What Makes the Autowit SuperCap 2 at Walmart a Game-Changer for Jump-Starting Cars?

The Autowit SuperCap 2, sold at Walmart, is a portable car jump starter using supercapacitor technology for rapid charging and durability. Unlike traditional lithium batteries, it charges in 2-3 minutes, works in extreme temperatures (-22°F to 158°F), and lasts up to 10 years. Ideal for emergencies, it’s lightweight (1.5 lbs), safe, and compatible with gas/diesel engines up to 8.0L.

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How Does the Autowit SuperCap 2 Work?

The Autowit SuperCap 2 uses supercapacitors to store energy electrostatically, not chemically. This allows it to charge in minutes via a 12V car outlet or USB. It delivers high bursts of power (800A peak) to start dead batteries without needing pre-charging. Its self-regulating circuitry prevents overcharging, making it safer than lithium-based alternatives.

Supercapacitors function through ion adsorption on electrode surfaces rather than chemical reactions. This enables near-instant energy transfer – the SuperCap 2 can charge fully during the time it takes to connect jumper cables. Unlike lead-acid batteries that degrade after 300-500 cycles, supercapacitors maintain 80% capacity after 10,000 charge cycles. The device features three operational modes: standby (0.1W consumption), charging (15W input), and discharging (800A peak output). A built-in microprocessor automatically detects battery polarity and voltage levels, preventing reverse-charge accidents.

Why Choose Supercapacitor Technology Over Traditional Jump Starters?

Supercapacitors offer faster charging, longer lifespan (10,000+ cycles), and better performance in extreme temperatures. They’re eco-friendly, with no toxic chemicals, and eliminate fire risks associated with lithium batteries. The Autowit SuperCap 2’s compact design also saves space compared to bulky battery packs.

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Supercapacitors excel in cold climates where lithium batteries fail. Their carbon-based construction contains no flammable electrolytes, meeting FAA requirements for air travel. The technology also avoids memory effect – partial charging doesn’t reduce overall capacity. For commercial fleets, this means reliable performance across multiple vehicles daily without performance degradation.

Where Can You Buy the Autowit SuperCap 2 at Walmart?

The Autowit SuperCap 2 is available at Walmart stores and online at Walmart.com. Prices range from $149–$199, often including accessories like USB cables and carrying cases. Walmart-exclusive bundles may include extended warranties or roadside assistance kits.

What Vehicles Are Compatible with the Autowit SuperCap 2?

Compatible with gasoline and diesel engines up to 8.0L, including cars, trucks, motorcycles, boats, and RVs. It works on 12V systems and supports hybrid vehicles. Not recommended for electric cars (e.g., Tesla) due to higher voltage requirements.

How to Maintain the Autowit SuperCap 2 for Longevity?

Store it in a dry place and recharge every 3–6 months if unused. Avoid puncturing the casing or exposing it to water. Clean terminals with isopropyl alcohol periodically to ensure optimal conductivity. No firmware updates or complex maintenance required.

Expert Views

“The Autowit SuperCap 2 redefines emergency preparedness. Its supercapacitor tech eliminates the ‘dead battery’ anxiety plaguing traditional jump starters. At Redway, we’ve tested it in -20°F Alaskan winters and 120°F Arizona summers—it performed flawlessly. For frequent travelers, it’s a must-have.”
— Redway Power Solutions Engineer

FAQs

How Long Does the Autowit SuperCap 2 Hold a Charge?

It retains 85% charge for 3–6 months. Recharge every 6 months if unused.

Can It Charge Smartphones or Laptops?

Yes, via its USB port. It doubles as a 12,000mAh power bank.

Does Walmart Offer In-Store Demos?

Select Walmart Auto Centers provide live demos. Call ahead to confirm availability.