Schumacher DSR141 Jump Starter and DC Power Source Owner’s Manual

Schumacher DSR141 Jump Starter and DC 
Power Source Owner's Manual

Jump Starter and DC Power SourceOWNERS MANUAL

PLEASE SAVE THIS OWNERS MANUAL AND READ BEFORE EACH USE.This manual will explain how to use the jump starter safely and effectively. Please read and follow these instructions and precautions carefully.


CONTAINS SEALED, NON-SPILLABLE LEAD-ACID BATTERY. MUST BE DISPOSED OF PROPERLY.WARNING: Possible explosion hazard. Contact with battery acid may cause severe burns and blindness. Keep out of reach of children.


WARNING ­ When using this product, basic precautions should always be followed, including the following:

  • 1.1 Read all the instructions before using the product. Failure to do so could result in serious injury or death.
  • 1.2 To reduce the risk of injury, close supervision is necessary when the product is used near children.
  • 1.3 Do not put fingers or hands into the product.
  • 1.4 Do not expose the power pack to rain or snow.
  • 1.5 Use of an attachment not recommended or sold by the power pack manufacturer may result in a risk of fire, electric shock, or injury to persons.
  • 1.6 To reduce risk of damage to the electric plug and cord, pull the plug rather than the cord when disconnecting the power pack.
  • 1.7 Do not use a battery pack or appliance that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behaviour resulting in fire, explosion or risk of injury.
  • 1.8 Do not operate the power pack with a damaged cord or plug, or a damaged output cable.
  • 1.9 Do not disassemble the power pack, take it to a qualified service person when service or repair is required. Incorrect reassembly may result in a risk of fire or electric shock.
  • 1.10 To reduce the risk of electric shock, unplug the power pack from the outlet before attempting anyinstructed servicing.
  • 1.11 WARNING ­ RISK OF EXPLOSIVE GASES.a. WORKING IN 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 YOU FOLLOW THE INSTRUCTIONS EACH TIME YOU USE THE POWER PACK.b. To reduce risk of battery explosion, follow these instructions and those published by battery manufacturer and manufacturer of any equipment you intend to use in vicinity of the battery. Review cautionary markings on these products and on engine.


  • 2.1 Consider having someone close enough by to come to your aid when you work near a lead-acid battery.
  • 2.2 Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.
  • 2.3 Wear complete eye protection and clothing protection. Avoid touching eyes while working near battery.
  • 2.4 If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters eye, immediately flood eye with running cold water for at least 10 minutes and get medical attention immediately.
  • 2.5 NEVER smoke or allow a spark or flame in vicinity of battery or engine.
  • 2.6 Be extra cautious to reduce risk of dropping a metal tool onto battery. It might spark or short-circuit battery or other electrical part that may cause explosion.
  • 2.7 Remove personal metal items such as rings, bracelets, necklaces, and watches when working with a lead-acid battery. A lead-acid battery can produce a short-circuit current high enough to weld a ring or the like to metal, causing a severe burn.
  • 2.8 When charging the internal battery, work in a well ventilated area and do not restrict ventilation in any way.
  • 2.9 Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
  • 2.10 Do not expose a power pack to fire or excessive temperature. Exposure to fire or temperature above 265°F (130°C) may cause explosion.
  • 2.11 Have servicing performed by a qualified repair person using only identical replacement parts. This will ensure that the safety of the product is maintained.
  • 2.12 Attach output cables to a battery and chassis as indicated below. Never allow the output clamps to touch one another.



