ANCEL BS300 Super Starter 1000A Supercapacitor for 3.5L/3.0T

ANCEL BS300——Balanced Performance Battery Guardian

BS300 — Permanently Mounted Battery Protection System
Always Connected. Always Ready. Never Stranded.

Most jump starters live in your trunk.
They collect dust — until the day they're dead too.

BS300 lives under your hood.
Working every start. Every day. Before anything goes wrong.

WHY TRADITIONAL JUMP STARTERS FAIL

The Tool You're Counting On
Might Not Be There When You Need It.

Traditional jump starters were designed for emergencies.
BS300 was designed to prevent them.

TRADITIONAL JUMP STARTER  |  BS300 BATTERY GUARDIAN

Stored in trunk                        |  Permanently installed under hood
Needs recharging                   |  Always connected
Self-discharges on shelf          |  3mA standby — never dies
Lithium battery aging             |  500,000-cycle supercapacitor
Fails in cold weather               |  Full output at –40°F
Dead when needed most       |  Always ready
Emergency rescue tool           |  Proactive guardian system

The difference isn't just the technology.
It's the entire philosophy of how a starting system should work.

BATTERY GUARDIAN SYSTEM

BS300 Doesn't Wait for Your Battery to Fail.
It Makes Sure It Doesn't.

Every start. Every day. Silent protection — working in the background.

01 | ABSORBS CRANKING LOAD
Every ignition, BS300 steps in first — absorbing the full peak
cranking current before it reaches your main battery.
Your battery never takes the hardest hit.

02 | REDUCES BATTERY STRESS
Peak cranking is the single greatest cause of battery degradation.
BS300 eliminates that stress — every single start,
for the life of the vehicle.

03 | EXTENDS BATTERY LIFE UP TO 3×
Less stress per start means measurably longer battery life.
Not a marketing claim — a direct result of reduced peak load
on every ignition.

04 | MONITORS BATTERY HEALTH
BS300 reads your battery's real-time voltage and health status
at every connection — building a picture of long-term decline
before it becomes a problem.

05 | PREVENTS UNEXPECTED FAILURE
Batteries don't send warnings. BS300 does.
Low-voltage alerts. Health trend notifications.
You'll know before the morning it won't start.

24/7 APP MONITORING

Your Battery Finally Has a Voice.

Most starters give you one light. Green means go.
That's not intelligence. That's guessing.
BS300 gives you the full picture —
before, during, and after every start.

01 | REAL-TIME VOLTAGE
Live battery voltage on your screen — not a 3-bar LED estimate.
Know exactly what you're working with before every start.
Peace of mind: you know it's ready before you walk to the car.

02 | BATTERY HEALTH MONITORING
Tracks long-term voltage trends and health degradation.
Your battery's life story — logged automatically, reviewed anytime.
Peace of mind: 24/7 guardian for your battery.

03 | ANOMALY ALERTS
Low-voltage push notifications to your phone.
Fix the problem before you're stranded — not after.
Peace of mind: warned before it happens.

04 | START HISTORY LOG
Every ignition logged — date, time, battery condition at start.
A complete record that tells you when to replace the battery.
Peace of mind: your battery's story, always on record.

05 | FORCE-START MODE
When standard output isn't enough — activate maximum available
current directly from the app.
The last line of defense, when everything else has failed.
Peace of mind: there's always one more option.

06 | AI SMART LEARNING
Analyzes your driving patterns and battery behavior over time.
Optimizes startup output for your specific vehicle and usage.
Peace of mind: smarter every drive.

iOS & Android · BLE 5.3 · No account required · Free download

SUPERCAPACITOR VS LITHIUM

This Is Why BS300 Costs More.
And Why It's Worth Every Dollar.

You're not paying for a bigger battery.
You're paying to eliminate the battery entirely.

LITHIUM JUMP STARTER              |  BS300 SUPERCAPACITOR
Swelling risk in heat                     |  No swelling. Ever.
Thermal runaway risk                   |  Zero thermal runaway
Battery aging — capacity fade     |  500,000 cycles — zero degradation
Fails below freezing                      |  Full output at –40°F
Heat sensitive above 140°F          |  Rated to 176°F
Needs regular recharging             |  Always connected — always ready
Emergency use only                      |  Daily protection system

Supercapacitors store energy electrostatically — not chemically.
Physics doesn't age. Physics doesn't swell.
Physics doesn't take days off.

PERMANENT UNDER-HOOD INSTALLATION

Built to Live Under Your Hood.
Not Visit It.

BS300 isn't a tool you grab from the trunk when things go wrong.
It's a system that's already working — before things ever go wrong.

ALWAYS CONNECTED
Wired directly to your vehicle's electrical system.
3mA standby draw — less than your car's own ECU at idle.
No drain. No maintenance. No thinking about it.

IP65 RATED
Dustproof. Water-resistant.
Built for the engine bay environment — heat, vibration, moisture.
Not the glove box. Not the trunk. The engine bay.

ZERO LITHIUM
Engine bays reach 200°F+ in summer.
Lithium cells become unstable above 140°F — a real risk for any
permanently installed lithium device.
BS300 has zero lithium inside.
Safe to install. Safe to leave. Safe forever.

EXTREME ENVIRONMENT

–40°F to 176°F.
BS300 Doesn't Care.

Supercapacitors store energy electrostatically.
Temperature has no say in the matter.

WINTER COLD START
–20°F. SUV parked outside overnight.
Battery at 30%. Lithium starter at maybe 60% output.
BS300 at 100%. Always.

DESERT SUMMER
Phoenix. July. Engine bay at 190°F.
Lithium cells are stressed above 140°F.
BS300's supercapacitors are rated to 176°F.
Stable. Safe. Ready.

LONG PARKING
Two weeks in the airport lot.
Battery drained to residual voltage.
BS300 charges from what's left — 3 to 10 minutes.
Engine running before you reach the exit.

DAILY COMMUTE
6 AM. January. Every morning.
BS300 doesn't have bad days.
It just starts your car.

BS300 is not the biggest in the BS series.
It's the right one for most drivers.
The SUV in your driveway. The crossover that takes the kids to school.
The vehicle that can't afford a dead battery at 7 AM.