The world's first automatic battery protector

Conquer dead batteries. 
For good.

AlwayStart automatically protects the power in your existing battery so your vehicle is ready to start when you need it – even after months parked. It prevents excessive parasitic draw from draining your starting reserve, helping you avoid being stranded and giving you peace of mind without the hassle of chargers, jump packs, or ongoing maintenance. Install once, then Park & Walk Away.™ 
Zero maintenance. Zero anxiety.

Fully Automatic

Fully Automatic

Reliable Starting Power

Reliable Starting Power

Stops All Parasitic Drain

Stops All Parasitic Drain

One-Time Install

One-Time Install

365-Day Protection

365-Day Protection

Remote Operation

Remote Operation

2X Battery Life

2X Battery Life

Military-Grade Durability

Military-Grade Durability

MIL-STD-810H · IP68

Independent FMEA by ESi

U.S. Patent 12,683,382 B2

$360K+ raised · over a thousand backers

Engineered in Southern California

1,200A solid-state peak

11,000+ hours endurance tested

The problem

A dead battery is never convenient.

Dead batteries are the #1 reason for roadside calls and the #1 warranty replacement at dealerships. Modern vehicles run 20+ microprocessors and electronic control modules, including the ECU, PCM, TCU, BCM, EBCM and more, that quietly draw power while parked. A few weeks or months idle can fully discharge a battery, and every deep discharge accelerates sulfation, permanently shrinking capacity.

Parasitic drain

Alarms, keyless entry, and modules sip current 24/7. Leave the car a few weeks and the starting charge is gone.

Sulfation kills batteries

Each deep discharge builds sulfate crystals that never fully reverse, cutting capacity and lifespan with every cycle.

Old fixes are a hassle

Trickle chargers need cords and outlets. Jump packs only help after your battery is already dead. It's all annoying.

How AlwayStart works

Not a charger. 
Not a jump pack. 
A proactive battery protector.

AlwayStart sits between your battery and the vehicle, continuously measuring energy, health, and temperature. It calculates the minimum charge needed to start your specific vehicle, then electronically isolates the battery the moment drain threatens that reserve. The reserve stays right in your existing starter battery – no extra battery, charging, or maintenance required. Proven, proactive protection, the kind of engineering enthusiasts appreciate, built so you're never left stranded.

Install in minutes

One-time setup on your battery, and no special tools required. Rotate the battery 180°, mount with the integrated bracket, and connect the terminals.

It learns your vehicle

A 32-bit ARM processor runs our patented adaptive algorithm (US 12,683,382 B2), calculating the exact start reserve your vehicle needs.

It isolates automatically

When parasitic drain threatens that reserve, the solid-state switch silently isolates the battery, preserving your start.

Press ON and GO

Back at the vehicle? One press reconnects instantly, from the unit or the wired cabin remote. Turn the key and go.

The proof

Engineered for extremes. 
Validated by professionals.

Performance builders want the engineering and the numbers. 
Collectors want trust and assurance. 

AlwayStart delivers on both: designed, built, and tested in-house under a former flight-test engineer, then validated with a level of rigor rarely seen in consumer automotive hardware.

Aerospace-Grade Engineering

Built with automotive-grade components and engineered to meet demanding environmental standards, including MIL-STD-810H testing principles and an IP68-rated enclosure.

Patented technology

A patented, self-calibrating system continuously evaluates battery energy, health, temperature, and vehicle usage to calculate exactly how much power to reserve for your specific vehicle and conditions.

Independently validated

Third-party Failure Modes and Effects Analysis (FMEA) by forensic-engineering firm ESi across electrical, mechanical, thermal, and software domains – rigor rarely seen in consumer automotive aftermarket hardware.

Near-Zero Self-Draw

UltraSleep mode reduces power consumption to less than 1 microamp, helping ensure AlwayStart does not become another source of battery drain during long-term storage.

11,000+

Hours of endurance testing

450+

Days of field testing

250°F

Rated operating temperature

"No More Dead Batteries."

First seen on Kickstarter where we raised $360k+ from over a thousand backers

"Proactive protection that just works, set it once and forget it's there."

GizmoCrowd review

"The rigor here is unusual: 11,000+ hours of testing and a third-party FMEA."

First-Backer

"The attention to design, detail, prototyping, and testing is evident."

"ESi finds no critical design flaws or failures in the engineering... the product is robust."

ESi, forensic engineering

Over a thousand backers. Zero dead batteries.

Early supporters and field testers on what it's like to Park & WalkAway.™

"My '69 Camaro used to sit all winter and come out dead every spring. I installed it once, walked away for four months, and it turned over on the first crank. No cords in my garage anymore."

Ray M.

Classic car owner · Backer

"I run a winch and a big audio setup on my overland rig. The 1,200A headroom doesn't flinch, and after dusty desert trips it just keeps protecting. This is the part I stopped worrying about."

Devin T.

Overlander · Field tester

"I keep an E-Type and a couple of weekend cars. One goes months between drives. With AlwayStart I stopped babysitting battery tenders, every one fires up when I want to drive it."

Marcus K.

Collector · Backer

Representative quotes from AlwayStart backers and field testers. Names shortened for privacy.

AlwayStart beats every other solution.

Chargers need outlets and ongoing attention.
Jump packs only react after the battery is already dead.

Features AlwayStart Chargers Jump Packs
Stops parasitic drain
Fully automatic
Helps extend battery life
No ongoing upkeep
Long-term storage support ✓
Immediate start support ✓ ✓
One-time installation
Wireless operation
*No hood opening required

*With optional in-cabin wired remote.

AlwayStart prevents the problem before it happens — automatically, wirelessly, seamlessly.

Built for real vehicles

Will it fit your vehicle?

AlwayStart is built for gas and diesel vehicles with 12V lead-acid batteries. Here’s our honest guide to what works and what doesn’t.

Works well with...

Gas & Diesel Vehicles

Gas & Diesel Vehicles

12V lead-acid starter batteries.

Battery Types

Battery Types

AGM, GEL, EFB, flooded, and sealed lead-acid batteries

Terminal  Options

Terminal  Options

Top-post and side-terminal batteries

Pick your protection.

Batch 4 pre-orders are now open – estimated to ship March 2027.

Proactive Battery Protector

For one 12V vehicle
$ 369
  • Fully automatic protection
  • Available for both top-post and side-post batteries
  • 3-in-1 LED monitoring
  • Free shipping (U.S. only)
  • No remote