How to choose the suitable on board charger?
How to choose the suitable battery on board charger?
Note： the main function of the battery charger is to convert 220V or 110V AC power into the DC power required by the battery, and then charge the battery.
When choosing a battery charger, you need to pay attention to the following points:
1. Confirm the battery type
First, you need to determine the type of battery and determine the charger parameters according to the brand, type, and model of the battery used.
2. Select the appropriate charging voltage and charging current
According to the charging characteristics of the battery, select the appropriate charging voltage and charging current.
Charging voltage: Calculate the series voltage of the battery pack and determine the charger voltage. For example, if the battery pack is 5 pcs of 12V batteries and the charging voltage is 12V*5=60V, then a 60V charger is more appropriate.
Charging current: The number of ampere-hours of each battery, multiplied by 0.15-0.18, is the charging current (amps). If the battery is 100AH, the charging current range: 15-18A,
3. Choose the appropriate charging method
Choose the appropriate charging method according to the charging characteristics of the battery. Generally speaking, nickel metal hydride batteries and lithium-ion batteries are suitable for constant current charging, and lead-acid batteries are suitable for constant voltage charging.
4. Choose a charger with a reliable brand
Choose a charger from a reliable brand and avoid using inferior chargers. Inferior chargers may cause battery overcharging, overheating, liquid leakage, and other problems, and even cause safety accidents such as fires and explosions.
5. How to choose a charger that matches the battery?
Since low-frequency (mechanical) chargers cannot effectively control the charging current and charging voltage, they cannot be used to charge maintenance-free batteries or lithium batteries, otherwise, the batteries will be damaged. Coupled with its large size and heavy weight, it can only be used portable and is only suitable for liquid-filled batteries with low requirements. Therefore, the mainstream chargers in the cleaning industry, electric forklifts, and electric vehicles are intelligent variable frequency chargers.
.png)
When choosing a good intelligent variable frequency charger, you should consider the following factors:
1. Appearance
Small volume, smart chargers are switching power supply products. With the same output power, the smaller the size, the higher the power density, the higher the technical content, the higher the efficiency, the smaller the heat, the higher the reliability, and the stronger the manufacturer's manufacturing capabilities.
The power of cables, terminals, and chargers is generally 1-2KW, which consumes a lot of power. Cables and terminals must comply with safety standards, otherwise, safety accidents may occur.
2. Protection level
Portable electric vehicle chargers are generally used outdoors and are easily affected by dust, rain, fog, etc. Vehicle-mounted chargers also need to consider the effects of vibration and road water accumulation. The higher the protection level, the longer the service life of the charger.
Newtop's inverter charger adopts a fully sealed and glue-filled process and can adapt to any harsh environment.
.png)
（From https://newtopenergy.com/）
3. Protection function
During the charging process of the battery, various abnormal situations will occur, which will affect the charging effect. To ensure the normal operation of the charger and protect the battery, regular manufacturers will set up a series of charging protection measures. Irregular small factories, to save costs, make rough products and omit some protection functions, which brings hidden dangers to users.
(For protection functions, please refer to https://battery-on-board-charger.blogspot.com/2024/05/What%20is%20On%20board%20charger.html)
.jpg)
评论
发表评论