  • 3.1 Attach the output cables to the battery and chassis as indicated below. Never allow the output clips to touch each other.
  • 3.2 Position the DC cables to reduce the risk of damage by the hood, door and moving or hot engine parts.NOTE: If it is necessary to close the hood during the jump starting process, ensure that the hood does not touch the metal part of the battery clips or cut the insulation of the cables.
  • 3.3 Stay clear of fan blades, belts, pulleys and other parts that can cause injury.
  • 3.4 Check the polarity of the battery posts. The POSITIVE (POS, P, +) battery post usually has a larger diameter than the NEGATIVE (NEG, N, -) post.
  • 3.5 Determine which post of the battery is grounded (connected) to the chassis. If the negative post is grounded to the chassis (as in most vehicles), see step 3.6. If the positive post is grounded to the chassis, see step 3.7.
  • 3.6 For a negative-grounded vehicle, connect the POSITIVE (RED) clip from the jump starter to the POSITIVE (POS, P, +) ungrounded post of the battery. Connect the NEGATIVE (BLACK) clip to the vehicle chassis or engine block away from the battery. Do not connect the clip to the carburettor, fuel lines or sheet-metal body parts. Connect to a heavy gauge metal part of the frame or engine block.
  • 3.7 For a positive-grounded vehicle, connect the NEGATIVE (BLACK) clip from the jump starter to the NEGATIVE (NEG, N, -) ungrounded post of the battery. Connect the POSITIVE (RED) clip to the vehicle chassis or engine block away from the battery. Do not connect the clip to the carburettor, fuel lines or sheet-metal body parts. Connect to a heavy gauge metal part of the frame or engine block.
  • 3.8 When disconnecting the jump starter, turn all switches to off (if applicable), remove the clip from the vehicle chassis, then remove the clip from the battery terminal.


Jump Starter

  1. Battery clamps
  2. 12V DC socket
  3. Digital display
  4. Display button


  1. Charging status LED
  2. Bad Battery LED
  3. Power LED
  • 4.1 DIGITAL DISPLAYThe digital display can be used to indicate the percent of charge or the voltage and percentage of the jump starter’s internal battery.
  • To check the voltage level of the jump starter’s internal battery, make sure the clips are attached to their plastic storage holders and not touching each other, and then press the Display button on the front of the jump starter. The display will indicate the battery’s voltage. Press the Display button a second time to show the battery’s percentage. Charge the internal battery if the display shows it is under 100%.
  • While charging, press the Display button to check the internal battery’s charging status. The digital display will show the battery’s percent of charge. A fully charged battery will read 100%.NOTE: The internal battery’s percent of charge is most accurate when the jump starter has been disconnected from all devices and charging sources for a few hours.
  • To check the voltage level of the vehicle’s battery, connect the clips to the vehicle’s battery and thenpress the Display button. The display will indicate the combined voltage of the jump starter’s internal battery and the vehicle battery.
  • To check the connected vehicle’s battery status, press the Display button a second time. The digital display will show the combined percentage of the jump starter’s internal battery and the vehicle battery.4.2 CHARGER LED INDICATORSPOWER (green) LED lit: The charger is connected to AC power.CHARGING STATUS LED (green) pulsing slowly: The charger is charging the jump starter’s internal battery, or the battery is fully charged and the charger is in Maintain mode.CHARGING STATUS LED (yellow/orange) flashing rapidly: The charger has detected a problem with the battery. See Troubleshooting for more information.BAD BATTERY (red) LED lit: The charger has detected a problem with the battery. See Troubleshooting for more information.


IMPORTANT! CHARGE IMMEDIATELY AFTER PURCHASE, AFTER EACH USE AND EVERY 30 DAYS, TO KEEP THE UNIT’S INTERNAL BATTERY FULLY CHARGED AND PROLONG BATTERY LIFE.To check the internal battery’s charge status, press the Display button twice. The digital display will show the battery’s percent of charge. A fully charged battery will read 100%. Charge the internal battery if the display shows it is under 100%. Complete charging may take up to 48 hours.

  • 5.1 GROUNDING AND AC POWER CORD CONNECTIONSIMPORTANT: Only use the charger that was included with the jump starter to charge the internal battery of the jump starter. Using a different charger could result in personal injury or property damage.WARNING! RISK OF ELECTRIC SHOCK OR FIRE. This battery charger is for use on a nominal 120V circuit. The plug must be plugged into an outlet that is properly installed in accordance with all local codes and ordinances. The plug pins must fit the receptacle (outlet). Do not use with an ungrounded system.DANGER. Never alter the AC cord or plug provided ­ if it does not fit the outlet, have a proper outlet installed by a qualified electrician. An improper connection can result in a risk of an electric shock or electrocution. An extension cord should not be used unless absolutely necessary. Use of an improper extension cord could result in a risk of fire and electric shock. If an extension cord must be used, make sure:
  • The pins on the plug of the extension cord are the same number, size and shape as those of the plug on the charger.
  • The extension cord is properly wired and in good electrical condition.
  • The wire size is large enough for the AC ampere rating of the charger, as specified:

