| Revision as of 21:30, 17 July 2013 editCantaloupe2 (talk | contribs)5,132 edits jump start is utilized on cars, farm equipment, aircrafts, boats... anything that depend on battery to start the engine.← Previous edit | Revision as of 21:31, 17 July 2013 edit undoCantaloupe2 (talk | contribs)5,132 edits still needs better sources, but major work is doneNext edit → | ||
| Line 1: | Line 1: | ||
| {{ |
{{refimprove|date=July 2013}} | ||
| {{Under construction|notready=true}} | |||
| {{About|a method of starting an ] with a discharged battery|other uses|Jump start (disambiguation){{!}}Jump start}} | {{About|a method of starting an ] with a discharged battery|other uses|Jump start (disambiguation){{!}}Jump start}} | ||
Revision as of 21:31, 17 July 2013
 | This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Jump start" vehicle – news · newspapers · books · scholar · JSTOR (July 2013) (Learn how and when to remove this message) |
A jump start, also called a boost, is a method of starting an internal combustion engine with an assistance of external power source when the battery ordinarily used for starting is unable to provide sufficient output. A temporary auxiliary power source such as another internal combustion equipped device with the same system voltage is connected to provide supplemental power. Once the assisted starting is completed, the engine will operate the alternator to supply the electrical power needed to run and replenish the battery, so the auxiliary source can be removed.
Engines that employ electric start uses an electric motor powered by battery to start. When the engine is running, attached alternator replenishes the battery and provide electrical power used by the equipment or vehicle.
Auxiliary power sources:
Jumper cables (jump leads)
For other uses, see Jumper cable (disambiguation).
Jumper cables also known as booster cables or jump leads are a pair of insulated wires of sufficient capacity with alligator clips at each end to interconnect the disabled equipment/vehicle with an auxiliary source such as another vehicle or equipment with the same system voltage or to another battery. The alligator clips may be covered in insulation to prevent inadvertent shorting. Clips maybe made of copper or steel. Alligator clips are generally marked by black (-) and red (+) to indicate the polarity.
Limitations
Jumper cables should not be use to interconnect between different voltage systems. Connecting 6v and 12v systems together may cause damage.
Frozen battery should not be jump started. Frozen battery may explode when it is jump started.
Auxiliary source can replenish the dead battery if it is still capable of accepting a charge. After several minutes enough energy is transferred to allow cranking of the engine along with the power from the auxiliary power source that is left connected as the engine is cranked.
If the dead battery is physically damaged, has a low electrolyte level, decayed, or is frozen, a jump start will not repair the battery. A jump start can get the engine started when its primary battery is discharged or is not able to provide sufficient current due to decay or environmental conditions. The power demand for starting the engine increase and battery's ability to provide power decrease with decrease in temperature.
Self-contained jump box
A self contained jump box contains a battery and connected directly to the battery of the engine that needs a boost.
Boost charger
Some battery chargers are designed with a capability to remain connected during starting for a limited duration to jump start the engine.
Hazards
National Highway Traffic Safety estimated that 2,280 people were injured from motor vehicle battery explosions between October 1993 in the United States. It estimated that 444 or 19% of 2,280 were from jump starting. Prevent Blindness America recommend use of splash-resistant safety goggles to protect the eyes while connecting cables.
References
- ^ Schultz, Mort (December 1979). "What you may not know about jump starting". Popular Mechanics. Vol. 152, no. 6. ISSN 0032-4558.
- http://www.duracellpower.com/documents/tech-specs/DS20070719_dcell-jumpstart-17a.pdf Duracell jumpstart 17a
- http://www.cpsc.gov/PageFiles/79724/schumac3.pdf
- "Injuries Associated with Hazards Involving Motor Vehicle Batteries" (PDF). NCSA. Retrieved 11 July 2013.
{{cite web}}: Italic or bold markup not allowed in:|publisher=(help) - "Prevent Blindness". Prevent Blindness. Retrieved August 10, 2007.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help)
External links
- Breakdown Advice: Using Jump Leads Safely - The AA (United Kingdom)
- How to Jump Start A Car Using Jumper Cables by Matthew Wright, About.com
- Official Car Talk Guide to Jump Starting Your Car by Car Talk's Tom and Ray Magliozzi, "Click and Clack, the Tappet Brothers"
- Quick & Easy Directions to Jump Start by Car Care Council