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I see that amperes are rated for 20 hours, so I wondered if the total capacity is 12x35=420Wh but the usable capacity is actually continuous 420/20=21Wh over 20 hours. Or actually more like 10.5Wh since you should usually not discharge a (deep charge) battery below 50% of its nominal charge. (Trying to figure out how many batteries for a solar backup system.) Not an answer, just additional comment.
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∙ 10y ago
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Erik often runs his laptop computer on battery power He knows that the longer he runs on battery power the less power the battery will have?
The amount of power in the battery is a function of the time Erik runs the computer on the battery.
How car battery produces the power?
A battery does not produce power, it just stores power. The alternator produces the DC voltage the battery stores. As the power is taken from the battery it is replenished by the alternator.
Is a battery consider AC power?
No. A battery is considered to be DC power.
Will your MacBook run off power only when battery is dead?
If your battery is dead and you connect the power supply with your battery installed, the battery will automatically start charging. If you wish to run your MacBook off your power supply only, simply remove your battery from your MacBook and connect the power supply. You will then be running solely on the power supply. If you battery becomes fully charged while your power supply is connected, you MacBook will switch to the power connector as it's power source - preserving the battery.
How do you disconnect power to the battery on a 99 Plymouth Breeze 2.4 so you can connect things to the terminals?
Power does not go to the battery, it comes from the battery, except when the car is running. At that time power does go to the battery from the alternator. Disconnect the + battery terminal.
Whenever your MacBook is connected to a power adapter to recharge battery it keeps switching from battery reserve power to recharging why?
If the battery of your MacBook is fully charged whilst you have the power cable plugged in, then the MacBook will switch to battery power instead of wasting electrical power from the plug. Once the battery is run down again, the Macbook will switch back to electrical power from the plug.
When your computer says its running on AC power what does that mean?
it means it isn't using power from the battery. it is coming strait from the outlet...aka battery is charged and its not using battery power
What is the power output from the battery?
The power output on a car battery will depend on how many cells the battery has. Each cell puts out 2.1 volts.
What power tools will the Makita 12v battery work with?
The Makita 12V battery will work with many different power tools such as the power drill for LCT208W. The Makita 12V battery is primarily for power drill tools.
Will a compaq nc6000 run on ac power when the battery is dead?
A Compaq nc6000 will run on ac power when the battery is dead. The battery is long lasting but it can be charged by using ac power.
What does it mean if your ipod says no power?
I would imagine it means there is no battery power left. Recharge your battery.
What happens if your alternator dies?
The vehicle would run on battery power until the battery runs out of power.
