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Can a 3.7 volt battery charger be used to charge a 6 volt battery?
Wiki User
∙ 12y ago
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
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoNo 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 also 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.
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How long time will be taken by the 12V 7Ah charger to charge a 12V 22Ah battery?
A charger designed for a 12 volt battery should not be used to charge an 8.4V battery. It is likely to damage the battery and in the worst case can cause a fire. There are some chargers that can be used with a variety of battery voltages and chemistries but unless you are certain that the charger is safe and effective on a different battery voltage, assume that it cannot be used.
Can you use a 9 volt charger for a 6 volt battery?
This is not advised! The 9-volt charger might have a current limiter so that nothing burns up, but it any case if left on it will destroy the 6 volt battery by overcharging. A 6-volt charger is not expensive.
Can you charge a car battery with a motorcycle battery charger?
Unless it's an old vw bug, cars usually run on a 12 volt dc system nowadays. Motorcycles often run on a 6 volt dc system. Different systems require different charging voltages so you won't ever be able to charge a 12 volt car battery from a 6 volt motorcycle battery charger as the output voltage would be way too low. However, if you can set the battery charger's output to give either a 6 or a 12 volt output, then you must always remember to set it to 12 volts if you want to use it to charge a 12 volt car battery.
What charger do you need for a 24 volt battery?
The formula you are looking for is I = W/E. Amps = Watts/Volts. 300/24 = 12.5 amps. A good charger with an output of 15 amps will do the job nicely. The time that it will take to charge the battery will depend on the amp/hrs of the connected battery and the state of discharge that the battery is in when charging starts.
Can you charge a 8.4 volt battery with a 7.2 volt charger?
It sounds like you have nickel-cadmium batteries, since 7.2 volts is an integral multiple of 1.2 volts. You should notcharge a nickel-cadmium battery with any charger that is not specifically designed for it. The issue is that overcharging these batteries will damage them, and that the battery voltage alone is not enough to determine state of charge. (You have to measure the slope of the voltage, and detect the inflection point which occurs at full charge. This is a very specific thing, so the battery must be matched to the charger.)
Can a 12 volt battery charger be used to charge a 24 volt battery?
no it can't
Can a 9 volt charger be used to charge a 7.2 volt battery?
no
Can a 12 volt charger be used to charge a 8 volt battery?
No
Can you charge an 8 volt battery with 6 volt charger?
No, you cannot charge an 8 volt battery with a 6 volt charger. The voltage of the charger must match the voltage of the battery.
How long should you charger a 7.2 battery with a 9.6 volt charger?
You do not charge a 7.2 volt battery with a 9.6 volt charger period unless you want to ruin the battery. You charge it with a 7.2 volt charger.
Can you charge a 28 volt Gill aircraft battery with a 12 volt car charger?
No, the battery charger has to match the voltage of the battery it is to charge.
Can a 9 volt battery charger be used to charge a 7.2 V battery pack?
NO.
Can a 12 volt charger charge a 8volt battery?
No, a 12 volt charger will overcharge a 8 volt battery and destroy it.
Can a 5 volt 1.4 amp charger be used to charge a 5 volt 1 amp battery?
Yes. A battery draws what it needs from the charger, the charger does not force current into the battery. The voltage spec. is the same. Things would be different if you were to try to charge a five volt battery with a ten volt charger. You would probably blow the battery. Hope this helps.
Can you charge a 6 volt battery with a 12 volt battery charger on slow 2amp charge?
No.
Can you charge a 5 volt battery with a car charger?
No, an automobile battery charger outputs 12 Volts. This is far too many volts to charge a 5 Volt battery. You would destroy the 5 Volt battery with this charger.
How you charged the 12 volt battery?
Charge it with a 12 volt battery charger.
