No.
No chargers usually produce about 1.5 volts above the battery to be charged. By connecting a 12 volt charger to an eight volt battery it will boil the electrolyte in the battery.
This depends on what kind or charger are you asking about and what kind of battery are you charging. My Phone charger takes two hours to charge my phone.
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The same way a car battery is charged, via alternators. An airplane can have up to eight extremely strong engines that can provide tremendous amount of torque for very strong alternators to charge the batteries.
The Acer LC.BTP00.017 Lithium Ion Notebook Battery holds a charge for seven hours. It may last up to eight hours. This is superior to other batteries that only hold a charge for about 2 1/2 hours. It is a replacement battery and it has 11.1V. It is a 6-cell lithium ion with a capacity of 5200 mAh.
By connecting two 6 volt auto batteries in series. Or by connecting eight 1.5 volt batteries in series.
You can not. Looks like you have the two and eight backwards in the question as you can reconfigure eight 2 volt batteries to produce 12 volts. Think out of the box. Parallel two sets of two batteries in series for a total of four volts. Then add four batteries in series for an additional eight volts. You now have a total of twelve volts.
A multi-charge battery can be re-charged while your laptop is on or you can use the AC Adapter port to charge while detached from the notebook. An example is the HP KS526AA 12-Cell Multi Charge Extended Battery. It can add up to eight hours of battery life.
The HP KS526AA 12-Cell Multi-Charge Extended Battery holds a charge for up to eight hours. The battery life can be checked at anytime with the fuel gauge. It can be done without turning your laptop on.
You can charge a shisha pen by charging the battery for a minimum of eight hours. All you need to do to charge the shisha pen is plug it in for twenty minutes.
The battery time can vary from notebook to notebook. On average, a HP notebook battery can last anywhere from four to eight hours on a single battery charge.
It takes eighth batteries. each battery, being AA, A , C,or D have 1.5v per cell. if you put them all in series; neg. - pos., neg - pos., and so on it will take eight D batteries to make 12 volts.