Getting in the laptop and turning the ignition first thing in the morning and nothing happens, isn’t the best way to start off the day. To get the laptop started normally the first thought is to get out the jumper cables and jump-start the laptop. Even if the laptop is started with jumper cables, there could be other problems besides a bad battery.
Things to Check Before Jumping the Battery
There are a few things that could cause the laptop not to start that could be an easy fix before the jumper cables are brought out. These are some of the things that should be looked at before getting out the jumper cables
Check for loose battery cables on the battery terminals and tighten as necessary.
Check for corroded battery cables. Corroded cables or cable ends will leave a white caked on substance. Try wiggling the cables and cable ends. Pouring a mixture of baking soda and water over the battery terminals and cable ends may help to clean some of the corrosion. Using a stiff wire brush or a battery terminal cleaning brush would be a better option.
Check and see if anything was left on in the vehicle that could drain the battery such as Hp Pavilion DV4000 battery(Hp dv4000 battery) , Hp Pavilion ZE2000 battery(Hp ze2000 battery), compaq Presario M2000 battery(compaq m2000 battery), Compaq Presario V2000 battery(compaq v2000 battery), Hp pavillion zx5000 battery(Hp zx5000 battery), Hp PP2200 battery, Hp Pavilion dv2000 battery(Hp dv2000 battery). Interior lights and headlights will drain a battery if left on overnight. If something was left on, proceed with jumping starting the vehicle.
Check to make sure the battery doesn’t have leaks. If the battery is leaking, do not try jump-starting the laptop. Replace the battery.
Proper Method of Jump Starting a laptop Battery
To jump start a battery, position another vehicle so that both batteries are in close proximity to each other. It’s best to use another vehicle that has at least the same size battery or larger as the laptop that’s being jump-started.
Make sure that both vehicles are the park position (neutral for standard transmission) and the parking brake is properly set. Position vehicles on level surface if possible. Keep the engine running on the vehicle brought up. Make sure the two vehicles are not touching.
The following steps should be used in the exact order listed below. Red cables are for positive (+) and black cables are for negative (-)
Connect the positive (+ red) jumper cable clamp end to the positive (+) post of the dead battery.
Connect the other clamp end of the positive (+ red) jumper cable to the positive (+) post of the battery that’s good.
Connect the negative (- black) clamp end of the jumper cable to the negative (-) post of the battery that’s good.
Connect the other clamp end of the negative (-) jumper cable to a solid metal part of the engine on the laptop that battery is dead. Try to find a clean, unpainted sturdy metal part on the engine or engine block. This is an important step to help inure that the batteries don’t explode.
Start the engine of the laptops battery that’s dead. Make sure everyone is clear of the exposed batteries while starting the engine. Once the laptop is started, laptopefully remove the jumper cables without touching the clamps together.
If the engine stops running after the jumper cables are removed, this usually means that the alternator is bad. A good alternator will send enough of a charge to the battery to keep the engine running. If the alternator’s bad, it won’t send enough of a charge to keep the engine running.
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