How to charge your smartphone by car & precautions you should know (disadvantages)
What are the precautions when charging a smartphone in a car?I will teach you how to use the charger you use at home
Have you ever experienced that your smartphone's battery runs out faster than usual when you're traveling on a leisure trip using your own car?
Actually, this is because the terminal is searching for radio waves of new base stations one after another due to the movement of the car, so the power consumption has increased.
In order to prevent this, it is better to turn off the power of the smartphone while driving, but rather than that, some people are thinking "I want to be able to charge the smartphone with my car!" There will be many.
In this article, we will introduce how to charge your smartphone in a car and points to note. If you are already using the car charging and "I am charging the car while I am on the move, but I feel that the charging is slow!", Please use it as a hint for the solution.
Precautions when charging a smartphone in a car
table of contents
The power supply for charging is basically from the cigar socket!
Power is basically supplied from a car to a smartphone using a cigar socket. However, smoking cessation has become the mainstream these days, so the number of cases where cigar sockets are treated as an option by car dealers has increased.
First, let's check if your car has a cigar socket
If your car does not have a cigar socket, have it installed at your car dealer or car supply store. The price is around 1000 yen (in most cases, wages are not included).
Check the amperage when using a USB car charger
The USB car charger is probably the easiest and most compact charging item for automobiles. You can charge the USB charging device by inserting it into the cigar socket.
The USB car charger is an item that can be easily inserted into a cigar socket to charge smartphones and tablets.
The point to note when purchasing is "output A (ampere)". Looking at the products, there are 1A and 2.1A outputs, and two USB terminals (1A and 2.1A) for a total of 3.1A.
In recent smartphones, the number of terminals with a standard of charging at 2.1A is increasing. Even if you connect this 2.1A charging smartphone to the 1A USB terminal, it will be charged weakly.
This may not be able to charge in the time you expected, or in some cases it may only be effective in delaying the charge depletion.
On the contrary, even if you charge from the 2.1A USB terminal with a smartphone that does not support 2.1A charging, it will only charge 1A or 1.5A corresponding to the terminal.
The A number of the terminal is printed on the attached cradle and AC adapter, so please check it.
It's a little hard to see, but the number of A written on the cradle of Xperia Z1. Let's charge with a device of 1.8A or more
If it is properly connected to the standard A USB terminal but charging is slow, or if you cannot do it at all, suspect the connected USB cable.
If it cannot be charged at all, it may be disconnected, but the USB cable does not support 2.1A supply, or the terminal D + / D (signal line for USB) is short-circuited (short-circuited) on some smartphones. In some cases, it cannot be charged without it. It is safe to use the genuine USB cable that came with your device.
Genuine terminal is recommended for the charging cable that connects the USB car charger and smartphone.
FM transmitter that allows you to listen to music on your smartphone as well as charge
If you use an automobile inverter, you can also use a household charger.
Inverters for automobiles make it possible to use the charger used at home outlets in automobiles. This article uses "REMEX Inverter 135W".
REMIX Inverter 135W
View products on AmazonAn automobile inverter is a device that converts DC12V (or 24V) that can be taken out from a cigar socket into household AC100V. Since a household power socket can be inserted into the inverter, it is a convenient accessory that can be used not only with smartphone chargers but also with a wide range of devices such as PCs and game consoles.
Inverter that connects to a cigar socket and converts it to AC100V for home use
It's a very almighty inverter, but it can strain your car's battery.
First of all, please note that there are 12V inverters for passenger cars and 24V products for large vehicles such as trucks. Even if a 24V inverter is attached to a 12V passenger car, it will not work.
In addition, if a large-capacity inverter is attached to a vehicle equipped with a compact, low-capacity battery or dynamo (generator) such as a light vehicle or an old passenger car, the supply amount from the automobile side will be exceeded (burden). The battery will run out.
If you want to use an inverter, you have to check the model of the car, the capacity of the battery, and the performance of the dynamo before making a selection.
One of the most common misuses of automotive inverters that can be used with household power sockets is octopus foot wiring.
In some cases, the power of the inverter may be exceeded by wiring the octopus legs. Do not use unreasonable octopus foot wiring as it may cause the car battery to run down or the inverter itself may generate heat or malfunction.
It is strictly forbidden to wire octopus legs in the car
In this way, there is a method of charging in a car using a USB car charger or a car inverter.
A common point to note when using a USB car charger or inverter is that when the engine is stopped or idling, it consumes more power than the car's power generation (dynamo's power generation), so it is stored in the battery. It consumes electricity.
Avoid long-term charging except when driving, and if possible, finish charging as soon as the smartphone battery is fully charged.
If you use it correctly, you can enjoy a long drive without worrying about battery consumption. Why don't you introduce it before the spring holiday season?