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[Sub-battery] Convenient...

[Sub-battery] Convenient even when staying in the car!11 Recommended Popular ｜ Explanation of how to choose and charge ｜ Latest information on 2020

A sub-battery that allows you to easily use electric appliances even when camping or staying in the car. This article introduces how to choose a sub-battery and a total of 9 recommended products, 3 for each type. It also explains in detail how to use and charge, so please use it to select a sub-battery.

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What is the "sub-battery" used in van-dwelling and camper vans?

A sub-battery in a car is a power source that is used for purposes other than running the engine and electrical components in the vehicle. In this case, the battery originally installed in the car is called the "main battery", so the term "sub-battery" is used to mean a battery for other purposes.

If you connect an electric appliance to the main battery installed in the car when camping or staying in the car, the engine may not start. Therefore, it is necessary to prepare a sub-battery for using electrical appliances. If you have a sub-battery, you can use electric appliances even if the engine is stopped.

The main battery is called the "starter battery" because it is responsible for starting the engine. The starter battery supplies a large amount of power instantaneously when the engine is started.

On the other hand, the type often used for sub-batteries is the "deep cycle battery". Deep cycle batteries are suitable for powering electrical appliances because they have the ability to supply a small amount of power for a long time and can be discharged until they are empty.

Battery type and how to choose a sub-battery

Lead deep cycle batteries are cheap to obtain, but they are large and heavy, and they store less electricity than their size. Also, be aware that some hydrogen gas is generated. In recent years, the evolution and spread of lithium-ion batteries has progressed, and the number of lead deep cycle batteries, which are heavy and have a small number of charge / discharge cycles, is on the decline.

Lithium-ion batteries are characterized by their light weight, successful miniaturization, high storage capacity, and long life. It is widely used in laptop computers and batteries for electric vehicles. It can be said to be a universal battery because it has excellent performance in both supplying a large amount of power instantaneously and supplying a small amount of power for a long time.

Since the portable battery is made using a lithium battery, it is compact and can be charged with a large capacity, and it can be used even in an emergency. Anyone can easily use the portable battery because it can be charged by simply plugging the included charger into a household outlet. There is also a type with a safety device, so you can use it with confidence even in the event of a disaster.

How to use the sub-battery | Inverter is required when using electrical appliances

When using household appliances with a sub-battery, please note that an inverter is required to output 100V. An inverter is a device that converts electricity from direct current to alternating current. Many sub-batteries with built-in inverters are also on sale. There are three types of inverters: sine wave, pseudo sine wave, and square wave. The waveform transmitted to the home is a sine wave, but the price of a pseudo sine wave / square wave inverter tends to be cheaper.

How to charge the sub-battery | Can I charge the battery while driving?

When using the sub-battery, you should use the sub-battery charger to protect the car's main battery. There are three methods for the sub-battery charger: running charging, charging with a solar panel, and external charging. External charging is the most recommended method. Use the battery charger to connect to a household outlet and charge the sub-battery. It's easy and efficient, and it's popular because it can be charged with just a charger.

【サブバッテリー】車中泊でも便利！おすすめ人気11選｜選び方や充電方法も解説｜2020年最新情報

Driving charging is a system that literally enables charging while driving. There are four types of control methods: relay type, isolator type, manual type, and automatic control type, and the control method differs depending on the manufacturer and vehicle type. However, please note that the sub-battery cannot be fully charged by running charging.

It is a method to attach a solar panel to the top of the camper and convert sunlight into electricity to charge it. The electricity generated by the solar panel cannot be used as it is, so it must be converted by an inverter. This method requires a solar panel and a charging controller with good power generation efficiency.

This is a method of charging by connecting to a household outlet using a battery charger. It is safe to charge the battery at home before departure and then charge it in a place with a power source after going out. According to the reviews of sub-battery users, external charging is the most efficient and stable method.

Can you make your own sub-battery with DIY?

You can also make your own sub-battery by reusing the waste battery. When you want to save the cost of the sub-battery, sub-battery charger, and inverter, you can DIY the sub-battery by charging the waste battery from the cigar socket. It will not be fully charged like a commercial product, but if you have a waste battery, why not reuse it?