Smarter Power, Less Waste
Our supercapacitor jump starter helps reduce deep-discharge stress on your car battery — with no battery inside, no chemical pollution, and less replacement waste.
Shop NowWhy is it more environmentally friendly?
Less Battery Stress
The starter takes over the heavy discharge load during ignition, so the car battery does less hard work.
Fewer Replacements
Longer battery life means fewer battery changes and less waste over time.
No Lithium Battery Inside
Supercapacitor design avoids battery-related chemical pollution and fire risk.
Why choose our products?
No Battery Inside
No lithium battery means no degradation, no swelling, and no replacement cycles.
Maintenance-Free
Forget charging and upkeep. Your jump starter is always ready when you need it.
Built to Last
Up to 500,000 charge cycles with stable performance over years of use.
Traditional vs. Supercapacitor — The Difference Is Clear
❌ Traditional
- ✗ Battery degrades over time
- ✗ Needs regular charging
- ✗ Can fail in extreme temperatures
- ✗ Short lifespan
✓ Supercapacitor
- ✓ No battery inside
- ✓ Self-ready, no maintenance
- ✓ Works in extreme conditions
- ✓ Long-lasting performance
Most Popular Choice
leagend JS300 On-Board SuperCap Jump Starter (Mid-Level Model)
- No battery, no upkeep
- Starts your car even at low voltage
- Designed for long-term reliability
- Works when traditional jump starters fail
Earth Day Special Offer · 20% Off for a Limited Time
More eco-friendly products
leagend JS200 On-Board SuperCap Jump Starter
Delivers 700A to start 12V batteries instantly, perfect for mainstream sedans
leagend JS400 On-Board SuperCap Jump Starter
1300A discharge current supports 12V batteries of large sedans
leagend JS600 On-Board SuperCap Jump Starter
1300A discharge for 24V batteries, suitable for trucks, large trucks, and buses below 8.0L/8.0T.
BA2000
BA2000, a 12V & 24V Lead-Acid Battery Tester with Built-In Printer, is a powerful diagnostic tool designed for testing lead-acid batteries.
Earth Day Limited Time Offer
Earth Day Special Offer
All products are eco-friendly
Limited-time sale!
Time remaining until the event ends:
FAQS
Stop Replacing. Start Upgrading
Choose a safer, smarter, and longer-lasting way to start your car.
Shop SuperCap Now