Makita BL1840BSC2 18V LXT Lithium-Ion Battery and Charger Starter Pack (4.0Ah) Instruction Manual

Introduction

This manual provides essential information for the safe and effective use of your Makita 18V LXT Lithium-Ion Battery and Charger Starter Pack (4.0Ah). This kit is designed to power a wide range of Makita 18V LXT, 18V Compact, and 36V (18V X2) LXT tools. Please read all instructions carefully before use.

Key Features:

• Extended Run Time: Powers 18V LXT, 18V Compact Tools and 36V (18V X2) LXT Tools.
• Fast Charging: 18V LXT Lithium-Ion 4.0Ah battery reaches a full charge in approximately 90 minutes.
• Enhanced Performance: Provides up to 35% more run time per charge compared to BL1830 batteries.
• Battery Charge Indicator: Integrated L.E.D. battery charge level indicator allows users to monitor battery charge status.
• Temperature Resilience: Battery delivers consistent power and run time in extreme temperatures, even in winter (-4°F/-20°C).
• Star Protection Computer Controls: Protects against overloading, over-discharging, and overheating.
• Durable Design: Impact-resistant outer case and shock-absorbing inner-liner are engineered to protect the battery.
• Stable Connection: Sixteen contact terminals maintain a constant connection with the tool to help prevent power loss or fluctuation, even during high-vibration applications.
• Low Self-Discharge: Battery resists self-discharge and remains ready for use even after long periods of storage.

Safety Information

Always observe the following safety precautions to prevent personal injury and damage to the product.

• Read all instructions before using the battery charger, battery pack, and product using the battery pack.
• Do not charge the battery pack in wet or damp conditions.
• Do not expose the charger to rain or snow.
• Use only Makita chargers for charging Makita battery packs.
• Do not short-circuit the battery terminals.
• Do not store the battery pack or charger in locations where the temperature may reach or exceed 50°C (122°F).
• Do not incinerate the battery pack even if it is severely damaged or completely worn out. The battery pack can explode in a fire.
• Do not use a damaged battery pack.
• Keep the battery pack out of reach of children.

Setup

Unpacking the Starter Pack:

Carefully remove all components from the packaging. Ensure that all items listed in the package contents are present and undamaged.

Image: Makita 18V LXT 4.0Ah Lithium-Ion Battery. This image shows the black 4.0Ah battery pack with its white and yellow connectors.

Image: Makita DC18SD Charger. This image displays the black charger with teal accents and indicator lights.

Connecting the Charger:

1. Plug the charger's power cord into a standard electrical outlet.
2. The charger's indicator lights will illuminate briefly, indicating it is ready for use.

Operating Instructions

Charging the Battery:

1. Align the battery pack with the charger's slot.
2. Slide the battery pack firmly into the charger until it clicks into place.
3. The charger's indicator lights will show the charging status. Refer to the charger's label for specific light patterns (e.g., solid red for charging, solid green for fully charged).
4. A full charge for a 4.0Ah battery typically takes about 90 minutes.
5. Once charging is complete, remove the battery from the charger.

Image: Makita 18V LXT 4.0Ah Lithium-Ion Battery charge indicator. A hand presses the button on the battery to show the four LED charge level indicators.

Checking Battery Charge Level:

Press the button on the battery pack to activate the LED charge level indicators. The number of illuminated LEDs indicates the remaining battery capacity.

Using the Battery with Tools:

Ensure the battery is fully charged. Align the battery with the tool's battery receiver and slide it in until it clicks securely. To remove, press the release button(s) on the battery and slide it out.

Image: Makita 18V LXT 4.0Ah Lithium-Ion Battery compatibility. This image highlights the yellow battery receiver, indicating compatibility with Makita 18V Lithium-Ion tools with a Star Symbol™ and/or Yellow Battery Receivers.

Maintenance

General Battery Care:

• Avoid heavy loads on the battery when it is almost empty.
• Do not always charge to 100%; charging to 80-90% can extend battery life.
• Avoid using or storing the battery in extreme cold or heat.
• If not used often, fully charge the battery once and store it around 50% charge.
• Rotate between multiple batteries to ensure even wear.
• Do not let the battery completely drain; recharge when it reaches 20-30% capacity.
• Do not leave the battery plugged into the charger after it is fully charged.
• Store batteries in a cool, dry place.
• Keep battery contacts clean.
• Use the battery regularly to prevent capacity loss.
• Always use the correct charger for your battery.

Troubleshooting

Specifications

Warranty

The Makita BL1840BSC2 Starter Pack comes with a 3-year limited warranty. For detailed information regarding warranty coverage, terms, and conditions, please refer to the official Makita warranty documentation included with your product or visit the official Makita website.

Support

For technical assistance, troubleshooting, or service inquiries, please contact Makita customer support. You can find contact information on the official Makita website or in the documentation provided with your product.

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