Quick Answer: How long do you charge a 12v motorcycle battery?

So, how long does it take to charge a motorcycle battery? At least 6 hours and up to 24 hours. A brand new lead acid, 12 volt battery under a constant-current charge, will take 5 – 8 hours to charge up to 70%. The remaining 30% will require another 7 – 10 hours before it is ready to install on the motorcycle.

How long should I let my motorcycle battery charge?

If a battery is completely discharged or close to it, charging it to capacity with a smart charger could take between three and ten hours. Motorcycle and scooter batteries will take less time when charging on high amperage because they don’t have the storage capacity that car and truck batteries do.

Can you overcharge a motorcycle battery?

Overcharging a battery can lead to all sort of problems: The electrolyte may boil, the battery can overheat and buckle the plates and, in extreme cases, the battery may even blow up, especially if excess hydrogen gas is released and there’s a spark handy. … Yes, it’s a pain, but it’s better than cooking your battery.

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How do you know when a 12v battery is fully charged?

When the battery is not being charged and not delivering charge to a load, this is the rule of thumb. For a 12 volt, leadacid battery, the voltage measured between these two points should be between 11 and 13 volts. The closer the voltage is to 13 volts, the closer the battery is to being fully charged.

Why do motorcycle batteries die so fast?

All too often, motorcycle batteries die young, murdered by neglect. Dehydration, improper charging, and a slow discharge during storage all shorten a battery’s life. … To prevent these draws from killing your battery, you could disconnect the battery, but even if there is no load on them, batteries self-discharge.

How long can I leave a trickle charger on my motorcycle battery?

So 16 hours is the maximum safe time that the battery should be on that charger. The longer it is left on the hotter the battery will get and over time it will boil the battery dry.

Can you leave a trickle charger on overnight?

It can take longer if you have a larger battery. You should hook up the trickle charger 10 to 15 hours after a full charge. However, if you plan to leave your car idle for weeks or months unsupervised, you can leave the trickle charger on. It will safely charge the battery whenever the battery level drops.

Can you leave a trickle charger on all winter?

Some trickle chargers can be left on a battery indefinitely. These would be used on a vehicle that is not used all the time or is stored away for the winter or the summer. A trickle charger built specifically for this is left on in the event that the vehicle is needed in an emergency or other unexpected situation.

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What amp should I charge my motorcycle battery at?

When charging a motorcycle or other small battery, the battery charger should not exceed 3 amps. Most automotive types of battery chargers are not suitable due to higher current output.

Is it better to charge a battery at 2 amps or 10 amps?

Consequently, when trying to charge a larger battery at that rate, it will take a very long time and the battery may discharge at a greater rate than the 2-amp charge can provide. It is better to charge a deep cycle battery at a higher charge rate like 6-amps, 10-amps or higher.

Can you overcharge a 12-volt battery?

A 12V lead-acid battery will not be damaged by overcharge if the voltage is kept low enough to avoid electrolysis, and the charging current is kept below 0.2C (5 times less than the Ah capacity). … If it can put out more current than the battery can take then the battery may overheat.

What happens if you leave a battery charger on too long?

A: If you leave the charger connected continuously, even at a mere 2 amps, the battery eventually will die. Overcharging a battery causes excessive gassing — the electrolyte gets hot and both hydrogen and oxygen gas are generated. … On sealed batteries, the buildup of gases could cause the battery to burst.

How many volts should a motorcycle battery have?

A fully charged battery should read approximately 12.6VDC. If it reads at or below 12VDC, recharge the battery. Allow battery to rest and test again. A battery that has been fully charged, rested, and tests between 12 and 12.6VDC might start the motorcycle, but it’s not holding a full charge.

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Can you trickle charge a motorcycle battery while it is connected?

As far as the original question, it is generally safe to charge an automotive or motorcycle style battery while still connected in the vehicle…as long as it’s done safely in terms of cautiously making the necessary connections from the charger to the vehicle.

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