How Do I Charge My Everstart Jump Starter A Complete Guide

Charging your EverStart jump starter is simple and essential for reliable performance—always use the included charger and plug it into a standard 120V outlet. Ensure the unit is powered off before charging, and allow 3–6 hours for a full charge, indicated by a solid or green LED light. Regular charging after each use and every 3–6 months during storage keeps your jump starter ready for emergencies.

Key Takeaways

• Use the correct charger: Always use the manufacturer-provided charger to avoid damage.
• Check battery level: Monitor the LED indicators before and during charging.
• Charge fully before first use: Ensure 100% charge for optimal performance.
• Avoid overcharging: Unplug once fully charged to extend battery lifespan.
• Store properly when not in use: Recharge every 3-6 months to maintain health.

How to Charge Your Everstart Jump Starter: A Complete Guide

Picture this: you’re late for work, you hop in your car, turn the key, and—nothing. The engine doesn’t crank. The lights flicker weakly. It’s a classic case of a dead battery, and you’re stuck. But wait—you’ve got your trusty Everstart jump starter in the trunk. Relief washes over you… until you realize you haven’t charged it in months. Now the real panic sets in.

We’ve all been there. A jump starter is only as good as its charge. And while Everstart models are reliable, durable, and widely available at Walmart and other retailers, knowing how to charge your Everstart jump starter properly is essential to keeping it ready when you need it most. Whether you’re a first-time owner or someone who just pulled theirs out of storage, this guide walks you through everything: from understanding charging methods and troubleshooting common issues to best practices that extend battery life. No jargon, no fluff—just clear, practical advice from someone who’s learned the hard way (and fixed it).

Understanding Your Everstart Jump Starter Model

Before you plug anything in, it’s important to know what kind of Everstart jump starter you have. Not all models charge the same way, and using the wrong method or charger can damage the unit or shorten its lifespan. Everstart offers several types, including lithium-ion portable jump starters, traditional lead-acid models, and hybrid units with USB charging and air compressors.

Identifying Your Model

Most Everstart jump starters have a label on the back or bottom that lists the model number, voltage (typically 12V), and battery type. Common models include:

• Everstart Maxx 1200A – Lithium-ion, compact, includes USB ports and LED light
• Everstart MAXX-2000 – Higher power, dual USB, built-in air compressor
• Everstart Lead-Acid Jump Starter (e.g., 18Ah) – Older style, heavier, requires AC wall charging

Once you know your model, check the user manual (available online if you’ve misplaced it). It will specify the correct charging voltage, current, and compatible chargers. For example, the Maxx 1200A uses a 12V/1A DC input, while lead-acid models often need a 12V/2A smart charger.

Battery Type Matters

The charging process depends heavily on the battery chemistry inside your jump starter:

• Lithium-ion (Li-ion): Found in newer Maxx models. These are lightweight, charge quickly, and don’t suffer from memory effect. They usually come with a built-in charge controller and accept 12V DC input via a barrel plug or USB-C.
• Lead-Acid (SLA): Older models use sealed lead-acid batteries. These are heavier and require a smart charger to prevent overcharging. They’re more sensitive to undercharging and over-discharging.

Using a lithium-ion charger on a lead-acid battery (or vice versa) can be dangerous. Always double-check compatibility. For instance, I once used a generic 12V charger on my lead-acid Everstart—it overcharged the battery and caused it to swell. Not fun.

Where to Find the Manual and Specs

If you can’t find your manual, head to Walmart.com or Everstart’s official support page. Search for your model number, and download the PDF. Look for these key specs:

• Input voltage and current (e.g., 12V, 1A)

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• Charging time (usually 3–8 hours)
• Compatible charger types (e.g., “only use supplied 12V adapter”)
• Low-battery warning indicators

Pro tip: Save a digital copy of your manual on your phone. You never know when you’ll need it during a roadside emergency.

How to Charge Your Everstart Jump Starter: Step-by-Step

Now that you know your model and battery type, let’s get into the actual charging process. Whether you’re using a wall outlet, car adapter, or solar charger, the steps are straightforward—but small mistakes can lead to big problems.

Charging via Wall Outlet (Most Common)

This is the standard method for most Everstart models, especially lithium-ion and lead-acid units.

1. Locate the charging port – Usually a small DC barrel jack (like on a laptop charger) or USB-C port. On Maxx models, it’s often labeled “Charge In” or has a lightning bolt icon.
2. Use the correct charger – Plug in the original AC-to-DC adapter that came with your jump starter. If you’ve lost it, buy a replacement with matching voltage and current (e.g., 12V, 1A). Avoid “universal” chargers unless they’re certified for your model.
3. Plug into a wall outlet – Choose a dry, well-ventilated area. Avoid charging on flammable surfaces like beds or rugs.
4. Monitor the charging lights – Most Everstart units have LED indicators:
   • Red or blinking = charging
   • Green or solid = fully charged
   • Flashing red = error (low voltage, overheating, etc.)
5. Unplug when fully charged – Don’t leave it plugged in overnight unless the manual says it’s safe. Overcharging can degrade lithium batteries over time.

