DeWALT DXAEJ14 Jump Starter with Digital Compressor User Manual

DeWALT DXAEJ14 Jump Starter with Digital Compressor

Specific Safety Instructions for Jump Starters

• WARNING – Burst hazard: Do not use the unit for charging dry-cell batteries that are commonly used with home appliances. These batteries may burst and cause injury to persons and damage property. Use the unit for charging/boosting a lead-acid battery only. It is not intended to supply power to a low-voltage electrical system other than in a starter-motor application.
• WARNING: To reduce the risk of electric shock, never immerse this unit in water or any other liquid, or use when wet.
• WARNING – Risk of explosive gases:
• Working in the vicinity of a lead-acid battery is dangerous. Batteries generate explosive gases during normal battery operation. For this reason, it is of the utmost importance that each time before using the jump-starter you read this manual and follow instructions exactly.
• To reduce the risk of battery explosion, follow these instructions and those published by the battery manufacturer and manufacturer of any equipment you intend to use in the vicinity of the battery. Review cautionary markings on these products and on the engine.
• WARNING – To reduce the risk of fire:
• Do not operate near flammable materials, dust, fumes or gases.
• Do not expose to extreme heat or flames.
• CAUTION – To reduce the risk of injury or property damage:
• NEVER ATTEMPT TO JUMP-START OR CHARGE A FROZEN BATTERY.
• Vehicles that have on-board computerized systems may be damaged if vehicle battery is jump-started. Before jump-starting, read the vehicle’s owner’s manual to confirm that external-starting assistance is suitable.
• When working with lead acid batteries, always make sure immediate assistance is available in case of accident or emergency

Components (Fig. 1)

• A. Handle
• B. Jump Starter Power Switch
• C. Backlit LCD Screen
• D. Compressor Power Button
• E. USB Ports
• F. USB Power/Fault Indicators
• G. Decrease Compressor Pressure Control Button ( )
• H. Area Light Power Button
• I. Alternator Check Button
• J. Increase Compressor Pressure Control Button ( )
• K. USB Power Button
• L. Negative (–) Black Clamp
• M. Positive (+) Red Clamp
• N. LED Area Light (two banks of three LEDs)
• O. Built-in 120 Volt AC Charger (under protective cover)
• P. 12V DC Charging Port (under protective cover)
• Q. Storage Compartment
• R. Air Hose and SureFit® Nozzle
• S. 12 Volt DC Charging Adapter
• T. Nozzle Adapter

LCD Display Detail (Fig. 2)

Overview

COMMON ACTIONS AND UNIT RESPONSES

The following actions turn the unit on and activate the LCD screen:

• NOTE: The unit will automatically power off once ALL the functions and the charging process are turned off.

Viewing Battery Status

The Battery Status Icon and Battery Voltage Indicator indicate the battery charge level as follows:

• If the battery charge level is at full capacity, four solid bars will display.
• If the battery is partially charged, two or three solid bars will display.
• If the battery is nearly empty, one solid bar will display. The unit should be charged at this time.
• If the battery is completely empty, four blank bars will display. The unit MUST be charged at this time or the unit’s built-in low voltage protection will activate. The empty Battery Status Icon will flash for a short period of time before automatic shut down. The unit will not operate until the battery is recharged.

Charging/Recharging

• Lead-acid batteries require routine maintenance to ensure a full charge and long battery life. All batteries lose energy from self-discharge over time and more rapidly at higher temperatures. Therefore, batteries need periodic charging to replace energy lost through self-discharge. When the unit is not in frequent use, manufacturer recommends the battery should be recharged at least every 30 days and after each use.

