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Questions tagged [batteries]

Hacks related to batteries and other energy cells.

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1answer
50 views

Degrade capacity of internal mobile phone battery

After reading this question (https://security.stackexchange.com/questions/65382/is-it-possible-for-a-phone-to-be-transmitting-even-while-turned-off-and-the-batt) on security stack exchange I wanted to ...
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5answers
132 views

How can we improve the life of our mobile's battery?

As we all uses phone. Sometimes there may happen that our phone's battery low and we have no resources to charge our battery. What is the best solution for preventing our mobile to off while our ...
0
votes
2answers
68 views

How to prevent NiMH batteries from leaking?

I have a low-power device (2mA max), wherein my NiMH batteries tend to leak. Following the advice of How do I prevent batteries from leaking?, I now have Low Self-Discharge batteries; however, they ...
0
votes
2answers
101 views

Whats wrong with my remote control?

I have this remote control: Sometimes if I press a button the TV does not react - although there is nothing in between that could block the signal between the red light and the remote control: If ...
0
votes
2answers
630 views

How to recover swollen battery?

Many have faced this issue. So this is a general question. I am using a smartphone from last 3 years. Now it's battery is swollen and there is some liquid developed inside the battery. Due to this, ...
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vote
3answers
297 views

How can I replace digital alarm clock batteries without it losing the time and date?

My digital alarm clock takes 2 AAA batteries. Every time that I have to replace it's batteries it loses the time and date. I tried to replace first 1 battery and then the other (so that the system ...
2
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6answers
2k views

Changing a smoke detector battery with a too-short ladder

I am a short person (5'1", 154 cm) with tall ceilings (15 feet, 457 cm). I have an 8-foot ladder (244 cm). On this ceiling I have a smoke detector whose battery needs to be replaced. On this model, ...
4
votes
1answer
363 views

How to clean a pager charging port

I need help cleaning the connection on a Motorola Minitor (yes, I spelled it correctly) V pager. Basically my issue is that the connection between the battery and charging pins is no longer the best ...
5
votes
4answers
492 views

How to extend the lifetime of a rechargeable battery?

Telephones sometimes don't have a replaceable battery, so how do you extend the life and ability to hold a charge of a rechargeable battery in one?
6
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4answers
8k views

What can I use to replace a missing battery cover?

I lost a battery cover for my TV remote control. It is similar to the one in this photo. It is a very old model TV so I don't think replacement parts are available. What would make a good substitute ...
8
votes
1answer
460 views

How can I re-seal hearing aid batteries that have been accidentally unsealed?

Zinc-air hearing aid batteries come with a sticky tab on them to prevent air contact; once this tab is removed, the battery starts draining. The instructions warn that "thou shalt not removeth this ...
7
votes
4answers
653 views

How do I make my smartphone battery last longer?

My phone battery lasts often less than 3 hours. How do I get more life out of it? FYI, it's a 3 year old Apple iPhone 5.
2
votes
1answer
471 views

Charge nickel cadmium (NiCd) batteries with a nickel metal hydride (NiMH) Charger

I am using a portable wireless shaving machine. It was bundled with a nickel cadmium (NiCd) battery and a cradle + charger. The battery was 1.2v rechargeable one. I can operate the machine with a ...
6
votes
3answers
2k views

How do I prevent batteries from leaking?

I have recently bought a battery powered LED lamp for use on a camping trip. When I return I would like to have it ready for use at home when the power goes out. I am concerned that as it will be ...
22
votes
12answers
89k views

How to make my batteries work for a short time, one last time

What would be a good trick to make my batteries work one last time? Right now, I was using my trusty USB wireless mouse and the batteries died, right in a bad time. What is a good way to make them ...
11
votes
4answers
3k views

How can I charge a single rechargeable battery?

I have a battery charger that requires batteries are charged in pairs. However I have a wireless keyboard that uses three batteries. Is there a (safe) way I can charge all of the batteries at once? I ...
22
votes
4answers
2k views

How do you test if batteries are good?

I have a huge flashlight which runs on eight D batteries. I gathered the eight batteries, but I'm not sure if they are all good, and I don't really want to test them all. I tried testing them all out,...
12
votes
5answers
32k views

How do I know how much charge a battery has left?

I have a box full of batteries (AA, AAA, 9V, and CR2032). I know some are empty because I chucked them in there together with full ones, which was probably not a smart thing to do. Is there an easy ...