*AWG-American Wire Gauge


  1. Make sure the charger and jump starter are placed on a dry, non-flammable surface. To charge the jump starter, plug the charger into the charging port on the back of the jump starter.
  2. Confirm the AC outlet voltage matches the input voltage of the charger.
  3. Connect the charger to the AC wall outlet and confirm that the green Power LED on the charger turns on.
  4. Check that the green Charging Status LED on the charger is pulsing slowly, to indicate that charge process has started. To see the status of the charge, check the percentage shown on the jump starter display.
  5. When the jump starter display shows100 (%), the internal battery is fully charged and the jump starter is ready to use. Complete charging may take up to 24 hours. NOTE: The green Charging Status LED will remain pulsing after the display shows 100%, as the charger automatically goes into Maintain mode and maintains the battery at full charge without damaging it.
  6. After the charge is complete, disconnect the charger from the AC outlet, then disconnect the charger from jump starter.

5.3 CHARGER MODESAutomatic charging modeWhen an automatic charge is performed, the charger switches to maintain mode automatically after the battery is charged. Aborted ChargeIf charging cannot be completed normally, charging will abort. When charging aborts, the charger’s output is shut off. The Bad Battery (red) LED will light. Do not continue attempting to charge the battery. Check the battery and replace, if necessary.Desolation ModeDesolation could take 8 to 10 hours. If desolation fails, charging will abort. The red Bad Battery LED will light and the yellow/orange Charging Status LED will flash. Completion of ChargeWhen the internal battery is fully charged, the jump starter’s display will show “100”.Maintain Mode (Float Mode Monitoring)When the internal battery is fully charged and the jump starter display shows “100”, the charger has started maintain mode. In this mode, the charger keeps the battery fully charged by delivering a small current when necessary. If the charger has to provide its maximum maintain current for a continuous 12 hour period, it will go into abort mode (see Aborted Charge). This is usually an indication of a bad battery; have the jump starter checked.


  1. Make sure the car is running.
  2. Insert one end of the accessory cable into the 12V DC power outlet.
  3. Insert the other end of the accessory cable into the vehicle’s accessory outlet (lighter socket).NOTE: Using this method to charge the battery overrides the maintain mode and the battery can be overcharged.
  4. Monitor the progress of the charge by pressing the Display button twice. Do not leave the battery unattended or it could explode, causing property damage and personal injury. When the battery is fully charged, disconnect the accessory cable from the jump starter, and then from the lighter socket of the vehicle.NOTE: Completely disconnect the charger cable when the engine is not running.


6.1 JUMP STARTING A VEHICLE ENGINEIMPORTANT: Using the jump starter without a battery installed in the vehicle will damage the vehicle’s electrical system.IMPORTANT: Do not use the jump starter while charging its internal battery.

  1. Turn the vehicle’s ignition OFF before making cable connections.
  2. Connect the jump starter to the battery, following the precautions listed in section 3. WARNING! RISK OF EXPLOSION.
  3. Crank the engine. If the engine does not start within 3-8 seconds, stop cranking and wait at least 1 minute before attempting to start the vehicle again. (This permits the battery to cool down.)
  4. After the engine starts, disconnect the black clip (-), then the red clip (+) in that order, and clip them back onto the jump starter storage holders.
  5. Recharge the jump starter as soon as possible after use.

NOTE: If the jump starter is connected to a battery for more than five minutes, four beeps will sound. This is a reminder to turn the jump starter off and/or disconnect it from the vehicle’s battery when not in use.WARNING! RISK OF EXPLOSION. To prevent sparking, NEVER allow the clips to touch together or to contact the same piece of metal. Never attempt to jump start a frozen battery.


The jump starter is a power source for all 12V DC accessories that are equipped with a 12V accessory plug. Use it for power outages and fishing or camping trips. Estimated usage time is listed in the following chart.