Important Charging Notes

1. This unit is delivered in a partially charged state – you must fully charge it before using it for the first time. Initial AC charge should be for 40 hours or until the Battery Status Icon shows 4 solid bars.
2. Recharging the battery after each use will prolong battery life; frequent heavy discharges between recharges and/or overcharging will reduce battery life.
3. The battery can be recharged using the built-in 120 Volt AC Charger or the 12 Volt DC Adapter.
4. Make sure all other unit functions are turned off during recharging, as they can slow the recharging process.
   • CAUTION – To reduce the risk of property damage: Failure to keep the battery charged will cause permanent damage and result in poor jump starting performance.
   • IMPORTANT: If you know the unit is discharged, but the battery icon displays four solid bars as if the unit is fully charged when connected to a charging power source, this may be due to the internal battery having high impedance. The manufacturer suggests leaving the unit charging for a period of 40 hours using the built-in AC charger before use

Charging/Recharging Using the Built-In 120 Volt AC Charger and AC Extension Cord (not supplied)

1. Lift the protective cover of the built-in 120 Volt AC Charger located on the back of the unit (refer to Fig. 1 to locate). Connect an extension cord to the unit. Plug the other end of the cord into a standard 120‑volt AC wall outlet. When the unit is properly connected to an AC power source, the LCD screen will display the following:
   • The bars on the Battery Status Icon represent the charge level of the unit’s internal battery. The bars on the Battery Status Icon will change from empty to solid (bottom to top) repeatedly to indicate the unit is charging. The backlight will turn on for 10 seconds (only).
2. Charge for approximately 40 hours or until the Battery Status Icon shows 4 solid bars.
3. When charging is complete, unplug the AC extension cord from the AC outlet and then disconnect it from the unit

Jump-Starter

• This unit is equipped with a jump starter power switch that allows energy to flow only when proper connections are made to battery and frame.
• A. For negative-grounded systems, connect the positive (red) clamp to the positive ungrounded battery post and the negative (black) clamp to the vehicle chassis or engine block away from the battery. Do not connect the clamp to the carburetor, fuel lines or sheet-metal body parts. Connect to a heavy gage metal part of the frame or engine block.
• B. For positive-grounded systems, connect the negative (black) clamp to the negative ungrounded battery post and the positive (red) clamp to the vehicle chassis or engine block away from the battery. Do not connect the clamp to the carburetor, fuel lines or sheet-metal body parts. Connect to a heavy gage metal part of the frame or engine block.
  • IMPORTANT: Make sure the Compressor Power Button has been turned off before attempting to use the unit as a Jump Starter
• If the clamps are connected incorrectly with regard to polarity, the unit will sound a continuous alarm until the clamps are disconnected. The backlit LCD Screen will display the Battery Status Icon, the Battery Voltage Indicator and the Clamp Icons. The “+” and”–” signs above the Clamp Icons, the Reverse Polarity Icons and the Alarm Icon will flash. The backlit LCD screen will display the following
• If the Jump Starter Power Switch is turned on and the unit detects that the clamps are not connected to a battery, a two-second warning will sound every 10 seconds. The LCD screen will display the Battery Status Icon, the Battery Voltage Indicator, and the Clamp Icons with the “+” and”–” signs. The Alarm Icon and the Jump Starter Icon will flash. The backlit LCD screen will display the following:
• Turn off the Jump Starter Power Switch; connect the clamps to the battery, making sure the clamps are connected with correct polarity then turn the Jump Starter Power Switch back on
• Always disconnect the negative (black) jumper cable first, followed by the positive (red) jumper cable, except for positive grounded systems.

PROCEDURE

Take the following steps, observing all cautions and warnings in the “Important Safety Instructions” section at the front of this manual.

1. Turn off vehicle ignition and all accessories (radio, A/C, lights, connected cell phone chargers, etc.). Place vehicle in “park” and set the emergency brake.
2. Make sure the jump-starter power switch is in the off position.
3. Remove jumper clamps from clamp tabs. Connect the red clamp first, then the black clamp.

Alternator Check

Set up the unit and connect to the battery following steps 1 through 5 in the “Jump-Starter” section.