Example: My Everstart Maxx 1200A takes about 4 hours to charge from empty to full. I plug it in after a weekend trip, and by Monday morning, it’s ready for the week.

Charging in Your Vehicle (DC Charging)

Some Everstart models come with a 12V car charger (cigarette lighter plug). This is handy if you’re on the road and forgot to charge at home.

1. Start your car’s engine – The alternator must be running to provide stable power. Idling is fine, but don’t plug it in with the engine off—this can drain your car battery.
2. Plug the DC charger into the cigarette lighter – Make sure it fits snugly.
3. Connect the other end to your jump starter – Again, match the voltage (usually 12V).
4. Check the charging indicator – Same as wall charging: red = charging, green = done.
5. Unplug once charged – Don’t leave it connected while driving unless you’re actively charging.

Important: Not all Everstart models support car charging. The Maxx 1200A does, but older lead-acid models may require a separate 12V smart charger. Check your manual!

Alternative Charging Methods (Solar, USB, etc.)

Some newer Everstart Maxx models support USB-C input, which means you can charge them from:

• Your laptop or tablet charger (5V/3A or higher)
• A power bank with USB-C output
• A solar charger with USB-C (great for camping or emergencies)

For example, my Maxx 1200A has a USB-C port. I’ve charged it using my MacBook Pro charger during a road trip. It takes longer (6–8 hours), but it works in a pinch.

Note: USB charging is slower and not ideal for full recharges, but it’s perfect for topping off the battery. Also, avoid cheap USB cables—they can cause voltage drops and slow charging.

What NOT to Do

• Don’t use a car battery to jump-start the jump starter – This can reverse current and damage both batteries.
• Don’t charge in extreme temperatures – Below 32°F or above 104°F can harm lithium-ion batteries.
• Don’t use damaged chargers or cables – Frayed wires or loose connectors are fire hazards.

Troubleshooting Common Charging Issues

Even with the right gear, things can go wrong. Here are the most common charging problems and how to fix them—based on real-world experience.

Jump Starter Won’t Charge (No Lights)

If you plug it in and nothing happens, don’t panic. Try these steps:

1. Check the outlet – Plug in a lamp or phone charger to confirm power.
2. Inspect the charger – Look for bent pins, frayed wires, or loose connections. Test the output with a multimeter if you have one (should read ~12V).
3. Clean the charging port – Use compressed air or a dry toothbrush to remove dust or debris.
4. Try a different charger – If you have a compatible spare, test it. I once thought my Maxx was broken—turned out the original charger died.

If none of these work, the internal battery may be deeply discharged or damaged. Lithium-ion batteries can go into “sleep mode” if left uncharged for months. A smart charger with a “recondition” mode might revive it.

Charging Light Flashes or Blinks

A blinking red light usually means:

• Low input voltage – The charger isn’t delivering enough power. Try a different outlet or charger.
• Overheating – The unit is too hot. Let it cool down for 30 minutes, then restart.
• Faulty connection – The plug isn’t seated properly. Unplug and reinsert firmly.
• Battery fault – If the light keeps blinking, the battery may be defective. Contact Everstart support or consider replacement.

One time, my jump starter blinked red after a cold winter. I brought it inside, let it warm up to room temperature, and it started charging normally.

Charger Gets Hot

A slightly warm charger is normal. But if it’s too hot to touch, unplug it immediately. Possible causes:

• Using a non-certified charger with incorrect voltage
• Charging in direct sunlight or near a heater
• Internal short in the charger or jump starter

Switch to a cooler location and use only the original or manufacturer-recommended charger.

Slow Charging or Not Holding Charge

If your Everstart charges slowly or loses power quickly:

• Check the battery age – Lithium-ion batteries degrade after 2–3 years of regular use. If your unit is old, it may need replacement.
• Fully discharge and recharge – For lithium models, do a full cycle (use until dead, then charge to 100%) to recalibrate the battery meter.
• Store properly – Long-term storage at 0% charge damages batteries. Always store at 50–70% charge.

I once stored my jump starter in the trunk over winter without charging it. When I pulled it out, it wouldn’t hold a charge. After a few full cycles, it improved—but never worked like new.

Best Practices for Long-Term Battery Health

Charging your Everstart jump starter isn’t just about getting it to 100%. It’s about keeping it healthy so it lasts for years. Here’s how to maximize battery life and performance.

Charge Before First Use

Even if your jump starter comes “pre-charged,” charge it fully before using it. This ensures the battery management system (BMS) is properly initialized.

