Parasitic drain
Alarms, keyless entry, and modules sip current 24/7. Leave the car a few weeks and the starting charge is gone.
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.
Alarms, keyless entry, and modules sip current 24/7. Leave the car a few weeks and the starting charge is gone.
Each deep discharge builds sulfate crystals that never fully reverse, cutting capacity and lifespan with every cycle.
Trickle chargers need cords and outlets. Jump packs only help after your battery is already dead. It's all annoying.
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.
One-time setup on your battery, and no special tools required. Rotate the battery 180°, mount with the integrated bracket, and connect the terminals.
A 32-bit ARM processor runs our patented adaptive algorithm (US 12,683,382 B2), calculating the exact start reserve your vehicle needs.
When parasitic drain threatens that reserve, the solid-state switch silently isolates the battery, preserving your start.
Back at the vehicle? One press reconnects instantly, from the unit or the wired cabin remote. Turn the key and go.
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.
Built with automotive-grade components and engineered to meet demanding environmental standards, including MIL-STD-810H testing principles and an IP68-rated enclosure.
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.
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.
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.
Hours of endurance testing
Days of field testing
Rated operating temperature
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
Real owners and creators, on camera. Tap a clip to play.
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."
"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."
"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."
Representative quotes from AlwayStart backers and field testers. Names shortened for privacy.
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.
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.
12V lead-acid starter batteries.
AGM, GEL, EFB, flooded, and sealed lead-acid batteries
Top-post and side-terminal batteries
Batch 4 pre-orders are now open – estimated to ship March 2027.