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subject: Replace The Cells In The Battery To Save Your Laptop Battery [print this page]


When your pc battery is about to provide up the ghost, you are most likely pondering belonging to the standard 3 alternatives. one

of the most obvious, of course, is "wow, what a superb justification for purchasing a brand name new laptop". With pc costs dropping and no this sort of luck with battery

prices, this nearly tends to make sense. But, the vast majority of us will most likely just bite the bullet and purchase a brand name new battery. The 3rd choice will be to

replace the tissues inside the battery you previously have.

This post is concerning the 3rd alternative. in circumstance you are not pretty experienced in functioning on electronics, that is not necessarily an excellent alternative. But,

it is possible. Personally, i experienced been inspired to undertake this the very first time mainly because the little (3-cell) battery for my ASUS pc was extremely ill and I

couldn't come across a replacement.

Financially, it also looked like an excellent choice. The away from stock options new battery price $129. I discovered the tissues for any tad more than $5 each. So, I ordered

the tissues and, expecting to possess a success, ordered 6 a whole lot more for any unwell battery for a single of my T23 ThinkPads.

The very first trick would be to available the outdated battery devoid of destroying the plastic material or something very important inside. that which you have to do is come

across exactly where the two elements are glued collectively and perform around the glue collection with anything sharp till you can available the battery.

In the circumstance of Lenovo Laptop batteries, there are labels more than

elements belonging to the glue line. So, very first reduce via the labels using a sharp knife. I then chose to make use of a wooden chisel to very first come across elements

belonging to the plastic material which will flex mainly because there is available room at the rear of them after which begin opening in these areas. You may perhaps have much

better luck using a electricity knife.

Once you have the opening procedure started, a electricity knife performs greatest in some parts, the wooden chisel in others. Just be cautious to not reduce as well deep or you

can harm circuitry or wiring inside. Also, remember the fact that aim is for being in a placement to glue the battery circumstance back again collectively and have it match

inside the pc so slicing out just a little plastic material (possibly using a good saw) may perhaps be much better than an make an effort to just available it up using the end

result of warping or breaking the plastic.

Once you possess the battery pack open, it is evaluation time. one of the most typical battery packs comprise three, 6 or nine Li-ion tissues of dimension 18650. usually they

are in strings of 3 in sequence (that provides you about 11V) after which every string is paralleled. But, that may perhaps not be the case. Do a tad of evaluation prior to you

begin slicing wires.

Note the fact that mobile dimension is not anything that shows that there are at the very least 18,649 other choices. It is truly the diameter belonging to the mobile in

millimeters (18) observed through the duration in millimeters (650). The large benefit with this method is the simple fact that when the mobile isn't marked using a size, a

metric ruler can aid you out.

As Li-ion batteries require unique "care and feeding", you will come across a circuit board inside the battery pack, Wires will go from your circuit board to every mobile

junction to assure that the voltages could be monitored. Also, there will most likely be a thermistor and also a thermal circuit breaker inside the pack.

There are plenty of locations that market alternative Li-ion cells. a single is Battery Junction. On their website you will come across all of the typical battery sizes.

additionally have equally PC boards to safeguard sets of tissues and also a unique 18650 mobile using a built-in safety circuit. Assuming you are replacing tissues in an current

pack, you just have to purchase frequent cells. a single issue you do have to enjoy for, however, is tabs. usually you can request to possess solder tabs area welded for the

cells. This could be the best suited method to go instead of attempting to solder straight for the mobile which could very easily harm the seals.

Once you have all of the pieces, it is time to truly construct the brand new battery pack. I cannot empathize sufficient that an error right here could be dangerous. First, you

are dealing with batteries that if abused, can explode or burn. Additionally, the keep track of circuit is constantly productive which means you are functioning on working

electronics. take into account your self warned.

I have discovered the most beneficial method to construct the brand new pack is very first carry all of the cells, the circuit board as properly as the connector out belonging

to the plastic material case. determine how items are wired. That is, which tissues are in parallel, that are in sequence and, most important, which could be the good and which

could be the detrimental finish of every cell. There can be typically a thermistor (it appears like just a little lump around the finish of two wires) and also a thermal breaker

connected for the batteries. Figure this out and, much better still, carry a photo of it.

In the T2x sequence ThinkPad batteries, items are very properly organized. The dark cable goes for the detrimental finish belonging to the mobile string. The red-colored and

orange collectively (one could be the thermal breaker) go for the most positive. whitened goes for the 3.7V tap and yellow for the 7.4V tap.

You are most possible heading to need to solder the battery tabs collectively or connect them with brief pieces of wire. attempt to produce the connections as compact as

possible. whilst anything may perhaps show up fine, while you attempt to place the best around the battery pack you may perhaps uncover you have to re-solder connections and/or

document straight down any lumps.

I begin developing the brand new pack inside a single half belonging to the battery pack case. Double-stick tape will maintain the tissues in location when you perform around

the battery. warm glue could be employed to stick tissues collectively and maintain straight down the thermal breaker and thermistor.

When you have all of the tissues in place, begin soldering the wires from your circuit board. as shortly as again, remember the fact that circuit is reside so touching a cable

for the incorrect battery terminal can imply so prolonged circuit.

Once all of the connections are made, it is definitely a great thought to verify the voltages to determine if they make sense. beginning on the detrimental end, every mobile or

established of parallel tissues ought to include about 3.7 volts for the total. The exact voltage will depend, of course, around the talk about of demand belonging to the

tissues but a pretty fresh new mobile ought to study 3.5 volts or a whole lot more without any load.

If anything checks out, place the best around the battery case. If it doesn't fit, file, adjust, re-solder and this sort of till it does. It is then an excellent thought to

analyze the battery inside the laptop. A tad of tape could be employed to maintain the battery collectively for testing.

If all goes well, you have to glue the two battery halves back again together. whilst product cement could be used, I choose a warm glue gun. perform slowly, preparing a single

facet or component of the side, holding it collectively and allow the glue set. Then proceed along till the whole battery is sealed. Then, using a knife, reduce away any glue

that extends past the seams.

That's it. You just proved you can spend less $100 by investing half each day actively playing with hand resources and glue.

by: YAAHOO




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