Maintain a Regular Charging Schedule

Don’t wait until it’s dead to charge. For lithium-ion models:

• Charge every 3 months if stored unused
• Top off after every use (even partial discharges)
• Avoid deep discharges (below 20%)

For lead-acid models, charge every 6 weeks to prevent sulfation (a chemical buildup that reduces capacity).

Store in the Right Environment

Batteries hate extreme heat and cold. Ideal storage conditions:

• Temperature: 50°F to 80°F (10°C to 27°C)
• Humidity: Low to moderate
• Location: Indoors, away from sunlight and moisture

I keep mine in my basement workshop—cool, dry, and out of the way. Never store in a hot car trunk or freezing garage.

Use the Right Charger Every Time

Stick to the original charger or a certified replacement. Cheap knockoffs may not have overcharge protection, which can lead to fires or explosions. Look for UL, CE, or FCC certification on the charger label.

Calibrate the Battery (For Lithium Models)

Once every 3–6 months, do a full discharge and recharge cycle:

1. Use the jump starter until it shuts off (or lights flash)
2. Charge it uninterrupted to 100%

This helps the internal battery meter stay accurate and can improve performance.

Check for Physical Damage

Before every charge, inspect your jump starter for:

• Swollen or bulging case (sign of battery failure)
• Cracks, dents, or water damage
• Loose or corroded clamps

If you see any of these, stop using it and contact Everstart support.

Data Table: Charging Times and Compatibility by Everstart Model

Model	Battery Type	Charging Method(s)	Input Voltage	Charging Time (Empty to Full)	Notes
Everstart Maxx 1200A	Lithium-ion	Wall (AC), Car (DC), USB-C	12V DC / 5V USB-C	3–4 hours (AC), 6–8 hours (USB)	Includes AC adapter and DC car charger
Everstart MAXX-2000	Lithium-ion	Wall (AC), Car (DC)	12V DC	4–5 hours	Built-in air compressor; no USB charging
Everstart 18Ah Lead-Acid	Sealed Lead-Acid	Wall (AC) with smart charger	12V DC, 2A	6–8 hours	Requires smart charger to avoid overcharging
Everstart Maxx 1000 (Older)	Lithium-ion	Wall (AC), Car (DC)	12V DC	3–4 hours	No USB-C; uses barrel plug
Everstart Maxx 1500 (USB-C)	Lithium-ion	Wall (AC), Car (DC), USB-C, Solar	12V DC / 5V–12V USB-C	4–5 hours (AC), 8+ hours (USB/solar)	Great for outdoor use; supports fast charging

Conclusion: Keep Your Everstart Ready When You Need It

Knowing how to charge your Everstart jump starter isn’t just a technical detail—it’s peace of mind. Whether you’re facing a cold winter morning, a long road trip, or an unexpected breakdown, a properly charged jump starter can save your day.

Remember the key takeaways: identify your model, use the correct charger, avoid extreme temperatures, and charge regularly—even when you’re not using it. A little maintenance goes a long way. I’ve had my Maxx 1200A for over three years, and it still works like new because I follow these simple steps.

And if you ever run into trouble? Don’t guess—check the manual, inspect your gear, and troubleshoot step by step. Most issues are fixable. Your Everstart jump starter is more than a tool. It’s a lifeline. Treat it right, and it will return the favor when you need it most.

So go ahead—plug it in, charge it up, and rest easy knowing you’re prepared. Because the best jump starter is the one that’s ready, not just the one you own.

Frequently Asked Questions

How do I charge my Everstart jump starter for the first time?

To charge your Everstart jump starter initially, connect the included AC adapter to the charging port and plug it into a standard wall outlet. A full charge typically takes 12–24 hours, indicated by a solid green light on most models.

What type of charger does an Everstart jump starter use?

Everstart jump starters usually come with a 120V AC wall charger or a 12V DC car charger. Always use the manufacturer-provided charger or a compatible replacement to avoid damage to the battery.

How do I know when my Everstart jump starter is fully charged?

Most Everstart models have an LED indicator—red means charging, and green signals a full charge. Some newer versions may also have a digital display showing battery percentage for precise monitoring.

Can I charge my Everstart jump starter while using it to power devices?

No, it’s not recommended to charge your Everstart jump starter while simultaneously powering other devices. Doing so can overload the system, reduce battery lifespan, or trigger safety protections.

How long does it take to charge an Everstart jump starter completely?

Charging time varies by model but generally ranges from 6 to 24 hours. Smaller 12V models charge faster, while high-capacity lithium-ion versions may require a full day for optimal performance.

Is it safe to leave my Everstart jump starter charging overnight?

Yes, most Everstart jump starters have built-in overcharge protection, making it safe to leave them plugged in overnight. However, always follow the user manual’s charging guidelines to maintain battery health.