REAL SITUATIONS. REAL STAKES.

Five Moments Where It Matters.

A tow truck averages $150–$300 in the US. A stranded night costs more than that.

Extreme Cold  –30°F. Truck won't crank. Already late. Battery output collapses 30–50% in freezing temps — right when your V8 needs it most. Lithium starters take the same hit. BS400 doesn't. Supercapacitors don't follow the cold's rules. Same 1300A at –40°F as in your heated garage. 。 BS400: Full power. Any temperature. No excuses.

Dead Battery  Left all winter. Battery's done. No one around. Battery drained to near zero. Your lithium starter? You forgot to charge it before you left. BS400 charges from residual voltage in 3–10 minutes. No cables. No tow truck. No one to call at midnight. BS400: Works on near-dead batteries. Self-rescue in minutes.

Frequent Use Every start is wearing your battery down. Every cold crank pulls peak current from your battery — one start at a time. BS400 absorbs that spike every single time. That's what extends battery life up to 3×. BS400: Protects your battery on every start.

Road Trip 60 miles from nowhere. Battery quits. No signal. No nearby cars. Nearest help an hour away. BS400 charges from whatever's left in the battery and gets you moving. No external power ever needed. BS400: Self-sufficient. Always.

Aging Battery  It's failing. You just don't know it yet. Batteries don't send warnings. One morning — nothing. BS400's app monitors battery health at every connection. You'll know before it leaves you stranded at a grocery store at 9 PM. BS400: Know before it fails. Replace on your terms.

 

 

4TH-GEN TECHNOLOGY & SAFETY

Supercapacitor.
No Battery. No Compromise. No Risk.

Electrostatic storage — not chemical. Temperature-independent. Degradation-free.
Physics, not chemistry. And physics doesn't take days off.
Plus: no lithium cell inside means no thermal runaway risk sitting under your hood — ever.

 

 No Aging
Use #1 = Use #500,000
Zero capacity fade

No Drain
3mA/h standby
Less than your ECU at idle

No Risk
Zero lithium · Zero thermal runaway
Zero fire risk. Ever.

Why "No Lithium" Matters in Your Engine Bay · 
Engine bay temps reach 200°F+ in summer. Lithium cells become unstable above 140°F. BS400's supercapacitors are rated to 176°F — zero thermal runaway risk. That's why professionals won't permanently install a lithium starter under the hood.

 

 

SMART APP

Your Battery, Finally Has a Voice.

Every other jump starter gives you one light. Green means go. That's not peace of mind — that's guessing.
BS400 connects to a dedicated app. Full visibility. Before anything goes wrong.

 

01  All-in-One Control
Unified Dashboard
One interface. Every function. Charge level, health status, start mode — all in one place.
the full picture, instantly.

02 AI Learning System
Learns Your Vehicle
Analyzes your driving patterns and battery behavior over time. Optimizes output for your specific engine.
smarter every drive.

03 Battery Guardian
Smart Health Monitoring
Reads battery voltage and health at every connection. Tracks long-term decline before it becomes a problem.
24/7 guardian for your battery.

04 Anomaly Detection
Voltage Alert System
Sends low-voltage alerts before the battery leaves you stranded. Fix it before you're late to work.
warned before it happens.

05 Last Resort
Force-Start Mode
When standard output isn't enough — activate via app to push maximum available current. The last card in the deck.
there's always one more option.

06 Health Journal
24/7 Start Log
Every start logged — date, time, battery health at cranking. A complete history of your battery's life.
your battery's story, always on record.