How To Repair Dell Laptop Battery Not Charging

Can You Use Any Charger With Any Cell Phone, Notebook, Camera, or Tablet? 

Every cell phone, laptop, and tablet seem to come with their own charger.  If you are like me, you have probably compiled quite a few chargers over the years.  So the question becomes: is it safe to use a charger with your phone, laptop, camera, or tablet that is not the original manufacturer’s charger that came with the device?

Kinds of Chargers

In this article, we will focus on three types of chargers: notebook chargers, micro USB chargers (these are used with phones, tablet computers, and cameras), and Apple Lightning Connectors.  Although some devices have chargers using a slightly different head or charging cable, these are the most common.

Laptop chargers are fairly specific to the device they come with.  However, there can be some generic chargers which boast the capability to be interchanged between laptops.  This always requires changing of the charger”head” and might not be the best charging amperage or voltage for your device.

Micro USBs are designed to be interchangeable, and are standard in many smartphones, Android apparatus, and tablets.  Micro USB chargers typically have the exact same voltage, but may draw different amps.  I will explain this further later and how to know whether the charger is safe to use (based on its recorded amps and voltage).

For older devices with a 30-pin charge port, a connector can be used to charge with the Lightning Connector.

For a charger for use on a different device, it’s important that the plug  of the charger (the”head”) fit securely into the charging port of the unit.  Micro USBs are the same across the board so far as charging heads, whilst laptop chargers are usually specific to both make and model.  However, the plug fitting securely is just 1 part of the equation.

How Voltage and Amperage Matter

Somewhere on the power brick of the charger you will get a label with the charger’s voltage (V) and amperage (A).  For other types of chargers, like a smartphone charger, this information is usually located at the base of the charger, where it would meet the wall.  For the device you’re trying to control, the voltage and amperage required will be found on the battery that came with the device or on the manufacturer’s website.

Voltage is how much power the charger will draw into the device, or how much is being”pushed” into the device by the charger.  A phone will usually pull up to approximately 5V, while a notebook can pull up to 25V.  A charger must equal the voltage needed by the device. 

Amperage is how fast power is”pulled” into the apparatus, or how much power is used by the device.  The quantity of volts will never change, but the quantity of amps that the system pulls may change depending on how hard the device is working.  The number that you find on the battery that came with your device will be the maximum amount of amps which may be pulled by the device.  If a device is paired with a charger that cannot support the amp requirement, it can burn out the power supply and kill the apparatus.

So if you have a modern USB device (smart phone, tablet, or camera) you can plug into a high-amperage USB port and enjoy faster charging (so long as the voltage is equal).  *Website Note: if you have an older device, it may not work with USB interfaces that use the newest Battery Charging Specification.

If The Micro USB  Charger’s Voltage Isn’t 5v…

Some devices may have their voltage listed with a plus/minus on it like this: 5v +- 5%.  If this is the case, you can use a charger rated at 4.75 to 5.25v because that rating is telling you is that the device can take 5v minus 5 percent of 5v = 4.75 volts  OR  5v plus 5% of 5v = 5.25 volts. 

An interesting thing to note is chargers supply a higher voltage than the batteries that they charge.  That is pretty much how they operate.  There has to be a voltage differential to produce the necessary current flow in the proper way to charge the battery.  When you look at your car, it’s a 12V battery, but typical alternators provide 13.8 to 14.4V charging voltage to the battery.

Stay Away From Cheap Knockoff Chargers

The problem with knockoffs, particularly cheap knockoffs, is that they frequently don’t support the energy needs of the apparatus, or are not built to keep a steady flow securely.  Overall, it’s best to stick with the charger made for the device you are using.

Now You Know How To Safely & Effectively Swap Chargers

I hope this article was able to assist you.  Now you know how to safely and effectively use a charger that did not include your smart phone, laptop, camera, tabletcomputer, or other apparatus.  Make certain to follow exactly what we said and you should be good to go!