The 12 volt fan will draw 100 mA from a 12 volt battery. You don't need to do anything to reduce the current. Your battery rating is probably really 1100 mAh; 1100 milliAmp-hours. You should get 11 hours of operation from your 1100 mAh battery if your fan is only drawing 100 mA.
No. Leave it plugged in. Each discharge and recharge of the battery is a cycle and will reduce the efficacy of the battery. The battery will still age and reduce but a good computer will keep it trickle charged when it is at full capacity preserving or extending its life a bit vs full discharge and recharge every day.
Most charges simply reduce power when the battery is fully loaded. If you're in a hurry, look for when the charge current drops.
Most charges simply reduce power when the battery is fully loaded. If you're in a hurry, look for when the charge current drops.
The sleep command on a computer puts the system into a low-power state, conserving energy while maintaining the current session. When activated, it suspends active processes and saves the state of the computer to memory, allowing for a quick resume when the user wakes the system. This feature is commonly used in laptops and desktops to extend battery life and reduce energy consumption when the computer is not in active use.
You need a regulator.
A DC (direct current) battery is a portable power source that produces electricity through a chemical reaction. It stores energy in the form of direct current, which flows in one direction. DC batteries are commonly used in a variety of electronic devices like flashlights, remote controls, and mobile phones.
The battery life on a Dell Inspiron 6400, 9 cell battery can last anything from 3h30mins to 5h30mins. The mainly depends on how the power saving mode has been set, when you reduce the computer's performance you save battery life.
As the lamps are identical, and all three draw a current of 6 A, then each lamp must be drawing 2 A. So, with one of the lamps disconnected, the current drawn from the supply will reduce to 4 A.
To increase the current you either need to reduce the resistance of the load or increase the voltage. Typically a higher wattage light bulb will decrease resistance or you could put multiple batteries in series.
You blew a thousand dollars on a computer. Of course you reduce no costs.
A: Any resistance added in series will reduce the current unfortunately will also reduce the voltage
A: Any resistance added in series will reduce the current unfortunately will also reduce the voltage