[Ahmed_Abdulghany]

i have a problem with my mobile it charging down while i was using it or using wifi i used many cable and original one and still the same problem and if i used a new cable it works for only one week and charging down.
Everyday i have to closed it and put it in charger for more than 10 hours to reach 80%
so where is the problem? what should i change in mobile?

Mobile: Samsung Galaxy Note 3

[B. Diddy]

Welcome to Android Central! Are you plugged into a wall outlet or a computer USB port? Computer USB ports don't supply much current, so if you're actively using the phone, the battery will often still go down while plugged in.

What are you doing while charging -- playing a CPU-intensive game? If you're doing something that uses a lot of battery, it can still outstrip charge rate.

Also, the Note 3 is very old, so the battery is probably pretty worn out. You can look into a replacement battery, but chances are any replacements out there are also very old, and therefore may also be worn out as well.

Please register on this forum, which will allow you to engage in discussion more easily, as well as post images. https://forums.androidcentral.com/as...community.html

[me just saying]

does it still have the original battery? if so, it is time to replace it.

[Ahmed_Abdulghany]

no i don't use computer usb port and not playing CPU-intensive game it was decrased whatever i do in mobile only rechage when i shut down it
Do you think i need to try another battery ? or something else may cause this problem i should check it ?

[Ahmed_Abdulghany]

yes its original battery since 2016

[B. Diddy]

It's time for a new battery, but like I said above, any replacement you get has probably been lying around for a long time, and has also deteriorated, so it could also give you the same problem.

[Ahmed_Abdulghany]

yes you are right any available battery will be old so how to know the best battery for my mobile?

[me just saying]

yes you are right any available battery will be old so how to know the best battery for my mobile?

imo, as long as the battery was not sitting without charge, it should still be good. just make sure you get the battery from a site that has a good return policy.

[Ahmed_Abdulghany]

imo, as long as the battery was not sitting without charge, it should still be good. just make sure you get the battery from a site that has a good return policy.

do you mean i should buy used one because new one will be sitting without charging for a long time?

[BergerKing]

[Thread moved to Samsung Note 3 subforum.]

Batteries can be NOS, or New Old Stock, meaning they were manufactured years ago, but have remained on a supplier's shelf since then. Materials in a battery will degrade some over time. If you look at a battery packaging sold in a store, they usually have a "Best By ____ date on them. They may still be usable, but not to the best efficiency they would have been, new. You might be able to find a 'replacement' battery manufactured more recently by a reputable manufacturer, too. I used a replacement battery in my ex-wife's Galaxy Tab 3 that worked perfectly, and bought a spare for later replacement, as well. This might be an option for you, but make sure there is a good warranty/service policy.

[me just saying]

do you mean i should buy used one because new one will be sitting without charging for a long time?

new ones usually have charge, though it may not be full charge. I don't know how long it will last just sitting around so that is why I suggested making sure of the return policy. was just on amazon and they have some on stock with recent reviews from verified purchasers. so depending on how much you trust their reviews, amazon usually has a good return policy when needed.