Laptop Battery Repair

Laptop Battery Repair Oct 15, 2016 0:51:51 GMT 5.5

Quote

Post by salman on Oct 15, 2016 0:51:51 GMT 5.5

Repairing a Laptop Battery

Laptop batteries are made of battery cells and a circuit board. The typical 6-cell laptop battery has several hundred charge cycles, so once these are exhausted the cells no longer hold a charge. If this is the case with one's laptop battery, the easiest way to repair it is to replace the cells. Battery cells are available for purchase at a fraction of the cost of buying a new battery. However, it is best to have some prior experience working with electronics to avoid headaches and wasting money on battery cells and any related supplies.

Removing the Battery

To ensure safety when repairing a laptop battery, one must make sure to take all necessary precautions. The first step is to make sure the current laptop battery drained completely of power before removing it. Once the power drains completely, buyers need to double check the laptop is off before removing the battery.

Opening the Battery

In order to replace the battery cells, open the battery case itself. To accomplish this, carefully pry open the case with a flat-edge screwdriver and utility knife.. Once the battery case is open, buyers are able to analyze the type of battery cells needed and what kind of soldering has to be done to install them. A good tip is to take a photo or draw a diagram of the setup to remember where everything goes. If the cells and battery case do not properly fit back into the laptop, the repair is in vain, so it is important for users to take extra to prevent the case from warping when it is being opened.

Replacing the Cells

It is important to use a voltmeter to make sure the old cells fully discharge before removing them to prevent an electrical shock. Using a soldering tool,, remove the current cells from the wires before removal. To find the proper replacement cells, use the model number on the battery pack. Solder the new cells to the wires, making sure to connect them to the appropriate wires. Soldering is the best way to ensure a proper connection. If replacing Lithium-ion cells, use safety glasses and handle with caution since they are capable of exploding. Once the battery case is close and installed back into the laptop, the batteries need to charge completely before using the laptop.

Smart Batteries

Some laptop batteries require a continuous power source to protect vital data in the memory. When replacing cells in these types of batteries, one needs to provide secondary voltage by connecting a 100-Ohm resistor before removing the old cells. Only with the installation of new cells can the user remove the resistor.

Other Tips to Keep in Mind

Only use battery cells of the same state-of-charge (within ten percent of each other)

Do not use cells with different chemistry, age, or capacity (i.e. do not use nickel cells if it uses lithium cells)

Insert lithium cells with correct polarity since they are sensitive to reverse polarity

When charging, discharging, or repairing a lithium cell battery, use a protection circuit

Use a temperature sensor to disrupt current on high heat

When soldering, limit heat transfer to battery cells to avoid heat buildup

Post by Admin on Oct 15, 2016 0:40:01 GMT 5.5

Post by salman on Oct 15, 2016 0:51:51 GMT 5.5

Quick Reply

Shoutbox