Batteries Plus - Samsung S7 Battery Replacement

[WartHog]

Recently had Batteries Plus in Santa Rosa replace the original battery in my AT&T Samsung S7 due to gradually decreasing battery life, IE not being able to get thru a day of light use without recharging. They say that they only use OEM Samsung batteries as replacements so I figured that was the best.

First battery they put in wasn't getting much better life out of a charge than the original so they said they would replace it. Second battery is marginally better but still not what I feel it should be for a brand new battery. Light usage for me is 1-3 short calls in a day with maybe a few texts/emails and a game of Solitaire thrown in. No streaming videos/music etc. I have Power Saving Mode set to medium and use Power Monitor periodically to put Apps to sleep. I've researched how to improve S7 battery life but nothing really seems to make much difference.

Is Batteries Plus really using OEM high quality batteries or am I just expecting to much from a S7 that I purchased from the original owner?

[Dan_Eastvale]

Probably OEM batteries sitting in storage since the S7 came out?

I've seen six year old NOS laptop OEM batteries that have lack of maximum capacity

Age thing

Example, I purchased a New Dell OEM battery in March this year for my 6 year old Latitude 7490 with a design capacity of 60,000 mWh
Even though new, the "actual" capacity is approx 48,000 mWh as shown in Windows battery report below:

Battery capacity history

Charge capacity history of the system's batteries

PERIOD FULL CHARGE CAPACITY DESIGN CAPACITY

2023-03-27 - 2023-04-03 52,141 mWh 60,002 mWh
2023-04-03 - 2023-04-10 47,836 mWh 60,002 mWh
2023-04-10 - 2023-04-17 47,310 mWh 60,002 mWh
2023-04-17 - 2023-04-24 47,107 mWh 60,002 mWh
2023-04-24 - 2023-05-01 47,056 mWh 60,002 mWh
2023-05-01 - 2023-05-08 47,422 mWh 60,002 mWh
2023-05-08 - 2023-05-15 47,690 mWh 60,002 mWh
2023-05-15 - 2023-05-22 47,635 mWh 60,002 mWh
2023-05-23 47,340 mWh 60,002 mWh
2023-05-24 47,340 mWh 60,002 mWh
2023-05-25 47,340 mWh 60,002 mWh
2023-05-26 47,340 mWh 60,002 mWh
2023-05-27 47,340 mWh 60,002 mWh
2023-05-28 47,340 mWh 60,002 mWh
2023-05-29 47,340 mWh 60,002 mWh
2023-05-30 47,340 mWh 60,002 mWh



Run this report in CMD prompt:

Battery report

run cmd as administrator

paste powercfg /batteryreport

run

[WoodTurner]

Could also be a combination of a few factors. In addition to what Dan said, with the push for 5g and the closing of 3g towers, the phone might be trying harder to maintain signal.

[arrix]

Probably have to reset the phone since it was used to the old battery.

[SactoDoug]

You might have apps in the background burning up your battery power. Go into your settings and battery. Look at what is using the most battery power.

[The Hamsterball]

The likely scenario is that these batteries are very old and remanufactured.

Samsung Galaxy S7's have not been out for over 6-7 years. Therefore it is very difficult to get a brand new Samsung battery.

If you want to know for a fact that you have a samsung brand battery, pull it out and then flip it over and look at the front and back. It should say, "Samsung" on it.

Even if it is a Samsung battery, it is most likely the case that the battery (whether Samsung or not) is remanufactured. Since the phone has not been produced brand new for almost a decade, and only may be available as a "remanufactured" version unless you find someone online that legitimately has a brand new one that was never used; It would also be the case that it is impossible to find a brand new battery from Samsung direct, since they do not support the phone anymore.

I would be surprised if this place is even using Samsung official batteries, which you can find out. Most likely they just have a vendor that sends them batteries to use.

Regardless if it is a brand new samsung battery, with the way newer applications and newer services, and features are these days compared to when the S7 was first released; everything is more data and battery intensive.

If you're just using the phone for only calls, then the battery may last a while.
But after some time, with the amount of data newer applications and services use, battery use increases.

Back when the S7 was released, there were not widely used apps. People didn't really use facebook or twitter or other services on their phone every single day. People never instant notified received e-mails all day long. You could actually set notifications for e-mails to 1-hour windows of time.

It could also be that your model and phone itself is just becoming less efficient with time. A phone that has been used for many many years, and has lost the ability to receive security and optimization updates from Samsung may start to be this way.

This is the reason iPhone models only 3 generations old start to get slower and last less with the new IOS versions they push to the phones.

Luckily, with Android, you can always buy a decently new phone (not more than 3 years old) for less than $500 if you have an issue with your phone.
But the issue with android's is that after a shorter timeframe they stop receiving updates. In addition to the phone becoming less efficient from years of use. And other factors above.