What percentage?

DanielLoreti

Well-known member
Sep 20, 2018
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Is it ok to charge at around 40% or should I let it get lower? I've had my N9 for a week now.
 
The usual recommendations still apply. 40-80% is the ideal to help prolong overall life. Going outside that range is going to cause premature wear and loss of life.
 
The usual recommendations still apply. 40-80% is the ideal to help prolong overall life. Going outside that range is going to cause premature wear and loss of life.

Thanks. How bad is it to go outside those ranges? I've been charging from 20-100 this past week.
 
Thanks. How bad is it to go outside those ranges? I've been charging from 20-100 this past week.

If you plan on using your phone for like 7 years and have still keep a good charge, yeah do that charge at 40 and don't go above 90 thing. If you plan to replace your phone in one or two years anyway, it shouldn't matter, and the only rule is to not let it run down to below 15% if possible.
 
Thanks. How bad is it to go outside those ranges? I've been charging from 20-100 this past week.
Hard to say with much certainty. Charging beyond 75-80% doesn't do as much damage as draining it completely. It's actually not that bad to run down to 25% before the wear rates drastically increase.

The wild card is every battery is different. You could have two identical phones come off the line next to each other and one battery may last two years with no noticeable capacity loss, and the other be dead in 6 months under the same conditions. Because there's no way to tell which is which before it's too late, going outside the recommended range regularly can become a crap shoot on longevity.
 
I let it get down to 6% the first night after my first full charge just to see what my SOT was. Was that a big no no or consistently doing that is bad?
 
I let it get down to 6% the first night after my first full charge just to see what my SOT was. Was that a big no no or consistently doing that is bad?
Doing it once now and then may not hurt it much, but yes doing it consistently does make it a much bigger risk.
 
I just top up regularly and enjoy using the phone.

Usually not letting it go below 30% if possible.

That's the total sum of thought I personally put into charging mg phone.
 
I have had my P2XL for nearly a year now. I don't go below 15% and try to charge around 30%. I charge to 100% but apparently Google has set it so that 100% isn't really full but is slightly less capacity to avoid the degradation thing. It also charges really slowly for the last 10% to avoid damaging the battery. My battery life is actually better now than it was when I bought it.
 
I charge at anywhere from around 40 % all the way down to 0%. Usually though, I'm charging between say 20% and 5%.
 
Thanks. How bad is it to go outside those ranges? I've been charging from 20-100 this past week.

I reckon that it makes no difference to battery health, irrespective of how high or low the charge point is.

But I can tell you this, it makes a lot of difference to a person's well being if they're not forever wondering if it's time to charge the phone battery, or wonder if the battery will last out the life of the phone. 😜👍🏻😁
 
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Lol, I charge whenever I feel like it. Last thing I care about is oh no, I let it get to 39%. Unless you are going to keep it for yearrrrrrrrsss does it matter.
 
If you plan on using your phone for like 7 years and have still keep a good charge, yeah do that charge at 40 and don't go above 90 thing. If you plan to replace your phone in one or two years anyway, it shouldn't matter, and the only rule is to not let it run down to below 15% if possible.

Letting it go to 20 isn't so great either. In terms of battery life longevity. I would stick with the 40-80 rule whenever possible. Regularly running your battery down to 20 and then charging it all the way back up to 100 will over time, may take a fair bit of time, impact your battery's health. I like more often smaller charges than once a day big charges. Just my opinion based on what I have read.
 
I have had my P2XL for nearly a year now. I don't go below 15% and try to charge around 30%. I charge to 100% but apparently Google has set it so that 100% isn't really full but is slightly less capacity to avoid the degradation thing. It also charges really slowly for the last 10% to avoid damaging the battery. My battery life is actually better now than it was when I bought it.

That is how all smart phones are, and electric cars, and anything that uses a battery. None of them allow the charge to go to complete zero or 100% for safety. There was an article last year about Tesla changing the battery capacity on its cars during disasters so that drivers would get more drive time.
 
That is how all smart phones are, and electric cars, and anything that uses a battery. None of them allow the charge to go to complete zero or 100% for safety. There was an article last year about Tesla changing the battery capacity on its cars during disasters so that drivers would get more drive time.
That Tesla example doesn't apply to phones. Customers can choose beteen a 60kWh and a 75 kWh battery but the 60 kWh is the same battery as the 75 kWh. Its software limited. Customers have to spend more money on the 75 kWh "battery".
 
That Tesla example doesn't apply to phones. Customers can choose beteen a 60kWh and a 75 kWh battery but the 60 kWh is the same battery as the 75 kWh. Its software limited. Customers have to spend more money on the 75 kWh "battery".
Actually I heard that about Google phones. They don't go to 100% or 0%. My mobility scooter battery is the same. It cannot run empty because the batteries don't deep charge.