01
Reduces Deep Discharge
Voltage is less likely to drop into the danger zone, providing better plate protection
leagend SuperCap Jump Starter Series
Traditional Start Damages Your Battery.
leagend SuperCap Jump Starter
Changes
That.
The leagend SuperCap Jump Starter is a supercapacitor-based start assistance system that shares high-current load during engine cranking, helping reduce deep discharge, heat buildup, and sulfation of the battery, thereby significantly extending battery service life.
2-3x
Battery Life Extension
Note: Vehicle effects may vary and are not absolute figures.
95% of battery damage
occurs during start-up
occurs during start-up
Every ignition forces the battery to endure hundreds of amps of starting current. This is not just energy consumption — it is cumulative wear on battery life.
Why Batteries Die Prematurely
The Most Damaging Moment Is Those Few Seconds of Starting
Every start subjects the battery to a massive current surge. leagend SuperCap Jump Starter is designed to share this burden precisely at that critical moment.
Ignition Start
The starter motor demands hundreds of amps instantly; the battery must deliver far beyond its normal operating power
High-Current Surge
The battery bears the full load alone, with terminal voltage potentially dropping into a critical range
Heat & Sulfation
High current rapidly heats the battery internally; deep discharge accelerates sulfation, irreversibly damaging the plates
Lifespan Reduction
Repeated cumulative stress causes premature battery degradation. Studies indicate each start-up surge is a primary factor in battery aging
Core Operating Principle
leagend supercapacitor jump starter series Does Not Replace Your Battery —
It Reduces the Strain on It
During start-up, the leagend SuperCap Jump Starter rapidly delivers current to share the most damaging load from the battery. The supercapacitor's low internal resistance and high peak discharge capability make it an ideal start assistance device.
~70%
Starting current shared
by leagend supercapacitor jump starter series
The battery handles only ~30% of
the remaining load, significantly reducing stress
View current sharing technical principle
Note: Data sourced from leagend Laboratory
Voltage Stability Comparison
Less Voltage Sag Means Less Battery Damage
Conventional starting often dips into deep discharge territory; leagend supercapacitor jump starter series-assisted starting keeps voltage within a safer range, reducing plate damage and sulfation risk.
* Illustrative curves. Actual values vary by vehicle model, battery condition, and temperature.
Core Protection Logic
Three-Step Synergy to Reduce Battery Stress
leagend supercapacitor jump starter series is not a single-function product. It works through three interconnected stages to reduce each major factor of battery damage at the source.
~70%
Starting Current Sharing
leagend supercapacitor jump starter series shares approximately 70% of the starting current; the battery handles only the remaining ~30%, significantly reducing deep discharge and plate stress
→
~90%
Thermal Stress Reduction
Current reduced to 30% → heat generation drops to ~90% (P=I²R), substantially alleviating thermal aging pressure on the battery
→
2-3x
Extended Battery Life
Reduced deep discharge + lower heat + slower sulfation = battery life reliably extended by 2-3x
View technical derivation (I²R + Peukert)
I²R Heating Model: P = I²R. The battery's current drops from I to 0.3I, so P₂ = (0.3I)²R = 0.09 I²R — heat generation is approximately 90% of the original.
Peukert Effect: Under high-rate discharge, lead-acid battery life loss is not linearly proportional. With reduced starting current stress, the cumulative damage experienced by the battery is significantly lowered.
Five Protection Mechanisms
leagend supercapacitor jump starter series Protects Your Battery in Five Key Ways
With every start, five layers of protection work in unison to reduce each major cause of battery damage at the source.
02
Lowers Current Stress
The battery no longer bears the surge alone, resulting in smoother starts
03
Reduces Internal Heat
Thermal aging stress is significantly reduced, slowing battery degradation
04
Reduces Sulfation Risk
The battery maintains a healthier condition more easily
05
Enhanced Cold-Weather Starts
Fewer repeated attempts in cold weather, ensuring more reliable starting
Self-Assessment Checklist
Is leagend supercapacitor jump starter series Right for Your Vehicle? Answer These 6 Questions
Check the items that match your usage. The page will automatically provide a recommendation.
