What is the attention of electric car lead acid to lithium ion batteries?

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Pārnēsājamas spēkstacijas piegādātājs

Lead-acid battery changing ion batteries Important to the following points, the space problem of the battery is feasible, but the size of the battery is to consider whether the size of the battery is still in the original position, No protracted or extruded, because the extrusion and moisture will cause damage to the battery inside the battery. Second, it is not possible to use the charger lead-acid battery and the lithium ion battery capacity voltage in accordance with the battery type, and the charger cannot be used, because the two batteries should be in different stages of charging voltage. When the lead-acid battery is charged, the charger voltage is high.

The lithium-ion battery technology requires high, so when charging, the charger uses constant current constitutive compressor, lead-acid rechargeable electricity can cause overshoot, explosive danger. Third, the socket is changed because the lead-acid battery and the lithium-ion battery interface different, the battery will be used to match the socket, do not can insert it, it is easy to cause a lithium ion battery short circuit, thereby happening. Fourth, the battery cannot be charged with the original charging port due to the different charging principles, if charging the original charging port on the electric vehicle will cause the circuit damage to a lithium-ion battery short circuit.

V. Turbine voltage discharge cutoff voltage = number of blocks * battery discharge cutout voltage. For example, a 48V lead-acid battery is 4 * 10.

5 = 42 as an example of a 48V lead-acid battery, corresponding 14 string triplet, (48 / 3.6 = 13.333), or 15 serial iron (48 / 3.

2 = 15) six, according to the motor Power and controller selection protector such as a car is 500 watt electric machine, 60V battery. Select protection board current Formula: (500/60) * (2.2 ~ 2.

5). Some cars have the old motor, the motor is faded, the current will add, and the protective plate current can be large. 7.

Replace the fuse lithium ion battery power, large current, sudden startup, the original car fuse may be burned. 8. Pay attention to the capacity, the stroke replace the lithium-ion battery with the same voltage.

The same voltage and capacity battery, the lithium ion battery has the same amount of lead-acid, and the lithium ion battery is more than 20% mileage than the lead-acid battery, except that the size is small, and the other is the original It is a large current characteristic of the lead-acid battery, only 50% of the capacity at 1C discharge, and the lithium-ion battery is high at 1c or even 2C discharge. Nine, do a good job in waterproof (battery internal water sensation label, in the water discoloration) Waterproof level: IP **, two numbers, the first number is the solid-state protection level (range is 0-6); the second number is Liquid protection level (range is 0-8). The larger the number, the stronger it is.

The battery is typically used with a sealant or an epol, allowing the battery to be waterproof function. Do a good job in waterproof protection, lithium-ion batteries, you need to do a hermetic detection or IP67 waterproof test. Generally use high-precision airtight tester to detect the airtightness of lithium-ion batteries.

Ten, do a good job of insulation, if the plug is installed, welding the soldering of the soldering is hot short circuit in the connection. 11. Is it replacing the controller? If the phosphate ion battery does not replace the controller; if it is a three-dimensional lithium ion battery, it is also not replaced by the controller, but the undervoltage protection point of the three-dimensional ion battery is lower than the lead-acid battery, lead-acid battery controller.

At this time, the lithium-ion battery has not been under the undervoltage protection point at this time, so that the electricity of the three-dimensional lithium-ion battery cannot be used, resulting in a limited life. Twelve, is this replacement dashboard? The lead-acid battery instrument dial is designed according to the voltage and discharge curve of the lead-acid battery. Since the lithium-ion battery charge and discharge curve is different from the lead-acid battery, the voltage display value is not allowed after replacing the battery.

For example, the lithium iron phosphate ion battery will have a phenomenon of voltage falling after the overflow power supply. This is determined by the battery characteristics. It actually is full, does not affect the use, can not replace the dashboard.

However, pay attention to the lithium-ion battery electricity from 100% to 80%, when it is reduced from 40% to 10%, the instrument indicates the decline, and there is no change in other segments. Therefore, when the dashboard display is below 40%, the actual power of the lithium-ion battery may only be around 10%, and it should be charged as soon as possible. Thirteen, pay attention to the battery type, such as a split lithium-ion battery, must pay attention to the charging port cannot be used to discharge, if the discharge is inserted to damage the battery on the charging port, which may cause the battery to short the battery, thus haphade.

14. Unable to charge the street fast charging station to charge the lithium-ion battery, only suitable for lead-acid batteries. Since the charging current of the rapid charging station is large, it will lead to the risk of high battery.

To use a dedicated lithium battery charger charging. Thirteen, change the charging method.