Important Notes About the Alternator Check Function

1. The unit may detect that the alternator is out of typical voltage range because someone has added a number of accessory loads on the charging system, thereby increasing current demand from the alternator. MAKE SURE THAT THE ALTERNATOR IS RATED TO SUPPORT THE APPLICATION.
2. This check may not be accurate for every make, manufacturer and model of vehicle. Check only 12 volt systems.

PART 1

No Load (turn OFF all vehicle’s accessories): The vehicle battery must be fully charged before testing the alternator. Run the engine long enough to achieve normal idle speed and verify there is a no-load voltage.

1. Press the Alternator Check Button to start the check. The backlit LCD screen will display the following to indicate the unit is analyzing the alternatorThe Battery Status Icon will light solid and the Alternator Icon will flash.
2. If the unit detects that the alternator is good, the backlit LCD screen will display the followingThe Battery Status Icon, Alternator Icon, and “ALT GOOD” will light solid.
3. If the unit detects that the alternator is out of typical voltage range, the backlit LCD screen will display the followingThe Battery Status Icon, Alternator Icon and “ALT” will light solid. The Fault Icon will flash.
4. Press the Alternator Check Button again to stop the test and turn off the unit

PART 2

Under Load (accessories ON): Next, load the alternator by turning on as many accessories as possible (except for A/C and Defrost).

1. Press the Alternator Check Button to start the check. The backlit LCD screen will display the following to indicate the unit is analyzing the alternator:The Battery Status Icon will light solid and the Alternator Icon will flash.
2. If the unit detects that the alternator is good, the backlit LCD screen will display the following:The Battery Status Icon, Alternator Icon, and “ALT GOOD” will light solid
3. If the unit detects that the alternator is out of typical voltage range, the backlit LCD screen will display the following:The Battery Status Icon, Alternator Icon and “ALT” will light solid. The Fault Icon will flash.
4. Press the Alternator Check Button again to stop the test and turn off the unit.
   • IMPORTANT: Always turn the unit off when not in use. Recharge this unit fully after each use

Portable Compressor

• The built-in 12 volt DC compressor is the ultimate compressor for all vehicle tires, trailer tires and recreational inflatables. A nozzle adaptor is supplied that screws onto the end of the SureFit® nozzle at the freeend of the compressor hose. The compressor hose with tire fitting is stored in the compressor hose storage compartment. Refer to Fig. 1 to locate the compressor hose. The Compressor Power Button and Increase ( ) and Decrease ( ) Compressor
• Pressure Control Buttons are located on the control panel on the front of the unit. Before proceeding, check the unit’s battery status on the LCD screen.
  Four solid bars in the battery icon indicates a full battery. When the battery level is nearly empty with only one solid bar, the unit MUST be recharged before use or the unit’s built-in low voltage protection will activate. The empty Battery Status Icon will flash for a short period of time before automatic shut down.

INFLATING TIRES OR PRODUCTS WITH VALVE STEMS

1. Screw the SureFit® nozzle onto the valve stem. Do not overtighten.
2. Press the Compressor Power Button. A beep will sound and the backlit LCD screen will display the following:The Compressor Icon will light and the Digital Display will alternately show the flashing pre-set psi value (that was last set by the compressor pressure control buttons) and the current pressure of the item being inflated (which will light solid).
3. Press the “ ” and “ ” Pressure Control Buttons to set the desired pressure from a range pre-set values (between 3 and 120), which will display on the backlit LCD Screen. The unit will sound a beep with each press of the buttons (holding the button speeds up the upward or downward value selection). Once the desired pressure has been entered, release the button and the flashing digital display will show the new selected pressure, as follows:The new selected value is now stored in the unit’s memory until it is manually reset.
4. Press the Compressor Power Button once more to begin inflating. The Compressor Icon will flash and the digital display will only show the current pressure value (which will light solid) to indicate the compressor is activated. Monitor the pressure on the LCD Screen.
   • IMPORTANT NOTE: To interrupt during inflation, press the Compressor Power Button again.
5. When desired pre-set pressure is reached, the compressor will automatically stop.
6. Press the Compressor Power Button again to turn off the unit.
7. Unscrew and remove the SureFit® nozzle from the valve stem.
8. Allow the unit to cool, then recharge before storing away.
9. Store the compressor hose and SureFit® nozzle in the storage compartment.

