It is important to know the difference between a battery charger and a portable jump starter. The vehicle battery charger is usually plugged into a household power outlet (110-120 VAC) to charge the battery. They usually take hours to two days to fully charge.

Although the alternator in the vehicle is responsible for charging the battery, sometimes an additional battery charger is required. This is important if you are using the car occasionally or only at certain times of the year. Although it's useless when there's a roadside failure, when you go home, they can charge your battery, saving you money and road inconvenience.

Unlike chargers, portable starters (aka battery boosters, emergency boosters, battery jumpers and jump boxes) can be used anywhere. They do not require a power outlet. They also don't charge your battery, but provide the necessary amperage to start the engine and start the vehicle. After the engine is started, the alternator will charge the battery and power the electrical system.

linsheng recommends that you use a portable jump starter so that you can safely get it to your destination, but you can fully charge it at home with a plug-in charger. If you are only planning to buy one, purchase a portable device. However, home plug-in units can be useful and cost effective

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