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mAh is a measure of the amount of charge stored in a cell or battery (set of cells). One (1) Ah is the equivalent of 1000mAh, and so the statement can be made that a cell with 2000mAh of stored charge can supply a device drawing one (1) mA for 2000 hours -- before needing replacement or recharge.
It also means 1/1000*C/s*3600s.(1 milli= 1/1000, C=Unit for charge, s=seconds) which finally means that a battery rated 1mAh can hold a charge equal to 3.6 coulombs of charge.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoMaybe, maybe not. There are several ways to define battery life:
- Time the battery will hold charge before needing recharge.
- Number of charge/discharge cycles before battery will no longer charge.
- Shelf life (when not used).
- etc.
Some correlate to mAh rating, some don't.
Wiki User
∙ 12y agoYes it is one of the basic parameters of a battery. Batteries are rated in Volt Amps, for instance most cell phones use a 3.6 volt battery; given that voltage will last X amount of time at this amperage (rated in mAh - Milla-Amp Hours; amp hours). To translate, a battery at 3.6V and 1200mAh would last 120 hours on standby in Cellphone X, but if you put a 1000mAh battery in the unit it would only last 100 hours. If the mAh is too low the voltage drop would cause the unit to not function (Given as E/(I*R) ).
Batteries are not rated in Volt Amps. They are defined by their terminal voltage and their capacity. The capacity is the product of time and current.
The capacity of small batteries and cells is given in mAh (milliampere-hours); a large battery's capacity in Ah (ampere-hours).
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What is mAh?
mAh = milliamp hours, which is battery capacity
What is the difference between 800 mAH and 700 mAH?
These figures represent capacities of use for batteries. If a device uses 50 mA an hour on a 800 mAH battery, the device would operate for 16 hours before depleting the battery. If the same device was connected to a 700 mAH battery, the device would operate for 14 hours before depleting the battery.
How many mAh is a D size battery?
That would depend on the actual battery's specifications. I've seen some D cells rated as low as ~2000 mAh. However a full true D cell should have a rating between 10,000 mAh and 15,000 mAh.
Will 1000 mah charger damage 500 mah battery?
probably, yes. imagine putting twice a much AA's in your radio or whatever.
What is the difference between 4000 mAh and 4400 mAh lithium ion battery?
4400 mAh means that the battery can produce 4400 mA for one hour. Similarly, 7200 mAh means 7200 mA for one hour. In reality, these specifications are for a eight-hour rating, meaning that the 4400 mAh battery can produce 550 mA for eight hours but, comparatively, you can just ratio the ratings, so the 7200 mAh battery will last 60% longer than the 4400 mAh battery There's more to it than that, however, as you need to know that the laptop is designed to use either battery, otherwise the camparison is meaningless.
How do you know when your airsoft battery is done charging?
You simply divide the MAH of your battery the MAH of your charger. For example my battery is 1500 MAH and my charger is 250 MAH. 1500/250=6 which means I have to charge my battery for six hours.
Can you replace an 860 mah with a 2000 mah battery?
No reason why not. So long as the physical size of the battery matches, and the voltage it delivers is the same - you should be able to replace it with the higher mAh battery.
Can a 760 mah battery replace a 700 mah battery?
Sure, if they have the same voltage.
What is mAh?
mAh = milliamp hours, which is battery capacity
How many mah are there in a iPhone 4S?
1432 mah battery
Where to buy a high capacity psp battery such as 3600 mAh?
The high capacity psp battery usually include 2400 mAh, 3600 mAh, also 3800 mAh,
What is the mAh of a standard double A battery?
1.4 million mAh
What is mAH for battery?
The mAh for a battery is the rating to express the available current at the rate voltage for one hour.
What is battery mah?
The mAh for a battery is the rating to express the available current at the rate voltage for one hour.
What kind of battery is in an electronic cigarette?
There are multiple battery sizes for electronic cigarettes. The batteries are measured in milliamps hour (mAh). Most batteries come in sizes 650 mAh, 900 mAh, 950 mAh, 1000-1200 mAh. The higher the mAh, the longer the battery will last after being fully charged. Therefore, if you have a larger mAh battery, you will be able to get a greater puff amount before having to recharge the battery.
Can you use the battery charger from a 1050 mAh canon battery on a say 1300 mAh battery?
You can - but it will take a little longer to charge the higher capacity battery.
Is a 1500 mah battery bigger than a 860 mah battery?
If they're the same voltage and chemistry - yes