INFLATING OTHER INFLATABLES WITHOUT VALVE STEMS

Inflation of other items requires use of the nozzle adapter.

1. Screw the nozzle adapter into the SureFit® nozzle. Do not overtighten.
2. Insert the nozzle adapter into item to be inflated.
3. Follow steps 2 through 4 of the “Inflating Tires or Products With Valve Stems” section.
   • IMPORTANT: Small items such as volleyballs, footballs, etc. inflate very rapidly. Keep this in mind when setting pressure. Take extra care not to over-inflate.
4. When the desired pressure is reached, the compressor will automatically stop. Press the Compressor Power Button again to turn off the unit.
5. Disconnect the adapter from the inflated item.
6. Unscrew and remove the nozzle adapter from the SureFit® nozzle.
7. Allow the unit to cool, then recharge before storing away.
8. Store the compressor hose, SureFit® nozzle and nozzle adapter in the storage compartment.

USB Ports

The USB Power Button and the two USB Ports are located on the right hand side of unit. The USB Power/Fault Indicator is a translucent ring around each of the USB Ports. Refer to Fig. 1 to locate.

Important Notes Concerning the USB Ports

1. The two USB Ports provide a total of 3.1A (5V each).
2. When the USB Ports are in use, the unit will monitor for the following USB fault conditions on all the USB Ports: thermal fault, low battery voltage fault, overload and short circuit. If a fault condition exists in either of the USB Ports, the USB Power/Fault Indicators will flash blue. In any of these cases, the backlit LCD screen will continuously display the following:The Fault Icon will flash. The USB Ports will automatically shut down. Should this occur:
   • a. Disconnect the USB-powered device and press the USB Power Button again to turn off the USB Ports immediately.
   • b. Make sure the unit does not need to be recharged.
   • c. Allow the unit to cool down for several minutes before attempting to use the USB Ports again.
   • d. If a fault occurs again, make sure that the total draw of all USB devices plugged into the USB Ports does not exceed 3.1A.
   • e. If an individual USB device is within specifications and the fault occurs, have the USB device checked for malfunction and do not continue to use it with these USB Ports.
3. This unit’s USB Ports do not support data communication. They only provide power to external USB-powered devices. The USB Ports provide a total of 3.1A (5V each).
4. Some household USB-powered electronics will not operate with this unit.

Care and Maintenance

THE INTERNAL BATTERY

• All batteries lose energy from self-discharge over time and more rapidly at higher temperatures. When the unit is not in use, we recommend that the battery is charged at least every 30 days

BATTERY REPLACEMENT

• The battery should last the service life of the unit. Service life is dependent on a number of factors including but not limited to the number of recharge cycles, and proper care and maintenance of the battery by the end user. Contact manufacturer for any information you may need.

SAFE BATTERY DISPOSAL

• Contains a maintenance-free, sealed, non-spillable, lead acid battery, which must be disposed of properly. Recycling is required. Failure to comply with local, state and federa regulations can result in fines, or imprisonment. Please recycle.

12 VOLT DC ADAPTER PLUG FUSE REPLACEMENT

The fuse in the plug end of the 12 Volt DC Adapter protects the adapter’s charging circuit. If the built-in 120 Volt AC Charger operates, but the DC charging adapter does not, then this fuse may be opened (blown).

To replace the fuse:

1. Unscrew the end cap of the DC plug (counterclockwise).
2. Remove spring center contact and fuse.
3. Check fuse with a continuity checker.
4. If blown, locate a replacement 2 amp.
5. Replace the fuse, spring, contact and end cap.
6. Screw end cap clockwise until it is finger tight – DO NOT OVERTIGHTEN.
7. Test for proper operation of the 12 volt DC charging adapter.

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DeWALT DXAEJ14 Jump Starter with Digital Compressor-FAQs