Battery Charging Best Practices

[harveye]

I have a Level 2 charger in my garage that I use to charge my GV60 to 80% when it is down to near 20%. I also have an EA DC fast charger 10 minutes from my home which affords me free charging for 3 years. Home charger is more convenient, fast charger is free, but what's the best routine for battery health? Should I charge to 100% occasionally even if not taking a road trip?

 

[Canyonero!]

For convenience, I would just charge at home.

But if you really want to take advantage of free charging (and why not?), I would do the same routine as home (i.e. keep it between 20-80).

Charging >80 would mean spending a lot more time at the DCFC.

 

[arampapaz]

DC Fast charging degrades the battery quicker. If it is a lease, or you do not plan to keep it long term you might as well take advantage of the free charging if it doesn't inconvenience you. I plug in at home every night and charge to 80%

 

[Looney100]

I have mine set to charge to 70% as that seems to be the most conservative guidance. The general consensus for maximizing longevity seems to be to level 2 charge and keep the battery between 20-70%.

I agree with the comment that, if this is just a short-term vehicle for you, might as well take advantage of free charging.

 

[Bobdhd]

I have a Level 2 charger in my garage that I use to charge my GV60 to 80% when it is down to near 20%. I also have an EA DC fast charger 10 minutes from my home which affords me free charging for 3 years. Home charger is more convenient, fast charger is free, but what's the best routine for battery health? Should I charge to 100% occasionally even if not taking a road trip?

This is what Genesis in Canada sent me as their official recommended position on charging.

 

[mike_1103]

This is what Genesis in Canada sent me as their official recommended position on charging.

Thanks for posting this information.

In summary:

• Leave the car plugged on a Level 2 charger when parked in hot temperatures;
• Avoid DC fast chargers;
• Keep SOC (State Of Charge) between 25 and 75%.

They also mention that eight years of standard charging will give us 10% more battery life compared to 8 years of using fast charging... I can live with that so I will not avoid DC fast chargers.

 

[fredf]

I will add one thing that has been mentioned elsewhere: it is recommended that occasionally to charge to 100% to even out all the battery cells....as long as you don't leave the car at 100%

 

[fredf]

Thanks for posting this information.

In summary:

• Leave the car plugged on a Level 2 charger when parked in hot temperatures;
• Avoid DC fast chargers;
• Keep SOC (State Of Charge) between 25 and 75%.

They also mention that eight years of standard charging will give us 10% more battery life compared to 8 years of using fast charging... I can live with that so I will not avoid DC fast chargers.

that is a good summary

 

[GenesisJohn]

DC Fast charging degrades the battery quicker. If it is a lease, or you do not plan to keep it long term you might as well take advantage of the free charging if it doesn't inconvenience you. I plug in at home every night and charge to 80%

Do you leave it plugged in all night even after charging is complete? I use my Level 2 to fill up and then unplug it but a friend said I should leave it plugged in all the time in case the vehicle needs power it will use the Level 2 instead of the battery. It never occurred to me to leave it plugged in once the charging stopped.
Thanks, John

 

[Bobdhd]

I will add one thing that has been mentioned elsewhere: it is recommended that occasionally to charge to 100% to even out all the battery cells....as long as you don't leave the car at 100%

Yeah, once again, we get slightly incomplete information. Definitely agree, the batteries need the equalization & probably the odd fast charge to shake things up.

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[Bobdhd]

Do you leave it plugged in all night even after charging is complete? I use my Level 2 to fill up and then unplug it but a friend said I should leave it plugged in all the time in case the vehicle needs power it will use the Level 2 instead of the battery. It never occurred to me to leave it plugged in once the charging stopped.
Thanks, John

I’m starting to get myself a little mixed up, too much research…
Something stands out in my mind that, if plugged in, the onboard temperature control will regulate the pack when necessary, as in winter. I can see I’m going to need a cheat sheet.

 

[smartino]

Do you leave it plugged in all night even after charging is complete? I use my Level 2 to fill up and then unplug it but a friend said I should leave it plugged in all the time in case the vehicle needs power it will use the Level 2 instead of the battery. It never occurred to me to leave it plugged in once the charging stopped.
Thanks, John

You know I do

 

[GenesisJohn]

You know I do

I do know that, that's why I was asking for another view!

 

[UKGV60]

Realistically it's all going to depend on how you use the car.

Mines a 4 year lease, so I'm not going to worry too much.

70-80% battery is not enough range for me to realistically get to work and then to a fast charger for the drive home, especially during winter.

I charge to 85-90% and more than likely 100% during the winter, but I'm not driving the car every day.

I charge once or twice a week dc fast as a top up charge and the rest at home.

 

[sinblue]

Very useful charging video from Genesis.

 

[CopperGV60]

DC Fast charging degrades the battery quicker. If it is a lease, or you do not plan to keep it long term you might as well take advantage of the free charging if it doesn't inconvenience you. I plug in at home every night and charge to 80%

This is true, but I definitely think YMMV.

Obviously battery chemistry and overall architecture is different from our Tesla Model 3, but about 40,000 miles of our car was DCFC (Tesla Supercharger) over the last 4 years (no Level 1/2 charging available in public parking where car is kept). Doing some readings of the pack's health resulted in a ~8.5% degradation.

I will say it's a lot lower (the degradation) than I thought it'd be given the fact that I would even routinely charge it to 100% despite Tesla's warnings against frequently doing so - but for our new GV60, we're going to try our best to "slow charge" it whenever we can, especially since we're finally able to get home charging made available soon.

 

[MovingOn]

How often is too often to charge to 100%? I drive to the lake on the weekends. We have a L2 home chargers in the city and at the lake. I charge to 100% before I leave and then before I return home. Is that too much? Less of this from now till Spring.

 

[duz00]

How often is too often to charge to 100%? I drive to the lake on the weekends. We have a L2 home chargers in the city and at the lake. I charge to 100% before I leave and then before I return home. Is that too much? Less of this from now till Spring.

I think it’s absolutely fine

 

[Looney100]

If you need the range provided by a full battery, the discussion is moot.
From what I’ve come across, it seems the concern is more about time spent at high/low SOC, so if you’re driving it soon after the charge, I don‘t think you have too much to worry about.

 

[duz00]

How often is too often to charge to 100%? I drive to the lake on the weekends. We have a L2 home chargers in the city and at the lake. I charge to 100% before I leave and then before I return home. Is that too much? Less of this from now till Spring.

according to the manual at least 2-3 times a month