Battery draining fast after it hits 5% of juice left

[Jesus Delgadillo]

I've noticed on my S20U Verizon that when I reach 5% of battery left, it drains to zero within 3 minutes. Usually every 1% lasts me 5 minutes, but once it hits 5% it dies to quick. Anyone else has noticed this or knows what could cause it? Or how to detect the issue?

 

[L0n3N1nja]

You do realize you shorten the life of your battery letting it drop that low right?

 

[Jesus Delgadillo]

Yep but I can't charge it while at work

You do realize you shorten the life of your battery letting it drop that low right?

 

[J Dubbs]

Yep but I can't charge it while at work

That's the absolute worst thing you can do to your battery..... you will kill it super fast Can you carry a small battery pack with you? Or maybe turn the phone off occasionally? At least run the extreme battery saver mode.

 

[Mooncatt]

To answer your original question, this is just the nature of Li-ion batteries and how their state of charge is calculated. The voltage curve is mostly flat until you get to the low end of charge level, then it drops like a rock. Once the charge level gets that low, the current draw increases as voltage decreases.

 

[mustang7757]

I've noticed on my S20U Verizon that when I reach 5% of battery left, it drains to zero within 3 minutes. Usually every 1% lasts me 5 minutes, but once it hits 5% it dies to quick. Anyone else has noticed this or knows what could cause it? Or how to detect the issue?

Samsung was supposed to address this in a update .

 

[B. Diddy]

I would agree that carrying a power bank would be a good idea. Look for one that can charge wirelessly, so that you can simply hold it behind the phone off and on throughout the day.

 

[Jesus Delgadillo]

Thank you this is what I was looking for, if it was normal behavior as it reaches low level of battery life.

To answer your original question, this is just the nature of Li-ion batteries and how their state of charge is calculated. The voltage curve is mostly flat until you get to the low end of charge level, then it drops like a rock. Once the charge level gets that low, the current draw increases as voltage decreases. View attachment 329463

 

[Jesus Delgadillo]

Unfortunately it hasn't been addressed and I'm in the November update. Let's see if anything changes with the next update which im almost certain will be 3.0/Android 11.

Samsung was supposed to address this in a update .

 

[Jesus Delgadillo]

Yeah I'm gonna look into them cause I'm working long hours and can't charge it as I'm all over the place while working

I would agree that carrying a power bank would be a good idea. Look for one that can charge wirelessly, so that you can simply hold it behind the phone off and on throughout the day.

 

[Mike Dee]

Samsung was supposed to address this in a update .

The last 5% or just battery life in general?

Battery percentages aren't real....it just an estimate based on a silly algorithm.

 

[Mike Dee]

Yeah I'm gonna look into them cause I'm working long hours and can't charge it as I'm all over the place while working

Either a battery pack or slap a zerolemon case on it if you don't mind the bulk.

 

[mustang7757]

The last 5% or just battery life in general?

Battery percentages aren't real....it just an estimate based on a silly algorithm.

Last 5%

 

[Jesus Delgadillo]

Last 5%. 6 and up is amazing, lasts about 5-6 minutes per 1 percent

The last 5% or just battery life in general?

Battery percentages aren't real....it just an estimate based on a silly algorithm.

 

[Mike Dee]

Last 5%

I don't let it get that far but in the past at 5 percent phones in general haven't been great

 

[mustang7757]

I don't let it get that far but in the past at 5 percent phones in general haven't been great

I do sometimes, and it drains very quickly, I don't remember this a issue before , 5% I believe could squeeze 30 more minutes

 

[Mike Dee]

I do sometimes, and it drains very quickly, I don't remember this a issue before , 5% I believe could squeeze 30 more minutes

You could squeeze blood out of a rock

 

[mustang7757]

You could squeeze blood out of a rock

I've seen with a rock

 

[Gayle Lynn]

Does the performance profile automatically change? Getting below 20% would be a good choice. Gsam battery might help see what happens.

 

[mustang7757]

Does the performance profile automatically change? Getting below 20% would be a good choice. Gsam battery might help see what happens.

I can't confirm and didn't pay attention in Android 10, I'm on the beta now and those setting are different, I would like to say it stays whatever power saving mode your current in .