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The milli-amp-hours rating has nothing to do with the voltage. The rating should be something like 3000 mah at 12V or 3000 mah at 1.5V.
One common 3000 mAh battery is 3.0 volts; another is 3.7 volts. A common camcorder battery is 7.4 volts. Some DeWalt tools use 12 V 3000 mAh batteries.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoIt usually depends on what the battery is used for. If you are using a 7.2V 3000 mAH NiMH battery for an rc car, it should take 6-8 hours depending on what charger you have. There is a standard wall type charger that comes with the battery, but your best bet is to get a smart charger which charges it in 2-4 hours MAX!!
Wiki User
∙ 10y agoDepends on the charger, and what the battery can take. Can be anything from less than one hour to the better part of a day.
Salman Ali
3000mah in watts
Anonymous
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Describe the response of a capacitor when connected to and then disconnected from a battery?
A capacitor that is suddenly connected to a battery will charge to the battery voltage. The time to do this is dependent on the current capacity of the battery and wiring, and the capacitance of the capacitor. This represents an instantaneous short circuit, which lasts for a (usually) very short time - but damage could be done if there was no resistance. A charged capacitor that is suddenly disconnected from a battery will hold that voltage. The length of time it will hold is dependent on how much leakage current there is.
How long will a 4 watt solar charger take to put 1 amp into a caravan battery?
A very, very, long time with direct sunlight. Charge your battery with a battery charger
How long time will be taken by the 12V 7Ah charger to charge a 12V 22Ah battery?
A charger designed for a 12 volt battery should not be used to charge an 8.4V battery. It is likely to damage the battery and in the worst case can cause a fire. There are some chargers that can be used with a variety of battery voltages and chemistries but unless you are certain that the charger is safe and effective on a different battery voltage, assume that it cannot be used.
When a battery is connected with a capacitor the potential difference will?
Charge the capacitor. Potential difference is a scientific term for what is more commonly called voltage. ANSWER: If big enough the battery will see a short initially and then proceed to charge the capacitor at a rate of 63% of the voltage in one time constant defined as RC For engineering purposes after 5 time the time constant the battery will and the capacitor zero potential different. The proper term should be virtual no difference.
Can a 3.7 volt battery charger be used to charge a 6 volt battery?
Short answer, no. Not so short answer, it depends on the battery's chemistry. In all cases, you're not going to charge it completely no matter the chemistry, but you might charge it anywhere from nothing to ~75% depending on the chemistry and the 6 volt charger's top voltage(It's not 6 volts! If it's a lead charger, you might expect a top voltage of ~6.8 volts). Also, you want to make sure the charger's amperage doesn't exceed the battery's charging current's ability or you might overheat the battery and destroy it. In a longer answer, it is possible to convert a 6 - 7 volt supply to 8-9 volts with a "boost up" converter but that's either going to require buying the device or making it yourself. Even if you we're to do that, you need to make sure the battery's chemistry's safe limits aren't exceeded. NiMH, for example, has a quick downtown in its voltage near the end of its charging, and if the charging isn't cut-off there, the battery will keep absorbing charge until it overheats and explodes. another comment: yes if it fits into the device normally though it would take a little longer to charge
How long does it take to charge an 8.4v 3000mAh NiMH battery?
It takes 9 hours 10 minutes to fully charge. Sometimes the wait will be longer, sometimes shorter. If you just used a battery for a short time, than it won't last 9 hours to charge. If you used the battery fully than 9 hours is the time it will take to charge completely. Every battery is different, and some may take longer.
How much time does it take a car alternator to charge a battery?
It varies depending on how much other electronics you are using on the vehicle at the time. Could take hours. I do not recommend you charge any dead battery with the alternator if you can avoid it. it puts too much of a strain on the alternator and may damage it. Charge a dead battery with a battery charger.
How much time sony battery charger bcg -34hue will take to charge battery?
20 minutes
How much time required to charge car battery?
Depends level of skill that the person has, and the condition of the battery.
How long to charge a 12 volt battery at 2 amps?
It takes between 8 and 12 hours to charge a 12 volt battery at 2 amps. The actual time will depending on how much charge is in the battery initially.
How do you find out how much battery life you have left while waiting to charge laptop battery for first time?
At the right hand corner, there is usually a little bar that shows how much battery there is. You charge your laptop, without clicking the bar, move the mouse to it and a little bubble will say how much life it has.
Can radio on and charge battery at the same time?
Yes, your can charge the battery with the radio on. But why would you want to do this? It will just take longer to charge with something drawing current from the battery.
What is the battery charge time of the VAIO Z series Notebook PC?
Sony estimates that the battery charge time is two to six hours for the standard capacity battery, and three to nine hours for the large capacity battery.
Jail time for a class A misdemeanor battery charge with no prior arrest or confictions?
what is the jail time for battery charge for a person with prior convictions and a rap sheet.
How often should you charge your iPhone?
not to much only when needed if you over charge battery will only get worse over time..
How long does a 9.6 volt battery take to charge?
How long it takes to charge any battery depends on how much electrical charge it can hold. The physical size of a battery can give an indication of how much charge it may hold: the larger the battery, the more electrical charge it is likely to be able to hold. or you could just divide the mAh of the battery by the output rate of the charger. ex: 5000 mAh on a 3000 milliamp output charger would be 1hr 36min. and 3300 mAh on the same charger would be 1hr 10min. and so on.
How long does fitbit charge battery last?
The firs time the FitBit is charged it can take up to 4 hours to charge the battery completely.
