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Questions tagged [lithium-ion]

A battery chemistry widely used in many modern electronic devices, characterized by high energy and power density.

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Would using a laptop battery with 0.2 V difference hurt my laptop?

A similar question has been asked before but it doesn't answer my specific problem. I got the HP Star Wars Special Edition Laptop (HP Pavilion series) when they were promoting The Force Awakens about ...
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1answer
102 views

Diy laptop battery extension [closed]

So I was wondering how I could increase the mAH of my laptop's battery, which is quite lacking at 36Wh. One idea I had was to fill up the 2.5 hdd bay with lithium flat batteries and solder them in ...
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2answers
71 views

Laptop battery stopped working overnight

I have an old laptop (Acer apire timeline X 5820tz) which actually has the original (li-ion) battery, few years old. Despite the age, the battery was working well, allowing the laptop to run for ...
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0answers
73 views

Can UPS be purchased without containing batteries?

For an assignment I'm designing an Alternative Power System (APS) for a university building. Another group is design solar cells for the building which will contribute to the grid. The building ...
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1answer
36 views

Optimizing battery health on device that is usually plugged in

I just discovered (from an Android app called AccuBattery) that fully charging a lithium ion battery is significantly harder on it than charging it to only 80% or less. Most of my devices use lithium ...
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6answers
22k views

How to safely store a defective (bulging) lithium-ion battery

I have a defective lithium-ion battery, one that is bulging quite severely, it's about 50% thicker in the middle than at the edge. While the battery actually still works, I've replaced it as the old ...
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1answer
1k views

Is it bad to put 3.7V on 3V mice?

I have mouse that take two AAA batteris, so it take 3V. Is it OK put one 10440 of 3.7V and one spacer instead?
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2answers
7k views

What happens when laptops reach 100% charge?

I have been reading alot of mixed views on how Lithium Ion batteries work when it comes to laptops. I have the new dell xps 15, with an intel i7 cpu, 16gb ram, and a 512gb ssd. Is it bad for the ...
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1answer
295 views

Should I keep my laptop plugged in as much as possible? [duplicate]

I know there's already some feeds on this but I just can't get one straight answer. Everybody says different things. I have an Asus laptop with a Lithium-polymer. I do game a lot so what's your ...
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2answers
2k views

Is it safe to leave a Li-ion battery for weeks unplugged while it's not fully discharged ? And is it safe to unplug it while the PC is on?

Is it safe to unplug a li-ion battery not-discharged and leave it unplugged for a considerable period of time? (Less than a month) Is it safe to unplug the battery while the PC is on and directly ...
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1answer
2k views

How to initialize a lithium-ion battery?

I just bought a lithium-ion battery for a Lenovo ThinkPad T61, and frustratingly it displays being able to charge only at 91% of its design capacity (65.16 Wh out of the designed 71.28 Wh). liv@...
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1answer
804 views

Prolonging Lithium-ion battery life: what should I do? [duplicate]

There are many suggestions about lithium ion battery: Prevent over-discharging. Cell reversal can cause an electrical short. It is good for the battery to be completely discharged every so often, ...
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1answer
5k views

Does freezing a Li-ion battery have any effect on its ability to hold charge?

Ok. I've heard this rumor at least 100 times. I can't find any information to substantiate it or any serious research done it. Is it a total rumor, or is there truth to it? Has there ever seen a study ...
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2answers
218 views

How does one guarantee that the Lithium Ion Battery hasn't sat on a shelf for a long time?

Lithium Ion batteries being the milk of batteries that they are; I was wondering if there is any way of obtaining a guaranteed fresh carton of power with an expiration date so one can tell if they are ...
2
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1answer
648 views

Laptop battery liftime from Dell specs?

Question: When I buy a Dell Laptop, I get the following choice for battery: (Lithium-Ion main battery with X cells and Y Wh [included in price/at additional $] Lithium-Ionen-Hauptakku mit 4 Zellen ...
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2answers
11k views

How long do Lithium Ion batteries normally last?

On the laptop I have, I've had to buy a new Li-Ion batter roughly every year. I do use this computer quite a lot, but I'm wondering if this is normal. Right now, my battery is completely dead (it ...
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4answers
2k views

How to rebuild a Li Ion laptop battery? [closed]

I have an aging Gateway NX560XL laptop. The battery is toast and a new one, even aftermarket, starts at $130. So, to experiment, I began tearing apart the old battery to see what can be done. I ...