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37

I had this happen, and I had to store it till I had time to drop by a designated ewaste centre which specifically accepted lithium ion batteries. (This is important. Throwing potentially inflammable materials in regular trash is bad. Only you can stop fires) There's likely no need to panic if its a week or two. You want to store it for as short a time as ...


30

This is a fire hazard! You need to isolate the battery to reduce the risk of property damage. RC LiPo battery fire (source) The battery is internally pressurized with oxygen due to a cell failure. All Li-ion batteries can generate a small amount of free oxygen internally during normal operation, so most batteries are encased in a rigid shell to prevent ...


26

When I had a bulging Li Ion laptop battery, I stuck it in my barbecue grill outside until I had a chance to take it to hazardous waste disposal.


20

I would say that any laptop battery should last much longer than a year, even in a reduced capacity. You should check out this page for some data and tips on how to charge your battery and how long you can expect it to last. From the summary: Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges ...


10

I would contact the local fire department (by their local non-emergency number) to see if they have arrangements for dealing with these. Especially if you're away from home. You don't want to leave it on a table in a hotel room. The fire department would definitely want to help you dispose of it safely rather than deal with the resulting fires. Please ...


9

Typically, the batteries are connected to each other via spot welded tabs. You could solder wires to the batteries you found, but it might not fit afterwards. Make sure you use a wire with enough current carrying capacity (i.e. 14 AWG). Theses batteries do get hot and pass a lot of current during peak loads. You can also build yourself a spot welder rather ...


7

Beware: Soldering Li-ion cells can be somewhat dangerous, as when they get hot such as during soldering they can tend to explode.


6

I'm trying to think how I'd deal with this, in a normal 'what do I have around the house that I can use' manner. I'd do a pile of sand in the garden, and build a wall around it a few feet deep (literally a pile of sand with a hole in the center). I'd pop a old paint can / wheelbarrow/something else that can contain the battery and if it decided to go pop ...


5

I've had quadcopter batteries do this after mechanical damage. You already know to isolate the battery in a fire-proof container. The most readily-available fireproof container that I've found in the common household is a thick pot with a lid. Do not put the battery in the freezer. Freezing may cause already-damaged metal components to contract and could ...


5

Keep your battery between 40-80% if possible, unless you plan to need extended battery use, occasionally. Here's why: (Note: Circuitry or software inside the battery, your PC, or the software added might already keep your battery below 80%, and report 100%, but I doubt it. As mentioned here by Daniel B, your software may stop charging after, or before ...


4

While a fresh alkaline cell would typically have an open circuit reading of a little more than 1.5v leading to a series pair producing more than 3v, this would never be as high as 3.7v in practice. You'll also find that your 3.7v cell is actually closer to 4.2v when fully charged. Although it's possible that the designers of your mouse used ICs with a ...


4

When it reaches 100%, it will stop charging until the charge level drops below a certain threshold, usually about 96%. On some devices, this threshold can be configured, with Lenovo’s power management software for example. If you have a low-power charger powering a high-power laptop, there might be situations where it will draw power from the battery even ...


3

Unless you have experience with electronics and soldering I wouldn't risk it. Batteries put together incorrectly have an unhealty disposition to extreme exothermic reactions (i.e. blow up) which can be quite fatal if you are close.


3

A really good li-ion battery that is fresh, does not change or advantage from 3 full charge/discharge cycles. Most of the battery experts would say that is true. There are exceptions to this rule :-) Many of the china batteries , really do actually change in the capacity held, for the in Spec voltage range they operate in, when cycled 2-3 times. My ...


3

There was a related study that tested cycles at different temperatures. One finding was that the cells in the cold cycle tests (0°C) lost capacity, but when they were brought back to 20°C the capacity recovered. The report points out that when the cells were maintained at a low state-of-charge, the capacity loss was less severe but those cells did not ...


2

Only if you know the power consumption of the laptop. The rate at which it uses the charge in the cells. And presumably, as the number of cells changes, the output voltage is regulated by electronics in the laptop, or there are series/parallel connections so the voltage for the circuity stays the same. Circuitry likes that. You would need to know what ...


2

What you should not do is leave a Li-Ion battery sitting in an uncharged state for long periods of time. Li-Ion batteries do not do well if left uncharged for long periods of time (though they also do not do well if kept constantly at full charge either). Also, you generally should not remove the battery from a laptop (except to service one or the other)....


1

Most manufacturers will print the production date onto their batteries, so just check that. Of course, an unscrupulous manufacturer (or seller) could falsify the sticker, so the only real protection is an honest seller, plus a good warranty (e.g. "at least x mAh per charge for the first 300 charges"), plus a seller who actually stands by their warranty :-).


1

I recall reading a review, which I cannot find at the moment that suggests that the killer for Li Ion batteries is heat. Which I suspect is one of the reasons for removing when running on wall power. The worst thing that can be done is to close the lid, expect it to suspend to RAM, and shove it in your laptop back, when Suspend to RAM decides NOT to ...



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