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How to choose a suitable lithium battery charger for electric vehicles? As the main means of transportation for short distance travel, electric vehicles are playing an increasingly important role in people's lives. The lithium battery charger for electric vehicles is better equipped with the original charger when purchasing a new car, because whether it is the output voltage during charging or the intelligent protection during overcharging, it is the most suitable for your lithium battery. How to choose a suitable lithium battery charger for electric vehicles? Today, the editor will summarize a few points for everyone!

How to choose a suitable lithium battery charger for electric vehicles?

Electric vehicles are composed of many components, and among all the components, the importance of a charger is self-evident. A lithium battery charger for electric vehicles is a charging device specifically designed for the battery of electric bicycles. The performance of the charger directly affects the service life of the lithium battery.

1、 First, let's determine the battery voltage of your electric vehicle

If the voltage of your electric vehicle battery is 48V, the output voltage of the corresponding lithium battery charger is generally around 59V; If it is a 60V battery, the corresponding charger output voltage is generally 73.5V. When choosing a charger, the input voltage is definitely 220 volts, but the output voltage of the charger must be matched according to your battery, and this must be accurately grasped.

2、 Determine the output current of the charger based on the battery capacity AH of the electric vehicle battery

If the battery is 12AH, a charger with an output current of 1.8A is generally chosen. If it is a 20AH battery, generally choose an electric vehicle lithium battery charger with an output current of 26 to 30AH. If it is a 30AH, 35AH, 60AH, or 100AH battery, the output current of the selected charger should be slightly larger than your battery capacity.

3、 Determine the appropriate charger interface shape for your electric vehicle, positive and negative poles

There are four common interfaces in the market, including T-shaped product header, three vertical product header, medium horizontal product header, and round header, which must be matched with your electric vehicle.

4、 Be sure to choose an intelligent lithium battery charger

Non intelligent chargers usually charge continuously with high current. After ten hours, the lithium battery starts to heat up. After twenty hours, the battery may become swollen and scrapped. The smart charger starts with high current charging, and then automatically changes to trickle charging after it is fully charged, just like we use fire to cook porridge. In order to make water boil as quickly as possible, we first use high fire, and then change to low fire to boil slowly. Smart chargers can effectively ensure that lithium batteries are in a safe state after being fully charged.

Precautions for using lithium battery chargers for electric vehicles

1. The charging voltage and current of a lithium battery charger should be consistent with that of an electric vehicle, and it is not possible to use a charger with 5 batteries to charge 4 batteries.

2. When charging, be careful to first plug in the charging port of the battery, and then plug in the power plug.

3. When charging, the charger should display a red light on. After being fully charged, the green light comes on. If the charging port is properly plugged in and the green light remains on, the reason for not charging should be investigated.

4. If not used for a long time, it should be fully charged. Turn off the main switch under the seat and place it indoors or in a cool and dry place.

5. It is strictly prohibited to disassemble and repair lithium battery chargers without authorization, as there is a risk of electric shock due to high voltage inside, especially when hands are wet.

6. Do not use charging near flammable and explosive gases that are prone to ignition.

7. When charging, the charger will emit heat and should be used in a well ventilated area as much as possible. It should not be placed under the electric vehicle seat for charging. It should not be carried with the vehicle to prevent damage to the charger due to long-term bumps.

8. If any abnormalities are found during the charging process of the charger, the power plug should be immediately unplugged and sent to the purchasing department to investigate the cause.

Correct charging and maintenance methods for lithium-ion batteries in electric vehicles

1. Charge according to standard time and procedure, even for the first three times.

2. When the lithium battery shows a low battery warning during the operation of an electric vehicle, it should be charged as soon as possible and in a timely manner.

3. The activation of lithium-ion battery electric vehicles does not require a special method, and lithium-ion batteries will naturally activate during electric vehicle operation.

4. When using a dedicated charger for charging, first insert the output plug of the charger into the battery charging socket, and then insert the charger plug into the mains socket. Observe the indicator light for charging judgment (generally, a red light indicates charging, and a green light indicates basic sufficient charge. The more discharge, the longer the charging time).

5. After the charger indicator light turns green, charge for about 1-2 hours to stop charging.

Can electric vehicle lead-acid batteries and lithium battery chargers be interchangeable?

Many people hold different opinions on whether electric vehicle chargers are universal. According to a survey, 70% of netizens believe that electric vehicle chargers are universal, while 30% of netizens believe that electric vehicle chargers cannot be universal. Each netizen has their own opinion, so can electric vehicle lead-acid battery chargers and lithium battery chargers be universal?

In fact, electric vehicle chargers are theoretically not interchangeable, which is the same as the principle of mobile phone chargers. It mainly depends on whether the voltage and current are consistent. Generally, chargers of the same brand are more likely to be interchangeable. However, when using them, it is still necessary to check whether the voltage and current match. Many users think that as long as they can plug in a charger that can light up, it can be interchangeable. In fact, this can easily damage the battery.

In order to ensure the charging safety of the lithium battery pack and ensure the service life of the battery pack, the lithium battery pack uses a matching lithium battery charger. If the charger is lost or damaged, please contact the corresponding dealer to purchase it. Do not use lead-acid chargers or other forms of chargers for charging.

Due to the fact that lead-acid battery chargers are generally set in a two-stage or three-stage charging mode, the voltage levels of lithium batteries and lead-acid batteries do not match. There are also many types of lithium batteries, and their performance and protection board parameters may vary. Therefore, lithium batteries do not have a universal battery charger like lead-acid batteries. Generally speaking, lithium batteries come with a dedicated charger when they leave the factory. To protect lithium batteries, a dedicated charger is required. To extend the lifespan of lithium batteries, it is necessary to regularly charge and discharge them. To develop the habit of charging an electric bike after using 80% of its battery, one should not wait until the battery is depleted before charging. In addition, lithium batteries should not be stored for long periods of time. When charging the electric vehicle battery, the door lock must be closed and the battery cannot be inverted. When charging, it should be fully charged at once and should not be charged multiple times.

The above are some tips that the editor has summarized for everyone on how to correctly choose a suitable lithium battery charger for electric vehicles, as well as some questions about whether the charger can be universal. Lithium batteries are now the preferred choice for electric vehicles. After their large-scale application in portable communication tools such as mobile phones, their green and environmentally friendly quality has been recognized. At the same time, compared to lead-acid batteries, lithium batteries are lighter, bulky, and perform better in terms of performance.

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