There are also some chargers that need to be connected to the main power all throughout the charging process while some are rechargeable and a main power supply is not needed to make the charger work. It is better to acquire charger that do bit require a connection to main power supply, because you can use this kind if charger anywhere you are. Even if you are on the road, you can still charge your car using this charger without any hassle.
You may also encounter charger that are powered by solar, but this kind of charger may take time when it comes to full charging. This is a very cheap charger, but you need to consider the efficiency of the charger right before you decide to buy a particular charger that you find on the web. Chargers are very important, so it important not to deal with unknown brands, if you want something that is worthy of your money. Chargers can save your life. It is important for you to spend a little if it will cause your safety and your life during emergency cases. Go for trusted brand in the market for your battery charger.