Nice experiment. For comparison, they usually quote a 1% daily drain for Tesla. When I went away for 21 days, my Tesla's battery reduced 15% (or 0.71% daily drain). So BYD appears impressive in maintaining its charge. Note: I wouldn't use the term "degrade" here, since that refers to a different battery condition 😊
Interesting experiment - I went to the UK for about 6 weeks at the end of last year (early Nov to mid Dec). Followed the BYD recommendations by charging to 100%, running it down to about 45% and it too dropped just 1 percent. The BYD battery tech is impressive.
Hi, thanks for that test as I have left my ATTO3 in a garage for 5 weeks whilst I am on holidays in Canada, left it about 80% so will look see what has happened to the charge level over that period of storage. Cheers Brett
Let me know how much you lose! I'm hearing from a few people they only lose 1 or 2% over that time frame. Next time I leave it though, I think I'll leave it at about 60%!
Yes, it's my experiment. I wouldn't recommend anyone do this without first understanding any risk to their battery or car. It's unlikely I would do this again though as it's pretty unnecessary!
@@joelmaroldLiFePo4 just more stable because not used Cobalt and nickel and 40-60% of SOC came directly from BYD in owner manual, it still have lithium that will grow dendrites when fully charged battery leaved for long period
Interesting experiment, and I was surprised to see that the battery held power so well over that time. The comparison to the phone is a bit unfair, however - modern phones, when switched off are still partly ‘awake’ and are consuming electricity to run the clock and monitoring for input that tells the phone to switch on. If you take the battery out of a modern mobile at full charge and store it for 5 weeks, you’ll find the self discharge of the battery itself is very low indeed. The fact that USB power banks can be sold as charged and ready to use bears testament to how well these small Li-ion cells hold charge. The Atto will also surely have some battery drain whilst switched off too, but the power consumption as a percentage of total battery capacity is minuscule when compared to the standby power consumption of a mobile phone when it’s ‘off’.
Good points. Thanks for sharing. It's pretty amazing how battery technology has improved in the last 10 years, and the leap from 30 years ago is incredible
@@bydatto39461 It is amazing how much rechargable battery technology has improved, in terms of density of energy storage, useful lifespan, self discharge, lack of memory effect and the elimination of toxic cadmium and a reduction in the use of lead.
You lost 1% because smart 12v charge that atto 3 uses to keep 12v battery charged when car not in use, true degradation you will see after you will do calibration charge from 9 to 100%, when battery not used for over week it should be leave at 40-60% to keep battery from degradation.
I don’t care what type battery especially turnery ones (Other than this test )I would never leave my Tesla at 100% soc for more than an hour Sweet spot is around 50% and plugged it. Max 55% Just by doing this the battery can last up to 23 years !
The thing is there are many different types of battery chemistry, including some new types being developed at the moment. LFP batteries, such as in the Atto 3, generally won't suffer if you leave them at 100%, that's my understanding, although the manufacturer recommends you don't leave it at this. I'm not really worried That said, this is my experiment, I wouldn't recommend anyone do anything unless they understand any risk there might be to their battery or car. It's unlikely I would do this again though as it's pretty unnecessary!
@@joelmarold I fully understand but my honest question I sincerely don’t know ) Yes it’s designed to be charged to 100% that I already know But is it also designed to sit at that SOC for mounths on end ?
Nice experiment. For comparison, they usually quote a 1% daily drain for Tesla. When I went away for 21 days, my Tesla's battery reduced 15% (or 0.71% daily drain). So BYD appears impressive in maintaining its charge.
Note: I wouldn't use the term "degrade" here, since that refers to a different battery condition 😊
Thanks for the insights, very interesting, and yes you are correct, "degrade" in hindsight probably wasn't the best term to use!😎
Interesting experiment - I went to the UK for about 6 weeks at the end of last year (early Nov to mid Dec). Followed the BYD recommendations by charging to 100%, running it down to about 45% and it too dropped just 1 percent. The BYD battery tech is impressive.
Agreed!
I really love a lot of innovation from BYD
Hi, thanks for that test as I have left my ATTO3 in a garage for 5 weeks whilst I am on holidays in Canada, left it about 80% so will look see what has happened to the charge level over that period of storage. Cheers Brett
Let me know how much you lose! I'm hearing from a few people they only lose 1 or 2% over that time frame.
Next time I leave it though, I think I'll leave it at about 60%!
Good to know, thank you!
You're welcome!
You're damaging the battery by doing so!
Manual recommends 40 to 60 % SoC if it's not used for more than a week or so
Yes, it's my experiment. I wouldn't recommend anyone do this without first understanding any risk to their battery or car. It's unlikely I would do this again though as it's pretty unnecessary!
thats for nmc chemistry :) this is lfp blade
@@joelmaroldLiFePo4 just more stable because not used Cobalt and nickel and 40-60% of SOC came directly from BYD in owner manual, it still have lithium that will grow dendrites when fully charged battery leaved for long period
Great video as I m having a holiday. Will fully charge my atto 3 before leaving
BYD recommend leaving SOC at 40-60% if not driving for over a week.
@@hotban Thanks, it's not neccessary though to leave it at 100%, this was just my experiment. Just be aware of the risk before you decide to it!
Interesting experiment, and I was surprised to see that the battery held power so well over that time.
The comparison to the phone is a bit unfair, however - modern phones, when switched off are still partly ‘awake’ and are consuming electricity to run the clock and monitoring for input that tells the phone to switch on.
If you take the battery out of a modern mobile at full charge and store it for 5 weeks, you’ll find the self discharge of the battery itself is very low indeed.
The fact that USB power banks can be sold as charged and ready to use bears testament to how well these small Li-ion cells hold charge.
The Atto will also surely have some battery drain whilst switched off too, but the power consumption as a percentage of total battery capacity is minuscule when compared to the standby power consumption of a mobile phone when it’s ‘off’.
Good points. Thanks for sharing. It's pretty amazing how battery technology has improved in the last 10 years, and the leap from 30 years ago is incredible
@@bydatto39461 It is amazing how much rechargable battery technology has improved, in terms of density of energy storage, useful lifespan, self discharge, lack of memory effect and the elimination of toxic cadmium and a reduction in the use of lead.
Same happened to me in UAE
I understand
You lost 1% because smart 12v charge that atto 3 uses to keep 12v battery charged when car not in use, true degradation you will see after you will do calibration charge from 9 to 100%, when battery not used for over week it should be leave at 40-60% to keep battery from degradation.
OTA flag was on the main screen.
Did you not do the past update, or is this a new one?
That's the old update, have not updated yet. A little birdie told me there's a new update coming soon though
I don’t care what type battery especially turnery ones
(Other than this test )I would never leave my Tesla at 100% soc for more than an hour
Sweet spot is around 50% and plugged it. Max 55%
Just by doing this the battery can last up to 23 years !
The thing is there are many different types of battery chemistry, including some new types being developed at the moment. LFP batteries, such as in the Atto 3, generally won't suffer if you leave them at 100%, that's my understanding, although the manufacturer recommends you don't leave it at this. I'm not really worried
That said, this is my experiment, I wouldn't recommend anyone do anything unless they understand any risk there might be to their battery or car. It's unlikely I would do this again though as it's pretty unnecessary!
thats guidance for an nmc pack not an lfp pack or in this case an lfp blade pack
@@joelmarold I fully understand but my honest question I sincerely don’t know )
Yes it’s designed to be charged to 100% that I already know
But is it also designed to sit at that SOC for mounths on end ?