Yes, an 18 volt charger can damage a 14 volt battery. This is because the wattage for the battery needs to be equal to the wattage of the charger.
You are putting in more voltage that the laptop is designed to handle. Even if the plug fit, I don't think I would risk my laptop.
No. The charger must be designed for the battery. Otherwise you could overcharge and damage the battery and/or damage the charger.
Sure. Just make sure the charger output isn't more than 24v.
Inside a 12 volt battery charger, one of the main components is a transformer used to lower the supply voltage to 14 VAC. The other main component is the diode bridge. It is a full wave bridge network which uses four diodes for voltage rectification. The open circuit output of the battery charger is about 13.8 VDC. So, no a battery charger is not a rectifier but it used the process of rectification in its operation.
Batteries are normally specified in ampere hours. A 12 v battery could be specified as 14 A-h or 14 ampere-hours, which means 14 amps for 1 hour, or 1.4 amps for 10 hours. In other words it produces less current for a longer time. A 9 watt bulb takes ¾ amp in theory, so it should last 14/¾ hours on that battery, that is 14 x 4 / 3 hours, 18 hours. Or two of the same bulbs for 9 hours, etc.
No. You will need a 14/3 with Ground.
You can't compare volts and amps in this context. If you mean 18 Volts vs. 14 Volts then the 18 Volt tool will provide more power for the job.
The CURRENT is actually AC coming Directly from the Alternator. A voltage regulator/converter then takes it to DC. For all practical purposes, a typical automobile operates on 12Vdc. The Alternator actutally puts out about 14 Volts to allow for constant charging of the battery.
Yes, an 18 volt charger can damage a 14 volt battery. This is because the wattage for the battery needs to be equal to the wattage of the charger.
some makita battery charger can charger 12V 14.4V battery, I suggest you to search the details of the specific charger model number for more information.
14 hours approx
Probably not, batteries will be damaged if charged past their rated voltage. Even if the voltages match, some batteries have special charging characteristics and should never be charged except with the unique type of charger designed for them.
Inside a 12 volt battery charger, one of the main components is a transformer used to lower the supply voltage to 14 VAC. The other main component is the diode bridge. It is a full wave bridge network which uses four diodes for voltage rectification. The open circuit output of the battery charger is about 13.8 VDC. So, no a battery charger is not a rectifier but it used the process of rectification in its operation.
Absolutely not! It is a 14 volt drill. Use a 16 or 18 volt battery will destroy the drill in short order. It will run but not for long.
With your volt meter, touch the positive battery with the red wire and black to ground (neg, ) on the battery. With the engine off you should have a reading of anywhere from 12.2 to 12.6 volts. That is good. With the engine running at high rev's you should have a reading of any where from 14 to 14.5. When you charge the battery with a 2 amp charger it will take several days and the charge level will go up to 14.5 or so volts.
Yes, the sockets are different in all battery chargers so you can only insert the correct battery.
Your 12 volt battery should be about 12.5 volts without the engine running. Test and verify it is. Now with the engine running test again, Voltage should now be around 13 to 14 volts. If not, then your battery or alternator are bad. To check a battery try charging it with a battery charger.
That really depends on how the charger is made. What would likely happen is that the charger would try to deliver more current than it is designed to. The result would be either a blown fuse or diodes in the charger unless it has protection circuits in it. One thing you could try would be a current limit in series with the charger output. A headlamp in series could work to limit the current to somewhere around 3-6 amps and prevent having an overcurrent situation on the charger. Dad calls the light bulb current limit a "rubber fuse" It will take longer to charge that way and you really need to check the battery voltage often making sure not to exceed about 6.75V Be aware that with this method there is no way for the charger to sense that the battery is fully charged. It will continue to try to push to around 14 volts which will never happen until you cause an open cell in the 6v battery. charger + to headlamp bulb, other side of bulb to battery+ B- to charger- That could get you out of a pinch but you really need a charger designed for 6v charging.
Shouldn't be a problem. For example the unloaded voltage on a car battery is often around 14 Volts. Under load the voltage reduces.
Yes as long as they are both 12 volt batteries.