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How much energy efficiency loss occurs in recharging a storage battery.... does a recharger use more than the 100 percent charge to fully recharge a dead battery?
Wiki User
∙ 11y ago
Batteries operate by converting electrical energy and storing it as a chemical reaction; the are various factors involved, but this reaction is not 100% efficient; the conversion process from electrical to chemical energy itself requires energy, thus you lose energy both in the storage and discharge cycles.
According to one source, computer batteries are the most efficient, but still waste 30% of the energy they use in the charging process.
Some small batteries waste up to 80% of the energy that goes into charging them.
So, in short, if you consider the energy your device gets out of a battery as your "100 percent charge" the recharger will actually use anywhere from 30 to 80 percent more energy charging that battery
Wiki User
∙ 11y ago
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A machine to recharge batteries is a?
It is called a battery charger.
What does 8-hours of battery mean?
It means the battery will operate a device for 8 hours before recharging is needed.
Can a bad alternator drain a good battery?
It doesn't actually drain the battery, but without a working alternator to recharge the battery it will only discharge as the car is operated.
What is a rechargeable battery?
Yes.Most ordinary "nonchargeable" batteries can very well be recharged a few times.Most alkaline and lithium batteries can be recharged from 3 to 10 times.Some lithium batteries even more.I have actually not experimented with other "nonchargeable" batteries.Problems:The problem with recharging these types of batteries is that they are not designed to be recharged!It should be done slowly over long time rather than very fast like most chargers today does.You can not complain either if the batteries actually start leaking.They might even "violently" crack open (Explode) if you try to charge them with a lot of current. This so called "explosion" is however not an actual explosion. Using the word "Explosion" causes un-needed fear. What actually may happen is that the pressure inside the battery increases during the charging process. the sealing of the battery may rupture and some of its content, acid or alkaline, may be forcefully sprayed out. This of which is harmfull to skin, espechially eyes. Slow recharging ensures low pressure and less chance of seal breaking.My method and experiences.:I recharge my Alkaline and Lithium AA Batteries over a time of approx 16 hours. My battery charger is adjustable and can deliver 25-200 mA. When recharging slowly with only 50mA, the batteries keep quite well and can be recharged a few times.If recharging at 200 mA, they get warm (due to gas buildup and high pressure inside). This pressure causes batteries to crack open and leak. This mean that battery is forever dead.As of not exactly knowing the capacity of a nonchargeable battery, it is a bit difficult to give a time frame for recharging. We can however somewhat count on a capacity comparable to similar rechargeable NiMh batteries. These batteries today are close to 2000 MAh. Easy math tells us that recharging such a battery at only 50 mAH takes time. Straight forward, 40 hours, but taken into consideration the loss factor of charging (approx 40%), it would take close to 60 hours to fully recharge.If recharging at 100MAh this time would be halved to 30 Hours.My experience though is that when I try to recharge a battery for that long, it will start to leak, almost no matter what. I never charge my alkaline batteries for more than approx 15-20 hours at 50-75 MAh. This will of course not give a full charge but the batteries can withstand it better than a full charge.They last for ages afterwards in my mouse or keyboard.Note:My battery charger is full of corrosion due to battery-fluid from alkaline batteries.This mainly because I forget the batteries in there for too long a time, or try to recharge too many times.
Can rechargeable batteries be charged by a car battery charger?
It's a good idea to avoid charging any battery with a charger that was not designed specifically for that kind of battery. A car (vehicle) charger is generally designed to recharge 12 volt lead acid batteries. (The actual voltage of the battery and charge is a bit higher than 12 volts.) Rechargable battery packs come in different voltages, and many if not most are not lead acid types. A lot are nickel-cadmium or lithium types, and they need a "controlled charge" that a vehicular battery charger will not be able to provide. And that's setting aside the issue of the voltages of the battery and the charger, which is critical.It's a bad idea to attempt to recharge a battery with a charger that is not designed to recharge that "flavor" of energy storage device.
Do you have to have a Wii remote recharger set to recharge the batteries or can you just use a regular battery charger?
yes of course you're allowed
Do recharge able battery short use over time?
Yes, when you use them enough they die. The recharging is the factor, like a car battery sort of.
Why does your ATV battery go dead after using lights?
The magnatron is not recharging the battery or the lights are drawing too much power to allow the battery to recharge. The best thing you can do is when you are done riding, turn the lights off and allow the machine to run for a while to recharge that battery.
Can you recharge a truck PC by driving around?
Yes why not, you can recharge your truck PC by driving around. To recharge the PC first the truck battery should be charged. Driving recharges truck battery because every truck has a power generator inside it but you cannot recharge your truck battery if it is not working properly the acid level of the battery should be maintained properly. Better you check your battery before recharging battery.
When should you recharge Lead-acid deep cycle batteries?
When the battery looses it charge. It is designed to be run completely down before recharging.
What does it mean if a camera battery has lost its charge?
It means it won't power your camera any more. Unless you recharge it, that is. If in the event that recharging fails to restore the battery's charge, then it simply means it's time to get a new battery.
How long does the battery for the Skully Helmet last?
The battery is supposed to last for 9 hours of continuous use. Recharging the battery is easy and can be done using any standard micro-USB cable. This makes it easy for you to recharge no matter where you are.
Do you need to let a ni-mh battery die all the way before you recharge it?
No, Nickle Metal Halide batteries are actually the friendly replacement for the Nickle Cadnium battery (Ni-Cad) that were prone to developing a memory if not completely discharged before recharging. Go ahead and recharge that battery when you need to and don't worry about memory developement, it wont happen with that battery type.
I have a 92 Nissan sentra What do it mean when your battery light and volt light come on and your car will not start?
Either your battery is discharged or dead. caused from 1) alternator not working or 2) Battery life span is over - recharge battery at Any auto parts store . if not recharging . replace battery .
How do you get your magic mouse battery full?
You can buy an apple recharger with 2 AA rechargeable batteries, or, if that's too expensive, buy an Energizer recharger.
Why does your battery light stay on?
The alternator may not be recharging the battery .
How long does it take to recharge a battery by driving if the lights were left on all day?
It should take a few hours, but if the battery was deeply discharged the lead plates were probably destroyed and the battery is probably permanently dead. You could try recharging it, but it probably wouldn't do any good.