You can start by learning about leagend supercapacitor jump starter series
Few items selected. You can first learn about leagend supercapacitor jump starter series's working principles and compatibility.
App Visualization
Battery Status Shouldn't Be Left to Guesswork
Many drivers only realize their battery condition has deteriorated when starting becomes difficult. Paired with the App, the leagend SuperCap Jump Starter allows you to monitor battery voltage, start history, device status, and more — making the invisible state of your battery visible and accessible.
Voltage Status
Monitor battery voltage performance — no more guesswork
Start History
Review start-up process and device operation logs
Device Status
Check current leagend supercapacitor jump starter series status and relevant alerts
Trend Monitoring
Transform the battery from a black box into an observable vehicle component
* App interface illustration. Actual interface may differ from the released version.
Product Positioning
It's Not a Rescue Tool for Dead Batteries
A conventional jump starter helps once. leagend supercapacitor jump starter series helps reduce battery damage with every single start.
Conventional Emergency Jump Starter
Emergency Tool
- ✕ Used only after failure to start
- ✕ Stored in the trunk
- ✕ Temporary rescue device
- ✕ Addresses one start failure at a time
leagend SuperCap Jump Starter
Protection System
- ✓ Active during every start
- ✓ Permanently installed in the vehicle
- ✓ Long-term protection system
- ✓ Reduces damage from each start
Model Selection
Choose the leagend supercapacitor jump starter series Model for Your Vehicle Type
All models support 12V/24V systems. Select based on engine displacement, operating environment, and installation space.
| Product | Model | Applicable Vehicles | Voltage | Recommended Use |
|---|---|---|---|---|
|
JS200 | 12V Entry-level vehicles / up to 2.0 L | 12V |
|
|
JS300 Best Seller | Most 12V passenger vehicles / up to 3.5 L | 12V |
|
|
JS400 | Large displacement / Cold climate / High load / over 3.5 L | 12V |
|
|
JS600 | 24V commercial vehicles / Diesel / Heavy equipment |
24V |
|
Application Scenarios
leagend supercapacitor jump starter series Is Suitable for These Vehicles and Use Cases
From daily commuting to extreme environments, leagend supercapacitor jump starter series provides start protection for a wide range of vehicles.
Daily Commuting
Urban short-distance driving — reduces cumulative battery damage from frequent starts
Cold Regions
Starting is more difficult in low temperatures; leagend supercapacitor jump starter series ensures more reliable cold starts
Commercial Fleets
Reduces downtime caused by battery failure, lowering operational costs
Heavy Equipment
Diesel engines require high starting current; leagend supercapacitor jump starter series significantly reduces battery stress
Frequently Asked Questions
FAQ
Does leagend supercapacitor jump starter series replace the original vehicle battery?
No. The leagend SuperCap Jump Starter is a start assistance device that shares the high current during engine cranking. The original battery continues to handle vehicle power supply and energy storage.
Do I need leagend supercapacitor jump starter series with a new battery?
A new battery is in good condition and benefits even more from proactive protection. With less exposure to deep discharge, heat, and sulfation, its degradation rate will typically be slower over time.
Why does it extend battery life by 2-3x?
It redirects the most damaging starting surge away from the battery, reducing deep discharge, heat buildup, and sulfation. Over time, this cumulative protection naturally extends battery life.
Does leagend supercapacitor jump starter series drain the battery?
Under normal installation with a correctly matched model, leagend supercapacitor jump starter series is not a high-power continuous load. Specific standby performance should be confirmed based on vehicle model and installation configuration.
Is leagend supercapacitor jump starter series compatible with all vehicles?
Not all vehicles are directly compatible. The appropriate model must be confirmed based on voltage system, engine type, operating environment, and installation space.
Technical Basis & Notes
The mechanism descriptions on this page are based on: lead-acid battery high-rate discharge characteristics, the Peukert effect, the I²R heating model, the Arrhenius thermal aging model, and the supercapacitor's low internal resistance and high peak discharge capability.
The charts on this page are conceptual illustrations. Actual results may vary depending on vehicle model, battery condition, temperature, usage habits, and installation method.
Every Start, Less Damage to Your Battery
Confirm your vehicle type and use case, then choose the right leagend supercapacitor jump starter series model.