1. claudiafields's Avatar
    I've had two Samsung Duos smartphone so far and both ended up with the battery bloating? can anybody explain when smartphone batteries bloat like this. Usually, we use various types of batteries in various devices. But most of the time, smartphone batteries bloat than on other equipment.
    10-31-2019 12:12 AM
  2. mustang7757's Avatar
    I've had two Samsung Duos smartphone so far and both ended up with the battery bloating? can anybody explain when smartphone batteries bloat like this. Usually, we use various types of batteries in various devices. But most of the time, smartphone batteries bloat than on other equipment.
    Possible using wrong chargers.
    10-31-2019 12:13 AM
  3. CellPhOneAGe's Avatar
    This indicates that the battery life is over. To avoid battery bloating, you have to use the original charger as much as possible, or use the brand-approved charger. However, it is recommended that you bring your purchase invoice, repair card, mobile phone, battery to the local Samsung after-sales service center, their professional engineers will help you to carry out on-site inspection and judgment.
    10-31-2019 01:24 AM
  4. B. Diddy's Avatar
    can anybody explain when smartphone batteries bloat like this.
    Do you mean why they bloat like this? See this for the why: https://www.ifixit.com/Wiki/What_to_...wollen_battery
    Laura Knotek likes this.
    10-31-2019 02:05 AM
  5. milleniumdroid's Avatar
    Brand approved charger has nothing to do with it. The phone should usually have protection should your aftermarket charger misbehave. The wall "charger" is more of a power supply, and the actual charger is inside the phone and controls the safe charging of the battery. As others have said, your battery just reached end of life.
    12-27-2019 03:34 PM
  6. PackersOwner1's Avatar
    Brand approved charger has nothing to do with it. The phone should usually have protection should your aftermarket charger misbehave. The wall "charger" is more of a power supply, and the actual charger is inside the phone and controls the safe charging of the battery. As others have said, your battery just reached end of life.
    Exactly. USB power by itself is not suitable for charging batteries. To properly charge a battery, you must have some sort of charge controller that detects the battery's state of charge, and delivers the correct voltage and current. Some sort of DC-DC converter is used to create the right voltage for that particular battery.

    The original USB power specification allowed up to 0.5A current at 5V, for 2.5W of power transfer. And that was for "high-power" devices! Quick charging bumps that up to as much as 36W, which is a lot to dump into a device the size of a phone that has no heatsink. IME, early versions of Quick Charge tried to charge phone batteries faster than was safe. My newer phones have power supplies limited to 18W.

    If you have a phone that's prone to battery bloat, one thing you can do is avoid quick charging by using a USB power source that doesn't support Quick Charge. A USB power source that supplies no more than 2A at 5V (a lot of generic USB power ports do this) will charge a phone in a reasonable amount of time, but not so fast that the battery bloats. Also, don't let your phone go down to almost dead before you charge it, but don't leave it connected to USB power all the time. Every case of battery bloat I had was on phones that I kept plugged in 24x7.
    milleniumdroid likes this.
    02-07-2020 06:32 PM

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