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EV Chargers Explained: Learn from the Experts at Pure Power

EV chargers currently come in three different models. Level one, Level two, and Level three. Level one; This charge level is the simplest level of EV charging and consists of plugging the EV into a standard 120-volt AC receptacle using a unique electrical cord with the appropriate plugs in at each end. The built-in battery charger in the EV dad charges the battery.

 

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EV chargers currently come in three different models. Level one, Level two, and Level three. Level one; This charge level is the simplest level of EV charging and consists of plugging the EV into a standard 120-volt AC receptacle using a unique electrical cord with the appropriate plugs in at each end. The built-in battery charger in the EV dad charges the battery.

This type of charging is generally limited by the amount of power that can be supplied by the receptacle usually 12 to 16 amps or less. 1.44 to 1.92 kilowatts, which, based on a TV with a three miles per hour, two-kilowatt rating, will add up to 5.8 miles for each hour of charging. If we charge for 10 hours overnight, it would only add up to 58 miles to the battery level.

One charging is useful for only a limited range EVs when daily miles driven are low or when several days of dwell time are available between EV usage. Level one Chargers are inexpensive, readily available and can be carried with the level two chargers. Allow the EV to be connected to a 240 volt receptacle like that used for an electric range or close driver level.

Two chargers are currently available up to around 20 kilowatts and continuing our example would add 60 miles for each hour of charging at 20 kilowatts. Many level two chargers are in the seven kilowatt to ten kilowatt range, enough to fully recharge most EVs overnight. A long range car or delivery van might have the battery capacity of 100 kilowatt hours and could be recharged over a little more than 10 hours by a level 210 kilowatt charger, taking system losses into account.

Level two chargers are readily available and moderately priced. Higher capacity Level two chargers are fixed in place, but lower capacity portable ones are also available. Finding a 240-volt receptacle to plug into can be much more challenging than finding a level one 120-volt receptacle. Level three or DC. AFC DC AFC Charger uses DC to charge the battery without needing to go through the onboard AC battery charger.

This charging level allows for much higher-capacity battery charging systems. DC AFC Chargers, due to the cost and need for 480 volt electrical service, are usually limited to commercial use, either in commercial fast charging stations or fleet operations. 100 KW DC AFC can recharge an EV with a 100 kilowatt-hour battery in about an hour. At this rate of three miles per kilowatt hour, an EV will gain 300 miles for each hour of charging.

DC AFC Chargers are significantly more expensive than any level one or level two charger and require 480-volt three-phase power. This limits them mostly to commercial EV charger installations. Utilities. Most utilities have an EV charging program where they either provide a rebate or some type of incentive to offset the price of your EV charging costs. So take a look at your local utility, see if they provide any rebates, and see if you qualify.