Electric vehicle lead-acid battery modified to lithium ion batteries, what technical points and precautions?

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Pembekal Stesen Janakuasa Mudah Alih

The battery on the battery car can be understood as a movable dischargeable power supply. The power supply is ultimately used for other loads such as motor and bulb. The power supply is at election of voltages, current and capacity, as long as the voltage is relatively close, will not be exceeded The rated voltage loaded on the car can change the lead-acid battery to a lithium-ion battery, and the larger the capacity, the more far can run the mileage.

1, when modified, consider the volume spatial problem, under the same capacity, the volume of the lithium-ion battery has only half of the lead-acid battery, so it must be installed, but pay attention to some shapes and packaging problems, after all, the space on the car is not necessarily Just one direction with the battery, you have to consider fixing reliability and prevent vibration falling. Moreover, in the case of economic conditions, of course, it is necessary to modify the lithium ion battery capacity, the better, so take advantage of the upper space, choose a reasonable profile battery to lay out. If the same capacity is replaced, because the remaining space is mostly, it is necessary to find something to fill the excess space when it is replaced.

2 Positive, the negative strip is connected back, preventing the positive negative, or unintentionally, the positive and negative battery is negatively touched, causing safety issues. 3, when buying a lithium-ion battery, it is best to make the merchant with a consistent or similar plug terminal, if the plug is different, some may have to replenish the thread or welding, even the translation line, must pay attention to the current size Optional specifications, it is best to put a multimeter DC, and the voltage is re-measured when the wiring is to prevent it. Remember, the positive and negative pole must be placed separately, do not perform the operation of the negative iron.

4, if you change the battery, it is also increased the motor and controller. If you want to consider whether the main circuit route should be bold, you can check the electrician manual, see how many square wires can pass how much amps, if the original car The line is fine, which will also leave safety hazards, and the efficiency and power effect will be discounted. 5, the lead-acid battery changes the lithium-ion battery, the charger must change the lithium-ion battery, the lead-acid battery is blocked, the general charger is high, and there are many pulse charge function, such a lithium ion battery It may be charged during charging, because there is a protective board protection, it will cause the charger output voltage to be not normal, and the backward monomer may be unconventional and cause damage.

If you happen to the protective board, so that high pressure charging is easy to cause explosion. 6, there is conditional, you can consider changing the undervoltage and overvoltage protection range of the controller. The lead-acid battery monomer is 2 volts, 6 composition 12 volts, and the discharge limit is generally controlled above 10.

8 وولٹ۔ The ternary lithium-ion battery monomer nominal voltage is 3.7 volts, 3 series actually only 11.

1 volts, but the lower limit of discharge can be 9 volts, if it is four batteries, the lower limit of the discharge is 12 volts, if the lead is continued The threshold for the acid battery will cause part of the amount of power to release, reducing the advantages of lithium ion batteries.