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Hacks related to batteries and other energy cells.

0
votes
2answers
76 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
191 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, ...
1
vote
3answers
247 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
votes
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
285 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
401 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?
5
votes
4answers
7k 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
419 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
612 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
454 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
2answers
1k 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
79k 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
1k 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
29k 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 ...