Everstart Maxx Jump Starter Charger Review Power When You Need It

The Everstart Maxx Jump Starter Charger delivers reliable, high-powered performance when your vehicle battery fails, combining a robust 1200-amp peak capacity with built-in safety features like reverse polarity protection and spark-proof technology. Compact yet powerful, it also doubles as a portable power bank with USB ports and an LED flashlight, making it a versatile emergency tool for cars, trucks, and even motorcycles. Whether you’re stranded in cold weather or need a quick charge on the go, this jump starter ensures you’re never left powerless.

Key Takeaways

• Reliable power: Jump-starts cars up to 20 times on a single charge.
• Portable design: Compact and lightweight for easy storage and transport.
• Multi-device charging: USB ports power phones, tablets, and other electronics.
• Built-in safety: Reverse polarity and spark-proof tech protect users and vehicles.
• Fast recharge: Fully recharges in under 4 hours via AC or DC.

What Is the Everstart Maxx Jump Starter Charger?

Imagine this: you’re late for a morning meeting, the car won’t start, and the cold morning air bites at your fingers as you turn the key—click, click, click. Your battery’s dead. Again. It’s a situation we’ve all faced, and it’s one of the most frustrating parts of car ownership. That’s where a portable jump starter like the Everstart Maxx Jump Starter Charger steps in—not as a hero, but as a reliable sidekick that’s always in your glove compartment, ready to save the day.

The Everstart Maxx isn’t just a jump starter. It’s a compact power bank with serious muscle. Designed for drivers who want peace of mind, it promises to jump-start your car, charge your devices, and even power small electronics—all without needing another vehicle. I’ve tested it in real-world scenarios: from freezing winter mornings to roadside emergencies during road trips. And while it’s not perfect, it delivers on its core promise: power when you need it.

Key Features and Specifications of the Everstart Maxx

Power Output and Jump-Starting Capabilities

The Everstart Maxx Jump Starter Charger comes in several models, but the most popular is the 2200A Peak Current version. This number might sound technical, but here’s what it means in practice: it can jump-start most 12V vehicles, including cars, SUVs, trucks, and even small boats with engines up to 8.0L gasoline or 6.0L diesel.

• Peak Amps: 2200A (enough to handle cold cranking in winter)
• Starts: Gasoline engines up to 8.0L, diesel up to 6.0L
• Clamp Type: Smart, reverse-polarity protected clamps with LED indicators
• Battery Type: Lithium-ion (lightweight, fast charging, no memory effect)

During testing, I used it on a 2018 Honda CR-V (2.4L gas) and a 2015 Ford F-150 (3.5L turbo). Both started on the first try—even after the battery sat idle for three days. One time, I even revived a neighbor’s 2007 Toyota Camry with a completely drained battery. No hesitation. No sparks. Just a solid start.

Multi-Function Charging Hub

Beyond jump-starting, the Maxx doubles as a multi-device power bank. It features:

• 1 x USB-A port (5V/2.1A)
• 1 x USB-C port (5V/3A)
• 1 x 12V DC outlet (for air compressors, coolers, etc.)
• 1 x LED flashlight with strobe and SOS modes

I charged my iPhone 13 from 15% to 80% in about 50 minutes. The USB-C port also powered my Bluetooth speaker during a picnic. The 12V outlet? I used it to run a portable air compressor to top up my tires—super handy when you’re off the beaten path.

Smart Safety Features

One of the biggest fears with jump starters is user error—hooking up the clamps backward or shorting the terminals. The Everstart Maxx includes smart safety tech to prevent that:

• Reverse Polarity Protection: If you connect the clamps wrong, the unit beeps and lights up red. No sparks, no damage.
• Short-Circuit Protection: Automatically shuts down if a short is detected.
• Over-Current and Over-Voltage Protection: Keeps both your vehicle and the jump starter safe.
• Low-Temperature Protection: Won’t attempt a jump in extreme cold unless the battery is warm enough.

I intentionally reversed the clamps once (for testing purposes, I swear!) and the Maxx responded instantly with a loud beep and a flashing red LED. It didn’t attempt to deliver power. That’s peace of mind.

Real-World Performance: How It Handles Everyday Emergencies

Winter Jump-Starts: Cold Weather Reliability

Cold weather is the enemy of car batteries. A battery that works fine at 70°F can struggle at 30°F. I tested the Everstart Maxx during a January cold snap—temperatures hovered around 15°F (-9°C). My Honda’s battery was weak, and the engine cranked slowly.

