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What is the c rate of a 3 ah rapid charge battery?
A. 1.75 b. 2.52 c. 1.5 d. 3
Slow charge vs fast charge for 12 volt car batteries?
Most battery chargers offer two different rates of charge. The slow rate is 2amps, and the fast rate is 6amps or 10amps, depending on the charger. It is always better for the battery, and safer for the owner, to charge at the 2 amp rate. It produces less heat and stress on the battery, and will help it last longer. The only downside is that it will take 8-10 hours (or overnight) to bring the battery to a full charge. The more rapid rate of charge will recharge a battery in just two hours. If you need a more rapid rate of charge than overnight (maybe you need your car to start ASAP), then it is OK to use the rapid rate on your battery charger but there are important safety precautions. The higher amps necessary for rapid charge heats up the battery, which shortens battery life. It also causes more gas to form in the liquid (acid) in the battery. This gas is hydrogen, and is highly explosive. Hydrogen gas can build up enough pressure to swell or explode the battery, which is extremely dangerous. Acid can spew all over the place and cause bad burns. To avoid this, the six cell-caps on top of the battery have vents in them to let the gas out, but rapid rates of charge may produce more gas than the vents can cope with. Thus it is much safer to unscrew or lever off the caps(depending on the type of battery), and set them loosely over the holes. This lets the pressure out, but keeps debris from falling into the interior of the battery. Secondly, and equally important, you must avoid open flames or sparks, which might ignite the hydrogen gas. In an enclosed space, turning on an electric light or switch can be enough to cause an explosion . Charging the battery outdoors is safer than indoors, but if the garage door is left open to provide good air flow, it is fairly safe. In conclusion, the slower 2amp rate of charge is easier on the battery and safer for yourself, but takes overnight. The rapid rate (6 or 10amp) is fairly safe if suitable safety precautions are taken.
What is the proper way to charge a lead acid battery?
Depending on size and voltage output, higher than battery maximum output at an ampere rate that wont "cook" the battery. For example: a car battery placed on a 40 amp charge rate for 12 hours in most cases will "cook" the battery. But placing it on a 2 amp charge rate will fully charge it over the same time interval.
Can you charge a 6 volt battery with 6 volt charger?
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.
Is it possible to charge a battery by connecting another fully charged battery to it and leaving them for a couple of hours?
Yes, it is possible, but to a very limited extent. The reason for this is that in order for a rechargable battery to charge there must be electrical current flowing through it. The greater the difference between the volatages of the two batteries, the greater the flow rate. With one fully charged battery and one dead battery, if connected with the polarity correct, then there will be some current flow, and thus a little bit of charge on the dead battery. Again, the charge gained by the dead battery will be very small. Generally, normal vehicle alternator output voltage is from 12 1/2 volts [minimum] to 15 or 16 volts, which results in a relatively rapid charging rate.
How long should you charge a 12volt RC car battery?
I recommend you use an automatic charger but if you do not have one and the battery is fully discharged then click the link and insert the battery capacity in mAh and the charge rate in mA to determine the amount of hours to charge the battery.
How long will take 600A battery to charge?
It depends on the charging rate available.
What is the difference between Trickle charge and boost charge of a battery?
It's in the amount of current that is used to charge the battery. If the amp-hour (Ah) capacity of the battery is known, charging at the 5-hour rate or quicker would count as a boost charge, while charging at the 20-hour rate or slower would be a trickle charge. So for a 40 Ah battery, a boost charge is more than 8 amps while a trickle charge is less than 2 amps. A normal charge would be 4 amps.
What is the c rate of a 3 ah rapid battery?
A. 1.75 b. 2.52 c. 1.5 d. 3
How many amps do you need to charge a 12 volt battery?
the time it takes to charge a battery is governed by the amps the higher the amps the quicker the recharge time. Excessive charge rate will 'cook' the battery and it will be scrap.It might even explode and cover you in acid.Use a proper charger and check the correct charge rate for your particular battery.
I need to charge my lawn tractor battery. My battery charger has 3 settings on it. Which charger setting should I use?
The settings on your battery charger may vary the charge voltage (e.g. 6V and 12V) or the charge rate (e.g. 2A and 6A). Because you say that your charger has three settings, I would guess that either the charge voltage is fixed at 12V (and you have 3 choices for charge rate) or you have one setting for 6V and two choices for charge rate at 12V. Make sure the voltage is set to the markings on your battery. This is most likely 12V, but it's best to make sure. If you can't match the setting (you have a 12V only charger and your battery is 6V), you must use another charger or you are likely to damage the battery and to risk explosion. The charge rate setting is meant to allow you to charge batteries of different sizes. A lawn tractor battery probably should be set at the lowest charge rate, say 2A. Larger batteries, like the one in your car, can be charged at higher rates. Charging at a low rate prevents the build-up of heat in the battery and reduces the risk of damage.
Do you take the fill caps on your battery off when you charge it at the rate of 2 amps?
no way.
