Some friends often ask me: Our car chargers, driving recorders and car refrigerators use car battery power. Will this affect the battery over time? Will it be like our cell phones, if we continue to remove the plug it will cause the energy stored in the electronic board to decrease.
Actually, you don't need to worry about this problem. Some normal on-board electrical devices in our cars will not damage the car battery at all. But please note that the author is talking about normal automobile supplies, which are limited to small currents such as: mobile phone charging, driving records, small USB fans, etc.
Many cyclists who travel outdoors like to turn the USB interface into an interface for cooking and boiling water. This poses big problems.
PS: We do notLet's just talk about the normal equipment of the vehicle here.
The USB interface we use now is connected to the car door switch, so when we get out of the car and open the door, we will find that the navigation and driving recorder will be extinguished. This is because when we open the car door and the power is turned off, the power to the cigarette lighter interface will naturally be disconnected. So when we get out of the car, remove the key and close the door, the power supply to the whole car has actually been cut off, so the battery will no longer discharge, and naturally there will be no Shame.
The operating current of our normal vehicle equipment will not exceed 300 mA. Such a low current will not cause any damage to the battery. After decades of improvement, automotive batteries have adapted to high current and short-term impacts.When our car starts, the generator instantly discharges up to 100 amps, and the batteries used in our cars are starting batteries. The starter battery can withstand the impact of large currents.
When our car is driving, the voltage generated by the generator is higher than the battery voltage, and the voltage is sufficient at that time, the power used by the vehicle equipment is powered by the engine. , not the battery.
When our electrical load increases and the generator current can no longer be fully satisfied, the battery will be put to work, and of course it will only serve as an auxiliary function.
If we use high-power equipment for a long time, or the generator stops working and we still listen to music or watch movies in the car, these electronic devices are powered by the battery. If the batteryie is not fully charged for a long time, or loses power for a long time under working conditions, this will indeed affect the battery life, so we need to be especially careful when choosing devices automotive electrics. Of course, there are no problems with our driving recorders, navigation systems and other low-power devices.
If we really like a certain high-power audio system or a certain car TV, we must take a look at the power of these electrical equipment. Generally speaking, the power provided by the generator at idle is only 1/3 of the rated power, and it cannot be calculated exactly as 1/3 because there are other electrical appliances in our car.
There are many 24-hour automotive equipment on the market today. Unless they are deliveredres with their own battery, they are useless. Do not buy based on quantity. Because the principle of this device is very simple, it does not draw energy from the cigarette lighter, because the cigarette lighter will lose energy.
The maintenance technician will draw power directly from the battery so the equipment does not lose power. This is actually bad for battery life.
Some driving recorder manufacturers have therefore made improvements, allowing the driving recorder to have its own battery and use solar energy for charging, which is a good thing.
If you have installed 24-hour car equipment and do not have your own battery, the best way is to drive the car more.
If you do not drive for a long time, the battery will indeed lose power, resulting in a shortened lifespan. In a way gIn general, the power consumption of this type of vehicle power equipment operating 24 hours a day is not large and it is carefully calculated. The capacity of our car battery is generally 50ah, which can use the on-board electrical equipment for about ten days, so we need to drive the car regularly to charge the battery
Let tell me a little secret: Actually, many 4S stores or repair shops offer free battery charging service, so it is also good to charge the car regularly and do regular battery maintenance.
This article is from the author of Autohome Chejiahao and does not represent the views and positions of Autohome.
Are solar panels or gasoline generators used on RVs?
Easy to use.
1. Energy saving and environmental protectionement: The solar driving recorder uses solar energy as energy and does not require vehicle power supply. It not only saves energy but also causes no pollution to the environment.
2. Long service life: The solar panel of the solar driving recorder can protect the driving recorder and extend its service life.
There are several ways to generate electricity in a motorhome, each with advantages and disadvantages.
The energy conversion rate of solar panels is relatively low, and the power generated per square meter does not exceed 200W. It occupies a large area and generates low power. The generator is powerful enough to power most devices. However, the generator makes noise when running and requires additional fuel, which is inconvenient to use. In certainIn some areas it is difficult to obtain gasoline in bulk. Carrying cans of gasoline is also inconvenient.
Most motorhomes currently use electricity from dedicated battery packs.
There are lead acid batteries and lithium batteries. Battery + high-power inverter can provide power to the camper. The battery capacity and the power of the inverter determine the power of the motorhome's electrical devices. High-power devices must be equipped with large-capacity batteries and high-power inverters. Some RVs also use 48V batteries, which can store more energy and produce more power. They can turn on the air conditioner when parked.
Most motorhomes still use lead acid batteries.
Although the energy density is low, it has a stability factorand high security. Regardless of the capacity or type of battery used, the issue of battery charging must be considered.
Although solar cells can produce electricity, solar energy production depends solely on the weather.
In addition to being affected by weather conditions, solar panel conversion efficiency is low. If you want to produce enough power, you need a large enough roof area to accommodate more battery panels. As with the two battery panels in the picture above, the effective power is only around 200W when there is sufficient light. Such small power cannot directly power high-power devices. This can only prevent the battery from discharging excessively and the charging speed is also very slow. If a 12 V 200 Ah battery is used and theSolar panel power is 200W, it will take 12 hours to fully charge the battery, and charge losses should also be taken into account. And solar panels only have high power for a few hours a day. The output power will drop significantly at other times, so it is only suitable for recharging the battery. Use it when you are not in a hurry to avoid excessive battery drain.
The generator has a large output power and can also charge the battery while powering electrical appliances.
Use a generator to generate electricity, just like you use mains electricity at home. For example, when using high-power electrical appliances, the generator can be directly removed. Using an induction cooker to cook vegetables, a rice cooker, etc., or even eating hot pot, can all be powered by a generator. Simply turn off the generator after use. Normally, low power electrical appliances can be powered by battery + inverter. Generators are not suitable for all motorhomes. Smaller campers use a lot of space and it is difficult to find a suitable space for the generator.
Solar batteries can only provide auxiliary charging, and their power is low and insufficient to do big things. A motorhome cannot live without its auxiliary battery. If you bring a fuel generator at this time, it will be a burden.
Therefore, the most ideal solution is to use the auxiliary battery + inverter to provide power, and the power output is achieved by modifying the original generator of the vehicle. For example, replace the car's original generator with a high-power generator specific to the RV.This type of generator is powerful enough, with an output current of over 200A, and can produce over 40A even at idle. Charging is faster. When the engine is idling, the generator output power is: 40A×14V=560wh. In this case, there is no need to carry an additional generator. In the extreme case of a discharged battery, the vehicle may idle to generate electricity. Combined with the battery + inverter, it can fully meet the electrical needs of the motorhome.