, operating modes, and device status.
Functions both as an emergency car jump starter and an efficient charger for standard 12V lead-acid batteries.
Quick charge from a car battery via EC8 clamps (3 min), from a car cigarette lighter via DC port (4 min), or from a power bank / wall outlet via USB-C (4-30 min).
Fully charges in 3 mins
Fully charges in 4 mins
Fully charges in 4 minutes or longer (actual charging speed depends on the connected USB power source)
Detailed technical specifications of SC12 Supercapacitor Jump Starter
| SPKSTAR Model no. | SC12 |
| Supercapacitor Capacity | 500F * 5 |
| Input |
Type-C: 5V / QC30W / PD100W DC Input (Car Charger): 12V 5A EC8 Clips Input: 6-12V |
| Charging Time | 3 minutes through EC8 Clips charging, 4 minutes via DC port charging, 4 minutes or longer via Type-C port charging (actual charging speed depends on the power output of the connected USB power source) |
| Output |
Initiating mode: 12VDC (14.5V max), start-up current: 1000A, peak current: 1000A Lead-acid battery charging mode: 2000mA |
| Output Power | 45W |
| Function |
Jump starting cars Charge for lead-acid batteries |
| Application | 5.7L Gasoline engine vehicles and 4.0L displacement diesel engine vehicles including cars, tractors, motorcycles, recreational vehicles, pickup trucks, lawnmowers, snowmobiles etc. |
| 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 | PC + ABS |
| Color |
Standard color: gray, red, orange Customized color can be supported for bulk orders |
| Packing Details |
Jump starter x 1 EC8 Clips x 1 USB-C to USB-C cable x 1 1m wire car charger (DC) x 1 User manual x 1 |
| Packaging |
Standard: Neutral packaging or EVA bags packing Custom packaging can be supported |
Easy-to-use modes designed for fast and safe ignition
Connect EC8 clips to the car battery. Device auto-charges until the "OUT" icon stops flashing. Press the ignition switch to automatically start the car.
Charge to 90%+ via USB-C or DC port. Connect clamps to battery, hold button for 3s to activate force start mode, and start your car within 30s.
No harm to the vehicle, no wiring modification, even beginners with zero experience can install, long-term protection for battery health.
Connect the EC8 clips cable to the jump starter and open the car engine compartment.
Connect the clamps to the car battery: Red to the positive terminal and black to the negative terminal.
≥90% charge: Hold power button 3s for force‑start, start car within 30s.
Lower charge: It self‑charges (full in 3 mins). When OUT light flashes, turn ignition on for auto‑start within 30s.
Remove the clamps and close the car engine compartment.
Watch how the supercapacitor emergency jump starter works in real time
Battery certificates and reports to meet safety and shipping demands
Common questions about using and maintaining the SC12 supercapacitor jump starter
1. Check whether the positive and negative connections are correct and firmly attached.
2. Check if the battery is faulty. Check the battery voltage on the SC12 display screen. If the voltage is below 5V, the battery may be completely damaged. The engine can start normally as long as the battery voltage exceeds 5V. If the battery is lower than 5V, replacement is recommended.
The supercapacitor model uses residual power from your vehicle's weak battery to recharge and start instantly within minutes. Each start consumes about 20% power. After a 30-second ignition interval, it only takes roughly 1 minute of charging to be ready for another ignition attempt.
No regular maintenance or pre-charging is required. Unlike lithium-ion battery jump starters that slowly discharge and require recharging every few months, supercapacitor starters can be stored safely in your glove compartment for years without maintenance and charge from the weak battery on the spot.
With a peak current of 1000A, the SC12 supports up to 5.7L gasoline engines and up to 4.0L diesel engines. It is universally compatible with standard 12V cars, SUVs, pickup trucks, motorcycles, tractors, RVs, lawnmowers, and snowmobiles.
Yes. Thanks to capacitor-based physics instead of chemical lithium reactions, the SC12 functions safely and reliably across extreme temperatures from -40°C to +70°C (-40°F to +158°F), completely eliminating swelling, fire, and explosion risks.
Yes. The SC12 features a dual-purpose design. Beyond emergency jump-starting, it includes a 2000mA charging mode specifically engineered for replenishing standard 12V lead-acid batteries.