Is it Possible to Install A DC Charger at Home?

There has always been a notion that DC Fast Charging is only suitable for commercial and public scenarios, and that it is impossible to use DC Fast Charging in home scenarios.for home charging AC charging is your only choice, Today I want to tell you that this notion is wrong or at least outdated

Firstly I want to introduce you the difference between AC Charging and DC Charing, and the most commonly used charing Levels.

AC charging and DC charging are two types of electric vehicle (EV) charging that main difference is in where the conversion from AC power (electric from the grid) to DC power (for the battery) happens. With AC charging, the conversion happens inside the EV using an onboard charger. the AC Chargers (Level 1 and Level 2 chargers) are more like an electricity supply equipment for the on-board charger. With DC charging, the conversion happens inside the charging station, The DC charging station feed power directly to the battery.

AC Charging for Electric Vehicles. there are two levels, know as level 1 charging and level 2 charging.

- Level 1 Charging:

Level 1 charging uses a common 120-volt household outlet. Every electric vehicle or plug-in hybrid can be charged on Level 1 by plugging the charging equipment into a regular wall outlet. Level 1 is the slowest way to charge an EV. It adds between 3 and 5 miles of range per hour1. It can charge 200 kilometers (124 miles) in 20 hours2.

Typically they’re limited to 10 or 12 amperes of current because there’s an assumption they’ll be used on a 15- or 20-amp circuit along with other electric outlets. this type of charger is not commonly used nowadays because of it's poor charging speed.

-Level 2 Charing:

Level 2 charging is the most commonly used means of charging an EV at home. It’s the most useful type of charging and the least meaningful designation. The only thing Level 2 means is 240 volts. Unfortunately, voltage is just one factor behind the power that charges a battery; current is the second factor, and the amount of current supported by Level 2 extends from 12 to 80 amps. So charging at this “one” level called Level 2 for one hour could mean you’ve added 5.5 miles of range or 60 miles of range. It all depends on the vehicle (the on-board charger, for most electric cars the on-board charger is limited to 7KW or less)and the charging unit, which have their own current ratings.

The Level 2 charger can have a rating of 12, 16, 20, 24, 32, 40, 48 or 64 amps — and some can be set to throttle down to lower current levels to accommodate being fed by less robust circuits.and it's also limited by the on-board charger of the electric cars. Level 2 charging is a compromise that users make with reality.

DC Charging for Electric Vehicles. the level 3 DC Fast Charging.

Level 3 charging is the fastest type of charging available and can recharge an EV at a rate of 3 to 20 miles of range per minute. Unlike Level 1 and Level 2 charging that uses alternating current (AC), Level 3 charging uses direct current(DC) directly charging the batteries. The voltage is also much higher than Level 1 & 2 charging, it requires of 3phase high-voltage power supply such as 3phase 380V/480V. for DC Fast Charging there are 5 Commonly used charging standards, known as CCS1 for North America and North Korea； CCS2 for European countries； CHAdeMO for Japan； GBT for China and Tesla Supercharging.

We can see that DC charging is fast can saving people a lot of time, but why people don't install a DC charger at home? Because following reasons.

1. the DC charger is very expensive is far more expensive than AC Chargers.

2. Most Homes or residential buildings do have the 3phase high-power supply.

3. People think that DC Fast Charging do harm to their batteries life span.

4. DC Charging have 5 different charging standards, a charging station can't meet all the needs for different markets.

is there any solution for these concerns? the answer is yes.

1. Our 21KW/31KW home dc fast charger with GBT DC connector is at a very affordable price similar as a AC charger, want to know the price and more details please contact our sales team

2. This GBT DC charging station requires a 3phase power supply, the input voltage is 342V-418V AC. input current is 60A max. so it means this charger is not for everyone. but only for the ones who can have the access to 3Phase power supply. but nowadays many countries they can have 3phase power supply for their residents.

3. The output voltage of our constant power dc home charger is 200-1000VDC the output voltage is adaptive accordingly. the output current of 21KW charger is 0-67A the output current for our 31KW is 0-100A. the charging time for a Volkswagen ID6 CROZZ 85KWH battery pack is about 2 hours from 20% to 80%. the degree of battery attenuation is almost the same as a AC charger. so you don't need to worry about this charger will effect your battery life span.

4. This 21KW/31KW DC Charging Station for home is with a GBT 9 pins charging connector, is only compatible with Chinese made electric cars (BEV and HPEV) such as the Volkswagen ID4 CROZZ, ID4X; VW ID6 CROZZ, ID6X; Zeeker 001, BYD all series, Nio ET7, ET5, MG; XIAOPENG.... all the Chinese Electric cars. in the future there will be home DC chargers with CCS Chademo Connectors.

So if you are driving a Chinese electric cars with a GBT 9 pin DC charging inlet, and you can access to 3phase power supply, this 21KW/31KW Constant Power DC Charger for home is your best choice. forget about the notion that DC charging is only available at public charging stations.  you can also install one at your home. to experience DC Fast charging at home.

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