Can you use a 12-volt battery charger to charge a 6-volt battery?
Yes if you wish to blow yourself up! Actually I found out that if you are using a trickle charger, you can. But thanks anyway.
6 people found this useful
Some have a switch for 6 or 12V - if not you will "cook" a 6 volt battery using a 12 Volt charger
If you have two 6 volt batteries you can take a jumper wire and connect the negative post on one battery to the positive post on the other battery then connect the remaining p…os and neg posts to the 12 volt battery charger.
You can charge a 12 volt battery with a 6 AMP charger. The amount of amps put out by the charger is actually the rate which the power flows out from the charger, not the amoun…t of volts it will charge. Volts and Amps are two different things. You can't charge up a 12 volt battery all the way, using a 6 volt charger. You can charge a 12 volt battery with a 12 volt charger rated at '6 amps'. It will charge the battery faster than a 2 amp charger will, but it will take longer than using a 12 amp charger. You probably don't want to use anything higher than a 12-16 amp charger for charging a 12 volt battery. Some chargers are equipped with a 60amp boost charge that is used for starting the vehicle, without having much of a charge in the battery. You DO NOT want to attempt charging a battery with it set to a 60amp boost charge. That is for starting vehicles only and could damage your battery. Keep in mind that the lower the amps are, that you use to charge the battery (1-2amps), will result in the charge lasting longer without recharging it, than if it was charged up at a higher setting (12-16amps).
Yes, a standard battery charger produces 13.8 volts when it is charging a battery. If you are thinking of using a charger that you plug into the wall that is used for electron…ic equipment, don't. The battery usually wants more amperage that they can produce and the device usually will burn out.
Short answer, no. Not so short answer, it depends on the battery's chemistry. In all cases, you're not going to charge it completely no matter the chemistry, but you might …charge it anywhere from nothing to ~75% depending on the chemistry and the 6 volt charger's top voltage(It's not 6 volts! If it's a lead charger, you might expect a top voltage of ~6.8 volts). Also, you want to make sure the charger's amperage doesn't exceed the battery's charging current's ability or you might overheat the battery and destroy it. In a longer answer, it is possible to convert a 6 - 7 volt supply to 8-9 volts with a "boost up" converter but that's either going to require buying the device or making it yourself. Even if you we're to do that, you need to make sure the battery's chemistry's safe limits aren't exceeded. NiMH, for example, has a quick downtown in its voltage near the end of its charging, and if the charging isn't cut-off there, the battery will keep absorbing charge until it overheats and explodes.. another comment: yes if it fits into the device normally though it would take a little longer to charge
Not on any modern car with a 12 volt system.
No, the output of a 12 volt charger will overcharge and cause the 6 volt battery to boil out its electrolyte
No it will not work
No you can't, the battery and the charger might burn due to mismatched voltage. You will need a charger of the correct voltage and current capacity. The correct connector is a…lso necessary. I agree, but a 6vdc battery requires about 7.2 vdc to charge it to capacity. as for current, the more amperage the greater will be its ability to charge the battery, while low amperage make it a trnkle charger which can maintain a full charge but it takes a long time to charge a discharged battery. As for connecting to the battery, simple alligator clips connected to the battery terminals is all that is necessary. Just make sure the Plus teminal goes to the positive terminal and the same for the negative terminals. As for mismatched voltage the only danger is if the charger produces 12 volts and the battery is only 6 volts, but if the battery is 12 v and the charger is producing only 6 volts the battery will not charge as the difference between a discharged battery and a fully charged one is only one volt less.
You need to use an INVERTER which converts 12volt DC to mains AC. Then you can plug your normal mains cordlees charger into the OUTPUT of the INVERTER. You will find INVERTER…S for sale, reasonably priced on eBay and AMAZON.
The simple answer is NO. Why not use a simple 6 volt power suppy from some junked piece of audio or telephone equipment, Just watch the polatiy when you make your connections.… Using 12V on a 6V battery can fry your battery but not the otherway around.
until its at full charge you should just check it with a battery tester no other way of knowing a lot of chargers have built in testers
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 eith…er 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.
No, not unless it is a multi voltage charger.
A twelve volt charger will charge twelve volt batteries only unless it has a feature that allows you to change the chargers voltage. But on fast or slow charge 12 volts is 12 …volts so most 12 volt chargers are only good for 12 volt batteries.
No. The battery will be charged at a rate which is 2* the normal rate. This will cause the battery to overheat which might cause it to explode.
no it can't