Your EverStart jump starter can be a lifesaver when you’re stuck with a dead battery, but only if it’s properly charged and ready to go. Whether you’ve just purchased one or need to recharge your existing unit, this guide breaks down everything you need to know about keeping your jump starter powered up and ready for action.
Understanding Your EverStart Jump Starter Type
EverStart offers several jump starter models, each with slightly different charging methods. Before you begin, identify which type you own:
Built-in AC Charger Models (like JUS750CE)
- Feature a built-in 120V AC charger under a protective cover
- Require a standard extension cord for charging
- Typically older models with more basic features
Barrel Connector Models (Maxx Series)
- Use a dedicated barrel connector charging port
- Come with an included AC adapter
- Often have additional features like USB ports and LED lights
Not sure which model you have? Look for either a built-in AC plug under a cover or a barrel-shaped port labeled “AC input” or “Charging port.”
Charging Your Built-in AC Charger Model
If you have an older EverStart with a built-in AC charger (like the JUS750CE series), follow these steps:
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Turn everything off – Make sure all functions (jump starter, LED lights, USB ports, compressor) are switched off.
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Locate the charging port – Find the built-in 120V AC charger concealed under a protective cover on the unit.
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Connect your extension cord – Lift the protective cover and connect a standard extension cord to the unit, then plug the other end into a 120-volt wall outlet.
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Check the charging indicator – The LCD screen will display a battery status icon with bars that change from empty to solid repeatedly during charging.
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Allow adequate charging time – Let the unit charge for approximately 24 hours or until the battery status icon shows 4 solid bars.
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Disconnect properly – When charging is complete, first unplug from the wall outlet, then disconnect from the jump starter.
Charging Your Barrel Connector Model
For newer EverStart models with a barrel connector (like the Maxx series):
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Power down completely – Ensure the jump starter and all its functions are turned off.
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Connect the barrel adapter – Take the barrel connector from the included AC adapter and insert it firmly into the charging port on the jump starter.
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Plug into power – Connect the adapter to a standard 120-volt household outlet.
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Confirm it’s charging – Check that the LCD screen displays the battery status icon with bars changing from empty to solid, indicating active charging.
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Be patient – Allow approximately 20 hours for a full charge, or until the battery status icon shows four solid bars.
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Disconnect in the right order – First unplug from the wall outlet, then remove the barrel connector from the jump starter.
Understanding Charging Indicators
EverStart jump starters use an easy-to-read battery status system:
| Battery Indicator | Status | Action Needed |
|---|---|---|
| 4 solid bars | Fully charged | Ready for use |
| 2-3 solid bars | Partially charged | Can use for emergencies, but consider charging soon |
| 1 solid bar | Low battery | Charge immediately |
| 0 bars/flashing | Critically low | Must charge before use |
During charging, you’ll see the bars cycle from empty to full repeatedly. This animation confirms your unit is actively charging.
How Long Does Charging Take?
Charging times vary based on your specific EverStart model:
| Model Type | Typical Charging Time | Battery Capacity |
|---|---|---|
| Basic models (600A) | 3-4 hours | Lower capacity |
| Standard models (750A) | Up to 24 hours | Medium capacity |
| Maxx series (800A-1200A) | Approximately 20 hours | Highest capacity |
Don’t try to rush the charging process. The longer charging times for premium models ensure their larger lead-acid batteries receive a complete charge cycle, which is crucial for battery health and longevity.
First-Time Charging
Just purchased a new EverStart jump starter? Here’s what you need to know:
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Charge immediately – Even though your unit likely comes partially charged, complete a full initial charge before first use.
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Follow the full charging time – Don’t cut the first charge short, even if indicators show it’s charged sooner. This initial charging cycle conditions the battery.
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Read the manual – Check your specific model’s instructions for any special first-time charging requirements.
Maintaining Your Jump Starter’s Charge
To keep your EverStart jump starter ready for emergencies:
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Charge every 30 days – Even if unused, your jump starter’s lead-acid battery naturally loses charge over time. Monthly recharging prevents battery degradation.
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Store in moderate temperatures – Extreme heat or cold accelerates battery discharge. Keep your jump starter in a cool, dry place between 40-70°F when possible.
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Charge after each use – After jump-starting a vehicle, recharge your unit fully to ensure it’s ready for the next emergency.
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Check charge before trips – Before heading out on a road trip, verify your jump starter has at least 3 bars of charge.
Troubleshooting Charging Problems
Jump Starter Won’t Charge
If your unit isn’t accepting a charge:
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Inspect cables and adapters – Look for visible damage, fraying, or bent connectors. Replace damaged components with manufacturer-specified parts.
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Clean connections – Dust and debris can interfere with proper charging. Use a soft brush to clean charging ports.
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Try different outlets – The problem might be with your power source, not the jump starter.
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Check for secure connections – Ensure all plugs are firmly seated in their ports.
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Allow reset time – Unplug everything, wait 30 seconds, then try again. Sometimes the unit’s internal circuitry needs to reset.
Battery Not Holding Charge
If your jump starter charges but quickly loses power:
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Complete a full charge cycle – Sometimes batteries that haven’t been fully charged for a while need a complete cycle to restore capacity.
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Check for parasitic drains – Make sure all functions (lights, USB ports) are completely off when storing.
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Consider battery age – Lead-acid batteries typically last 3-5 years. If yours is older, it may need replacement.
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Look for internal connection issues – Loose battery terminal connections inside the unit can prevent proper charging or cause rapid discharge.
Model-Specific Charging Tips
JUS750CE Series
- Requires full 24-hour charging cycle
- Always ensure the protective cover is properly closed after charging
- Extension cord connection means you’ll need adequate cord length to reach outlets
Maxx Series (800A-1200A)
- Uses barrel connector with dedicated AC adapter
- Some versions offer wireless charging capabilities
- Typically needs 20 hours for complete charging
- May include fast-charging technology for partial charges
Basic 600A Models
- Charge faster (3-4 hours) due to smaller battery capacity
- Often use simpler LED indicators instead of LCD screens
- May lack advanced features but follow same basic charging principles
Safety Considerations for Charging
Keep these safety tips in mind when charging your EverStart jump starter:
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Use only approved chargers – Other adapters may provide incorrect voltage or current, potentially damaging the battery or creating safety hazards.
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Avoid water exposure – Keep your jump starter and charging equipment away from moisture.
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Don’t overcharge – While occasional extended charging won’t immediately damage the unit, regularly leaving it plugged in for days beyond the recommended time can reduce battery lifespan.
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Watch for overheating – If your jump starter becomes unusually hot during charging, disconnect immediately and let it cool down before troubleshooting.
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Inspect before each charge – Check cables and connections for damage before plugging in.
Maximizing Your Jump Starter’s Lifespan
With proper care, your EverStart jump starter can provide reliable service for years:
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Follow the 30-day rule – Regular monthly charging, even when not in use, is the single most important practice for longevity.
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Avoid complete discharge – Try not to let your jump starter completely drain before recharging.
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Keep it clean – Dust and dirt can affect charging and performance. Wipe down the exterior with a slightly damp cloth (when unplugged).
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Store properly – Keep in a cool, dry place away from extreme temperatures and direct sunlight.
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Use as directed – Only use your jump starter for its intended purposes to avoid straining the battery.
By following these charging guidelines, you’ll ensure your EverStart jump starter is always ready when you need it most. Remember that consistent maintenance is key to reliability – a jump starter is only helpful in an emergency if it’s properly charged and maintained.