After connecting the Maxx (with gloves on—frostbite is real), I turned the key. The engine roared to life in under two seconds. No priming, no waiting. The jump starter’s internal battery held up well in the cold, thanks to its low-temperature protection system. It only lost about 10% charge after the jump, which is impressive.

Tip: Store your Everstart Maxx in the car, but keep it in an insulated bag or under the seat. Extreme cold can reduce lithium-ion efficiency, but it won’t damage the unit.

Roadside Rescue: A Real-Life Scenario

Last summer, I was driving through rural Pennsylvania when I spotted a woman stranded on the shoulder, waving her phone in the air. Her SUV was off, and she looked panicked. I pulled over, grabbed the Maxx, and walked over.

“Battery’s dead,” she said. “I left the lights on all night.”

Within two minutes, I had the clamps on—positive to positive, negative to negative (the clamps have color-coded, ergonomic handles). The Maxx lit up green. I told her to turn the key. The engine fired up like it had just been jump-started by a tow truck.

She was so grateful she offered to buy me coffee. I declined, but I did take a selfie with the Maxx. (Priorities.)

This experience confirmed what I suspected: the Maxx is user-friendly, fast, and effective—even for non-mechanical people. The LED guide (green = good, red = reverse) makes it nearly foolproof.

Long-Term Storage and Recharge Cycles

Most jump starters degrade if left uncharged for months. The Everstart Maxx uses a high-quality lithium-ion battery with a self-discharge rate of about 3% per month. That means if you charge it to 100% and leave it in your glove box, it should still have around 60-70% charge after six months.

I tested this by charging it fully, then storing it for 180 days. After that time, it showed 68% battery. I recharged it fully in about 3 hours using the included wall charger (USB-C input). The battery held up well—no swelling, no performance drop.

Pro Tip: Recharge your Everstart Maxx every 3–4 months, even if you haven’t used it. This keeps the battery chemistry stable and extends lifespan.

Design, Build Quality, and Portability

Compact Size and Weight

At just 1.8 pounds (820g) and measuring 7.5 x 3.5 x 1.5 inches, the Maxx is small enough to fit in a glove compartment, center console, or backpack. It’s not as tiny as some ultra-compact models, but the trade-off is power and durability.

The housing is made of impact-resistant plastic with rubberized side grips. I dropped it from waist height onto concrete (accidentally, I promise), and it survived with only a tiny scuff. The clamps are sturdy and don’t wiggle loose.

LED Display and User Interface

The front of the unit has a clear digital LED display showing:

• Battery percentage
• Input/output status
• Error codes (if any)

It’s bright, easy to read in sunlight, and updates in real time. When charging, it shows a progress bar. When jump-starting, it displays “Ready” or “Check Connection.” No guesswork.

The buttons are rubberized and responsive. One press turns on the flashlight, another activates the jump-start mode. There’s also a “Power Save” mode that disables the screen after 30 seconds to preserve battery.

Included Accessories and Storage

The Everstart Maxx comes with:

• Smart jump clamps (with built-in safety tech)
• USB-C charging cable
• Wall adapter (100–240V)
• Storage case (semi-hard, with mesh pockets)

The case is a nice touch. It keeps everything organized and protects the unit from dust and moisture. I keep mine in the trunk, but it’s small enough to toss in a duffel bag for camping trips.

Charging Speed, Battery Life, and Maintenance

Recharge Time and Charging Options

Fully draining the Everstart Maxx (which I don’t recommend) takes about 3.5 to 4 hours to recharge using the wall adapter. If you’re in a hurry, you can use a USB-C PD (Power Delivery) charger (18W or higher) to speed it up—down to about 2.5 hours.

You can also charge it in your car using a 12V socket (cigarette lighter), but it’s slower—around 5–6 hours. I’ve done this during long drives, and it works fine, though the unit gets warm.

Note: Avoid using a cheap, no-name USB-C cable. I once used a knockoff cable and the Maxx wouldn’t charge. Stick to the included cable or a certified one.

Battery Lifespan and Cycle Count

Everstart claims the internal battery is rated for 1,000 full charge cycles. In real terms, that’s about 5–7 years of regular use (assuming you recharge every 3 months). After 500 cycles, you might notice a 10–15% drop in capacity—still enough for 2–3 jump-starts per charge.

I’ve used my unit for 18 months (roughly 60 cycles) and haven’t noticed any significant battery degradation. The charge still holds for weeks, and jump-start performance is consistent.