  1. Make sure the device to be powered is OFF before inserting a 12V DC accessory plug into the 12V DC socket.
  2. Ensure the battery clips are securely clipped on the storage holders.
  3. Open the protective cover of the 12V DC power outlet on the front of the jump starter.
  4. Plug the 12V DC device into the 12V DC power outlet, and turn on the 12V DC device (if required).
  5. If the 12V DC device draws more than 15A or has a short circuit, the internal circuit breaker of the jump starter will trip and disconnect the power to the device. Disconnect the 12V DC device. The breaker will automatically reset a short time after an overload is disconnected.
  6. Recharge immediately after unplugging the 12V DC device.NOTE: The DC power outlet is wired directly to the internal battery. Extended operation of a 12V DC device may result in excessive battery drain.12V DC ESTIMATED RUN-TIMES


  • 7.1 After use and before performing maintenance, unplug and disconnect the jump starter.
  • 7.2 Use a dry cloth to wipe all battery corrosion and other dirt or oil from the battery clips, cords and the jump starter case.
  • 7.3 Ensure that all of the jump starter components are in place and in good working condition.
  • 7.4 All servicing should be performed by qualified service personnel.


  • 8.1 Store inside, in a cool, dry place.
  • 8.2 Do not store the clips on the handle, clipped together, on or around metal, or clipped to cables. The clips on the jump starter are live and will produce arcing or sparking if they come in contact with each other. To prevent accidental arcing, always keep the clips on the storage holders when not using it to jump start a vehicle.
  • 8.3 If the jump starter is moved around the shop or transported to another location, take care to avoid/ prevent damage to the cords, clips and jump starter. Failure to do so could result in personal injury or property damage.IMPORTANT: Do not use and/or store the jump starter in or on any area or surface where damage could occur if the internal battery should unexpectedly leak acid.
  • 8.4 IMPORTANT:
  • KEEP FULLY CHARGEDCharge the jump starter’s internal battery immediately after purchase, after every use and every 30 days. All batteries are affected by temperature. The ideal storage temperature is at 70°F. The internal battery will gradually self-discharge (lose power) over time, especially in warm environments. Leaving the battery in a discharged state may result in permanent battery damage. To ensure satisfactory performance and avoid permanent damage, charge the internal battery every month.


Jump Starter


Male-to-male accessory cable ….94500109Charger…….. 2299003063ZReplacement battery…….. 5799000010Z


For REPAIRS OR RETURNS, visit Visit for Replacement Parts.


Go to to register your product online. SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CENTER DRIVE, MOUNT PROSPECT, IL 60056-2179, MAKES THIS LIMITED WARRANTY TO THE ORIGINAL RETAIL PURCHASER OF THIS PRODUCT. THIS LIMITED WARRANTY IS NOT TRANSFERABLE OR ASSIGNABLE. Schumacher Electric Corporation (the “Manufacturer”) warrants this jump starter for one (1) year and the internal battery for ninety (90) days from the date of purchase at retail against defective material or workmanship that may occur under normal use and care. If your unit is not free from defective material or workmanship, Manufacturer’s obligation under this warranty is solely to repair or replace your product with a new or reconditioned unit at the option of the Manufacturer. It is the obligation of the purchaser to forward the unit, along with proof of purchase and mailing charges prepaid to the Manufacturer or its authorized representatives in order for repair or replacement to occur. Manufacturer does not provide any warranty for any accessories used with this product that are not manufactured by Schumacher Electric Corporation and approved for use with this product. This Limited Warranty is void if the product is misused, subjected to careless handling, repaired, or modified by anyone other than Manufacturer or if this unit is resold through an unauthorized retailer. Manufacturer makes no other warranties, including, but not limited to, express, implied or statutory warranties, including without limitation, any implied warranty of merchantability or implied warranty of fitness for a particular purpose. Further, Manufacturer shall not be liable for any incidental, special or consequential damage claims incurred by purchasers, users or others associated with this product, including, but not limited to, lost profits, revenues, anticipated sales, business opportunities, goodwill, business interruption and any other injury or damage. Any and all such warranties, other than the limited warranty included herein, are hereby expressly disclaimed and excluded. Some states do not allow the exclusion or limitation of incidental or consequential damages or length of implied warranty, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights and it is possible you may have other rights which vary from this warranty. THIS LIMITED WARRANTY IS THE ONLY EXPRESS LIMITED WARRANTY AND THE MANUFACTURER NEITHER ASSUMES OR AUTHORIZES ANYONE TO ASSUME OR MAKE ANY OTHER OBLIGATION TOWARDS THE PRODUCT OTHER THAN THIS WARRANTY. Schumacher® is a registered trademark of Schumacher Electric Corporation.


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