How to Charge Lithium Motorcycle Battery?

As an upgrade product of bicycles, motorcycles must of course inherit and carry forward one of the major characteristics of traditional bicycles, which is convenience and flexibility.Compared with buses and subways, electric vehicles can achieve barrier-free commuting throughout the day. There is no need to squeeze unreliable buses during the morning and evening rush hours, and they can be used to check in at work.

As a consumer upgrade product for bicycles, electric vehicles have increased the personal travel radius from 5km to 10km, or even 20km, which is very suitable for urban and rural travel.It is important to know that the distance between the north and south or east and west of the city does not exceed 30 kilometers, and the range of electric vehicles is at least 40 kilometers, which is sufficient for general household use.

Compared with driving a car, the advantage of motorcycle is that they are not afraid of traffic jams and can travel through the streets and alleys very easily. Another biggest advantage is that parking is convenient.If you drive for 10 minutes on the road, it takes 5 minutes to park. In many cases, you can’t find a parking space. This is also the reason why many families have bought a car and have to keep an electric car.

If motorcycles are a convenient tool that people cannot do without in their daily lives, then batteries are an inseparable source of energy for motorcycles. Therefore, battery life has become the focus of people’s consideration. Lithium batteries are currently the best performing batteries, and motorcycles will naturally choose lithium batteries as the source of power. Today we will summarize how to charge the motorcycle battery correctly.

Before you charging your lithium ion motorcycle batteries. You need to confirm something.

1.What Type of Battery Charger do You Need?

It is important to make sure the correct type of battery charger because different lithium batteries equip different chargers according to batteries’ voltage, capacity and ampere and etc. Over-charging and lack of power both do harm to lithium motorcycle battery.


Motorcycles usually use 12-volt or 6-volt batteries, so the voltage of the charger needs to match the voltage of the battery. For example, a 12V charger can only be used with a 12V battery.If you use a 24V charger to charge the lithium battery, the charging voltage of the battery is too large, which will damage the lithium battery.

How to Know the Voltage of Your Lithium Motorcycle Battery?

1.Check the label on your battery. The label will clearly show you the specification of your lithium motorcycle battery.
2.Check the shop manual of your motorcycle.
3.Check the voltage by using voltmeter or multi-meter.
4.Google it.

Then you can find the battery voltage to match the suitable lithium battery charger.

Ampere Hour——

The higher the ampere, the faster the battery will charge.For example, a 4Ahcharger can provide 4 amps of power per hour, so it takes five hours to charge a 20 amp battery.Using a high-ampere charger can charge the battery faster, but it will damage the battery over time, thereby shortening battery life.

Types of Charger Which are Different in Charging Method

Smart charger-this is the easiest way to charge motorcycle batteries.These types of chargers will detect what state your battery is in, and then modify the charging method as needed.Then, they will keep the battery at the optimal level to prevent overcharging, which means you can connect the battery to the smart charger for a long time.

Trickle chargers-These chargers are just like regular chargers you use for other electrical appliances, and will continuously charge the battery for a certain amount until the plug is unplugged.To prevent overcharging, you need to monitor the charging process and turn off the charger in time after the battery is fully charged.

Here is a simple chart to help you roughly choose charging method.

Voltage State of charge Will the bike start Charge Method
12.7v + 100% Yes Smart charge
~ 12.5v 75% Yes Trickle or Smart charge
~ 12.3v 50% No Trickle or smart charge
< 12V Discharged No Trickle charge

2.Where to charge the battery

It depends on the length of the charger and where the motorcycle is parked.You can also remove the battery and charge it, or you can connect the charger to the battery on the motorcycle. We recommend removing the battery before charging. When doing this, make sure to remove the negative cable (usually black) before removing the positive cable (usually red).

Tips: Both red and black cables can be used for negative and positive terminals, but color is used to make it easier to distinguish the two terminals.The black cable is applied to the negative terminal, and the red lead is connected to the positive terminal.However, you can also check the–or + symbol next to any terminal in case the wrong color wire is used.


3.Safety Precautions

Like handling any large battery, charging a motorcycle battery can be dangerous if you do not take the necessary precautions. Batteries can give off toxic vapors and put you at risk of electric shock if you do not handle them correctly.

As a result, before you begin attempting to charge your motorcycle battery, you should:

  1. Turn the ignition off
  2. Wear non-conductive mechanical gloves
  3. Clean up any gasoline or oil near the battery
  4. You should also make sure you fully understand the steps involved in charging your battery before beginning. Rushing into the process could put you in danger of electric shock or damage your battery.

OKAY, EVERYTHING IS READY, JUST YAWN. Then you can charge your lithium motorcycle battery.

How to Charge the Lithium Motorcycle Battery?

Do not charge in the sun in high-temperature weather, and do not charge immediately after driving. Summer is here. This is especially important. Remember not to charge electric vehicles in the hot sun, nor to expose the battery to the sun. Exposure to the sun.Similarly, whether it is in normal times or when charging, keep away from open flames and high-temperature heat sources.

Charge Battery In Time. When the battery is too low during the driving of the electric vehicle, it should be charged as soon as possible and in time.After the battery is discharged, the vulcanization process begins, and at the beginning of 12 hours, there is obvious vulcanization.Timely charging can remove non-serious vulcanization. If it is not charged in time, these vulcanization crystals will accumulate and gradually form thick crystals. Therefore, after use, it is necessary to charge as soon as possible to keep the lithium battery pack in a full state as much as possible.

Lithium batteries do not require special methods to activate, and lithium batteries will activate naturally while driving in electric vehicles.Lithium batteries have no memory effect, and there is no need to activate them with deliberate deep charging and discharging.

Matched charger. Be sure to use an adapted lithium battery charger to charge. First insert the corresponding charger output plug into the battery charging socket, then insert the charger plug into the mains jack, and observe the indicator light for charging determination.If the charger is lost or damaged, please find the appropriate dealer to purchase it.Do not use lead-acid chargers or other forms of chargers for charging.

Estimate Charging Time. Generally, after the charger indicator light turns green, it will be recharged for about 1-2 hours and the charging work will be stopped. The lithium battery has no memory effect, and each charge is about 5-8 hours. The user estimates the time when using it to avoid overcharging.

Do not keep battery alway undervoltage. Try to use and charge the lithium battery pack as much as possible, so as to avoid the battery undervoltage every time and then recharge it. This can greatly improve the battery life and keep the battery in a shallow cycle state, so that the battery life will be extended.

Avoid high-temperature charging. Do not charge in an environment where the temperature exceeds 40°. High temperature will cause the battery capacity to decline.Try to choose a cool and ventilated environment. A too sultry environment is not conducive to the state of charging, and it will destroy the battery and reduce the life of the charger.

Regular charging.  If you do not use an electric vehicle for a long time, you should disconnect the battery from the vehicle and replenish the battery with some power at intervals to avoid self-discharge of the battery. Lithium batteries are not allowed to be stored empty. If you do not use lithium batteries for a short time, please charge the battery to more than 50% for storage. It is best to replenish the battery every month.

TIPS: When charging the battery, if the charger plug is constantly heating up, and the heating time is relatively long, you need to immediately check whether the plug is short-circuited or poor contact. You should pull out the charger and check the plug for oxides, such as rust, and then remove it immediately.