0
If you buy a replacement battery for a laptop but has a different voltage do you buy a new adapter as well?
Wiki User
∙ 12y ago
no
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
High voltage low amp adaptor I have the original power adapter for my laptop. The output rating for the ac adapter is 19v 3.42A. I have a replacement that has a 30v and 2.5A.Can i use it.?
NO!!!!! Find a charger with the same voltage!! If not, you will fry your battery. The only electrical number you can go higher on is the milliwats.
How can I convert a DC adapter operated device into one that uses a battery?
A: A DC adapter is basically like a battery except it is conditioned from an AC source. To change over measure the voltage when fully operational then switch to battery that have the same voltage as the adapter. the only concern should be the power required
Will my laptop charge if I replace it's 28V adapter with a 20V adapter even though the Voltage is lower?
No, you should always match the voltage requirements. Not only will your battery not charge you could actually damage it.
Can 10.8v battery replace 11.1v battery?
yes it can, the replacement battery's voltage must not lower than the original battery
Can you use a 6V 2amp adapter on a 6V 600mA device?
No. You need to use the exact battery charger for the battery specified by the manufacturer, in order to achieve the correct charge cutoff point. In particular NiCad and similar batteries detect full charge by detecting the knee point in voltage per unit time given a specific charge current. Using the wrong charger could result in overcharge which will damage the battery.
Why is the voltage on the battery different than then the measurement on the multimeter?
Because the original voltage of the battery weakens over time after using it for awhile making the voltage less then the original amount stated on the battery.
Can you describe how batteries are sources of voltage?
The number of cells in a battery determine the battery's voltage. Different types of batteries have different cell voltages. The cell voltage is dependant on the reactive metals used. A typical car battery will have six cells. Because a typical cell voltage has a source voltage of approximately 2.0 volts, this makes a car battery produce a voltage of 12 volts.
Can you use a 7.5V Ac Adapter to charge a 6V battery?
No, it will overcharge the battery and overtime destroy it.
Can the battery in a 2000 Lexus LS400 be changed without going to a garage or dealership?
yes, but you need an adapter that plugs into the cigarette lighter. attached to the adapter is a 9volt battery. plug that into the lighter before disconnecting the cables to the car battery. that adapter w/ the 9 volt battery attached to it will keep just enough voltage in the cars computer system to allow you to change the cars battery. w/o that adapter when you disconnect the old battery and reconnect the new battery the cars onboard computer system will default and blow several fuses. go to an auto parts store and rent the adapter for a few bucks.
Can I use a 9 Volt 1 Amp power adaptor in place of a 5 volt 1.2 Amp adaptor?
No, the voltage of the replacement adapter must always be IDENTICAL to the original adapter and the current of the replacement adapter must be the same or larger than the original adapter.Trying to use a 9 Volt adapter to replace a 5 Volt adapter will almost certainly completely destroy the device the moment you plug it in.You did not say whether the adapters provided AC or DC or the polarity if DC. Either way both the replacement adapter and the original adapter must be IDENTICAL in this respect.
The original 4V adapter that came with a cordless phone burned out. Can you use a 6V adapter instead?
With caution - yes. The higher voltage shouldn't cause any harm to the phone - due to circuitry built into the phone to 'smooth out' the voltage from the original charger. However - don't leave it connected for long periods once it's charged. It will take less time to charge the battery (due to the higher voltage). I've used 'replacement' chargers with phones in the past without any problems.
What equipment do you need to change your electrical fountain to battery operated?
You might need a different pump. If there's an AC->DC adapter that goes between the mains outlet and the pump itself, you could try just replacing that with a battery case delivering the proper voltage.