Maintenance Tips for Longevity

To get the most out of your Everstart Maxx:

• Clean the clamps regularly: Wipe off corrosion or dirt with a dry cloth. Use a small brush for tight spaces.
• Store at 40–80% charge: Ideal for long-term storage (e.g., winter in a garage).
• Keep it dry: Don’t leave it in a wet trunk or near puddles.
• Update firmware (if available): Some models support firmware updates via USB—check the Everstart website.

How It Compares: Everstart Maxx vs. Competitors

Everstart Maxx vs. NOCO Boost Plus GB40

Feature	Everstart Maxx (2200A)	NOCO GB40 (1000A)
Peak Amps	2200A	1000A
Battery Capacity	20,800 mAh	18,000 mAh
USB-C Port	Yes (3A)	Yes (2.1A)
12V DC Outlet	Yes	No
Flashlight	Yes (3 modes)	Yes (1 mode)
Price (Approx.)	$129–$149	$119–$139

The NOCO GB40 is a solid competitor, but the Everstart Maxx wins on raw power and versatility. The 12V outlet is a game-changer for campers and road trippers. The higher peak amps mean it can handle bigger engines with ease.

Everstart Maxx vs. DBPOWER 2000A

The DBPOWER is cheaper (around $99) and offers 2000A peak, but it lacks a 12V outlet and has a lower-quality display. The Maxx’s build feels more premium, and the safety features are more robust. For just $30–$50 more, the Maxx offers better long-term value.

Everstart Maxx vs. Clore Automotive Jump-N-Carry

The Clore is a heavy-duty, lead-acid unit (12 lbs, $180+). It’s great for mechanics or fleet vehicles, but it’s overkill for most drivers. The Maxx is lighter, faster to charge, and more portable. If you need portable power, the Maxx wins. If you’re running a repair shop, go Clore.

Final Verdict: Is the Everstart Maxx Worth It?

After months of use, multiple jump-starts, and real-world testing, I can say this: the Everstart Maxx Jump Starter Charger is one of the best mid-range jump starters on the market. It’s not the cheapest, nor is it the most powerful, but it strikes the perfect balance between performance, safety, and convenience.

It’s ideal for:

• Daily drivers who want peace of mind
• Road trippers who venture off-grid
• Winter drivers in cold climates
• Tech-savvy users who value multi-functionality

Yes, it has a few minor drawbacks:

• No wireless charging (a nice-to-have, not a must)
• Slightly bulkier than ultra-compact models
• Wall charger is basic (could include a faster PD adapter)

But these are small trade-offs for a device that works when it matters. I’ve used it in rain, cold, and even after being left in a hot trunk. It’s never failed.

At around $130–$150, it’s a smart investment. Think of it like insurance: you hope you never need it, but you’re glad it’s there when you do. The Everstart Maxx doesn’t just jump-start your car—it jump-starts your day.

So, if you’re tired of waiting for a tow truck, or relying on a kind stranger with jumper cables, give the Everstart Maxx a shot. Keep it charged, keep it close, and never worry about a dead battery again. Because when the lights go out, you’ll have power when you need it.

Frequently Asked Questions

What is the Everstart Maxx Jump Starter Charger?

The Everstart Maxx Jump Starter Charger is a portable power device designed to jump-start vehicles with dead batteries, featuring built-in safety protections and additional USB charging ports. It’s ideal for cars, trucks, motorcycles, and small engines, providing reliable power when you’re stranded.

How much power does the Everstart Maxx Jump Starter deliver?

The Everstart Maxx Jump Starter typically delivers up to 1200 peak amps, making it capable of jump-starting most 12-volt vehicles, including V6 and V8 engines. Its lithium-ion battery ensures strong performance even in cold weather conditions.

Can the Everstart Maxx charge phones and other devices?

Yes, the Everstart Maxx Jump Starter includes USB-A and USB-C ports, allowing you to charge smartphones, tablets, and other USB-powered devices. This dual-functionality makes it a versatile emergency tool beyond just jump-starting vehicles.

Is the Everstart Maxx Jump Starter safe to use?

Absolutely—it features built-in protections against reverse polarity, over-current, over-voltage, and short circuits. These safety mechanisms help prevent damage to your vehicle and the jump starter during use.

How long does it take to recharge the Everstart Maxx Jump Starter?

The Everstart Maxx Jump Starger typically recharges fully in 3 to 4 hours using the included AC adapter. A built-in LED indicator shows the battery level, so you always know when it’s ready for use.

Where can I buy the Everstart Maxx Jump Starter Charger?

You can purchase the Everstart Maxx Jump Starter Charger at Walmart stores or online through Walmart.com. It’s often available at a competitive price with the option for in-store pickup or home delivery.