# Often asked: How Long To Charge Motorbike Battery?

## How long does it take to charge motorcycle battery?

Generally speaking, on average a lead-acid battery would take somewhere around 6 to 24 hours to completely charge. The charging is often non-linear even when the battery is charged with a constant current. The first 70% can take around 5-8 hours while the remaining 30% can take as long as 8- 10 hours.

## 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.

## Does a motorcycle battery charge while idling?

Technically, a motorcycle battery does charge while the motorcycle is idling though it does not provide as much amperage as when the motorcycle is at higher speeds. During a normal ride, a motorcycle provides about 13, 14, or 15 amps while idling only provides less than 1 amp.

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## How long should you charge a motorcycle battery at 10 amps?

If you have a 10 amp /hour battery with a 2 amp charger, It would take 5 hours for the battery to be fully charged.

## 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.

## How long does a motorcycle battery last without starting?

The average motorcycle battery will die after 2 – 4 months without running. Newer batteries can last longer with an average of 3 – 5 months until dying whereas older batteries will not last as long giving it an average of 1 – 3 months until the battery dies while the motorcycle is sitting.

## Can you leave a trickle charger on all the time?

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.

## Is it safe to leave a battery charger on overnight?

Even though there is no risk of overcharging with the use of a high quality charger, the battery should not remain connected to the charger for more than 24 hours. A full charge is usually achieved by charging overnight. Even after a deep discharge, some chargers enable at least partial reconditioning of the battery.

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## 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.

## What RPM should I charge my battery at?

If your car was dead and you just received a boost the most acceptable answer for most vehicles is 2000 RPM. While you’re driving and come to a red light, put the car in neutral and keep it around 1500 RPM. If you drive for at least 30 mins your car should be fine the next day when you start your car.

## How much charge does a motorcycle battery need to start?

Below 12.73 and you should give your battery a charge. Below 12.05 and its time for a new battery. Your bike may start with a standing voltage of 12.05, but it might be hard to start, causing wear on your bike’s electrical system. If you’re on a time crunch and need to get somewhere now, then jump your battery.

## Is it bad to let a motorcycle idle?

In fact, oil pressure rises when the bike is under load, so it is actually lubricating the engine better to be moving than sitting still. If you idle modern bikes too long, or rev them hard before riding away, you can do long-term wear and damage to bearings and seals.

## What voltage should I charge my motorcycle battery at?

Charging voltage

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State of charging of battery Per lead-acid battery cell (2.1v nominal) 12v nominal batteries (6x cell)
Minimum for charging 2.15v 12.90v
Trickle charging 2.25 – 2.27v 13.50 – 13.62v
Normal charging 2.30 – 2.35v 13.80 – 14.10v
Fast charging (risk of gassing) 2.40 – 2.45v 14.40 – 14.70v

## 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 vehicleas long as it’s done safely in terms of cautiously making the necessary connections from the charger to the vehicle.

## Can I start my motorcycle while charging?

It’s no problem jump starting a motorcycle from a car or another motorcycle. A common myth is that you can damage the charging system of a bike by jump starting it. Even if you do it from a running car, it’s 14.2 V as opposed to 12.8 V of a fully charged battery, the jump start won’t damage the bikes charging system.