The Everstart Maxx BC50BE 15 Amp Automotive Battery Charger is a high-frequency smart charger designed to help vehicle owners maintain, charge, and restore their automotive batteries with ease. This versatile charger offers multiple functions, including battery charging, engine start assistance, alternator checks, and battery reconditioning.
Whether you’re an experienced driver or a first-time battery charger user, this guide will walk you through the safe and efficient use of your charger. The BC50BE is designed for both convenience and safety, offering clear digital displays, intuitive controls, and automated features that eliminate the guesswork from battery care.
By following the instructions in this manual, you’ll be able to:
- Identify the parts and controls of your charger.
- Connect the charger to your battery safely.
- Select the correct charging mode for your needs.
- Use advanced functions like Alternator Check and Battery Recondition.
- Understand warning indicators and take the right corrective actions.
This manual uses clear, everyday language and breaks down complex tasks into simple steps.
Safety Information
Your safety is the top priority when working with automotive batteries and chargers. Before operating the Everstart Maxx BC50BE, read these precautions carefully.
General Safety Rules
- Always work in a well-ventilated area. Charging batteries produces gases that can be explosive.
- Avoid open flames, sparks, or smoking near the battery.
- Wear protective eyewear and gloves to prevent injury from sparks or battery acid.
- Keep the charger away from water, rain, and moisture.
- Disconnect the charger from the power source when not in use.
Electrical Safety
- Use only the supplied power cord and ensure it is in good condition.
- Plug the charger into a properly grounded outlet.
- Never attempt to charge a frozen or physically damaged battery.
- Ensure the clamps are connected to the correct polarity before turning on the charger.
Getting to Know Your Charger
The Everstart Maxx BC50BE comes equipped with an intuitive control panel and display system.
Understanding these components will make the operation easier.
Main Components
- LCD Screen – Shows battery status, charging progress, and error messages.
- Mode Selection Buttons – Allows you to choose between Battery Charge, Engine Start, Alternator Check, and Battery Recondition.
- Digital Display Indicators – Displays amps, volts, and time remaining for certain modes.
- Battery Clamps – Connects the charger to your battery terminals (red for positive, black for negative).
- Overheat Alarm – Alerts if the charger becomes too hot.
- Battery Recondition Indicator – Shows when reconditioning mode is active.
- Alternator Check Indicator – Displays the status of the alternator test.
Understanding the Display Icons
The LCD display uses icons to communicate the charger’s status and functions.
| Icon | Solid State | Flashing State |
| Battery | Fully charged | Charging in progress |
| Engine Start | Ready to assist starting | Active engine start mode |
| Alternator Check | Test complete | Alternator check in progress |
| Battery Recondition | Active reconditioning mode | – |
| Reverse Polarity | – | Clamps connected incorrectly |
Connecting the Charger
Step-by-Step Connection Guide
- Ensure the charger is unplugged from the wall outlet.
- Identify your battery’s positive (+) and negative (–) terminals.
- Attach the red clamp to the positive terminal.
- Attach the black clamp to the negative terminal or a grounded metal part of the vehicle.
- Verify that the clamps are secure and free from corrosion.
- Plug the charger into a grounded power outlet.
Reverse Polarity Protection
If the clamps are attached incorrectly:
- The charger will emit a continuous beep.
- The Reverse Polarity icon will flash on the display.
- Disconnect and reconnect the clamps correctly before starting.
Charging Modes and Functions
The Everstart Maxx BC50BE offers four primary functions, each designed for a specific purpose.
Battery Charging
- Press the Battery Charge button once clamps are connected.
- The charger detects battery voltage before engaging.
- If the battery has insufficient voltage, it may switch to Reconditioning Mode.
Usage Tip: Use this mode for regular charging and maintenance of 12V automotive batteries.
Engine Start
- Provides high amperage for 40 seconds to help start a vehicle.
- This is not a jump-start function but a concentrated charge boost.
- After the 40-second timer ends, attempt to start the vehicle.
Usage Tip: Allow the charger to cool down between repeated engine start attempts.
Alternator Check
- Press the Alternator Check button after charging.
- The charger will test the vehicle’s alternator performance.
- The display will indicate if the alternator is functioning properly.
Usage Tip: Use this to diagnose charging system problems when your battery drains quickly.
Battery Recondition
- Runs a 24-hour cycle of high-frequency pulses.
- Helps reduce corrosion on battery plates.
- Can restore some battery capacity, but not guaranteed.
Usage Tip: If the battery fails to charge after one reconditioning cycle, replacement may be necessary.
Charging Procedure
- Connect the clamps correctly.
- Select the desired mode using the Mode Selection button.
- Observe the display for confirmation.
- Monitor the progress until the battery icon shows fully charged.
- Disconnect the charger in reverse order:
- Unplug from wall outlet.
- Remove the negative clamp.
- Remove the positive clamp.
- Unplug from wall outlet.
Maintenance and Care
- Store the charger in a cool, dry place.
- Keep clamps clean and free from oxidation.
- Wipe the charger’s surface with a dry cloth; avoid solvents or harsh chemicals.
- Periodically inspect power cords for damage.
Troubleshooting Guide
| Problem | Possible Cause | Solution |
| Charger won’t start charging | Poor clamp connection or low battery voltage | Clean clamps, ensure secure contact |
| Reverse polarity alarm beeping | Clamps connected incorrectly | Reverse connections to correct polarity |
| Battery won’t hold charge | Battery damaged or at end of life | Replace battery |
| Overheat alarm sounds | Charger overheated | Allow unit to cool before reuse |
Technical Specifications
| Specification | Value |
| Input Voltage | 120V AC, 60Hz |
| Output Voltage | 12V DC |
| Charging Current | 15 Amps |
| Engine Start Current | High amperage boost |
| Recondition Cycle | 24 hours |
| Display Type | LCD |
Glossary
- Polarity – The positive or negative orientation of electrical connections.
- Alternator – The component in a vehicle that generates electricity to recharge the battery.
- Reconditioning – A process of restoring some lost capacity to a battery using special charging pulses.
Customer Support
For assistance:
- Phone: 1-877-571-2391
Website: Everstart Support