Q&A for How to Revive a Cell Phone Battery

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  • Question
    What should I do if my phone has water damage?
    Josef Storzi
    Apple & Mobile Phone Repair Specialist
    Josef Storzi is an Apple and Mobile Phone Repair Specialist and the Owner of Imobile LA, a mobile phone repair company based in Los Angeles, California. Josef specializes in repairing screens, charging ports, batteries, water damage, speakers, and microphones on all mobile phone brands including Apple, Samsung, LG, Nokia, and Sony. He also specializes in tablet, laptop, and computer repairs as well as the pros and cons of recent mobile software updates.
    Apple & Mobile Phone Repair Specialist
    Expert Answer
    The first thing to do for any electronic device that has liquid damage is to remove its power source. This will stop your device from becoming damaged further. For phones, this includes both the charger and the battery. In many cases removing all power sources successfully may prevent damage from occurring to your device. For many newer devices, the battery is not user-removable. In cases where the battery is not user-removable visit your local repair shop as soon as possible in order to have the device professionally disassembled and inspected.
  • Question
    Will putting my phone in rice fix water damage?
    Josef Storzi
    Apple & Mobile Phone Repair Specialist
    Josef Storzi is an Apple and Mobile Phone Repair Specialist and the Owner of Imobile LA, a mobile phone repair company based in Los Angeles, California. Josef specializes in repairing screens, charging ports, batteries, water damage, speakers, and microphones on all mobile phone brands including Apple, Samsung, LG, Nokia, and Sony. He also specializes in tablet, laptop, and computer repairs as well as the pros and cons of recent mobile software updates.
    Apple & Mobile Phone Repair Specialist
    Expert Answer
    In most cases, this will not help. Modern mobile devices are well sealed, which prevents the rice from making its way inside the device in order to absorb the water.
  • Question
    What can you do if the battery has expanded?
    Community Answer
    If the battery is bulging, consider getting a new battery. Using the bulging battery can cause damage to your device and other unwanted problems.
  • Question
    The battery has suddenly bulged and is losing its charge quickly. What should I do?
    Community Answer
    The battery is defective. Replace battery and do not try to charge the old battery.
  • Question
    My battery is slightly fat but it is losing charge quickly; should I do the upper process with my battery?
    Community Answer
    No. A new battery is inexpensive, and taking these steps with a damaged battery could result in injury.
  • Question
    What if my phone powered on again but my battery isn't charging?
    Community Answer
    The battery is dysfunctional. Try getting a new battery. They're usually inexpensive, unless it's an iPhone or iPad battery.
  • Question
    How do I identify the negative and positive terminals on a battery?
    Community Answer
    In general, the terminals will be marked with symbols: + for positive and - for negative.
  • Question
    Should I follow the above steps for a bulged battery?
    Community Answer
    No, you shouldn't as that can result in injury and the battery is beyond fixing.
  • Question
    How many minutes can the battery be stored in the refrigerator?
    Community Answer
    The fridge is not cold enough; do the freezer method. But if the battery is FWT or bulged at all, do not try any method on this article as it could result in injury.
  • Question
    What if my phone turns off suddenly, and only holds a charge of a few percentage points? What should I do?
    XxxRjayxxX
    Community Answer
    Your battery is dysfunctional. Replace it with a new one.They're usually inexpensive.
  • Question
    What if my battery is non-removable?
    Community Answer
    Get a new phone. You probably have an iPhone if you can't remove the battery. Try going to the Apple store and asking what they recommend.
  • Question
    How do I revive a cell phone battery if it is not removable?
    Community Answer
    Try going to a battery store. The technicians there can often replace phone batteries.
  • Question
    What if my battery has three terminals?
    Community Answer
    Use the furthest ones, and not the one in the middle.
  • Question
    What do I do if my battery doesn't charge at all when trying to revive it?
    Community Answer
    It can no longer hold power, which means the battery is bad. You'll need to purchase a replacement battery.
  • Question
    How do I remove a built-in battery from my phone?
    Community Answer
    You can't remove a built-in battery, at least not on your own. Take it to the manufacturer or your service provider.
  • Question
    How do I do hardware repair on a spoilt battery?
    Community Answer
    If your battery is in the least bit damaged physically (bulging or mishaped), won't hold a charge, or becomes warm to the touch while being charged, then here is no mechanical repair or electrical repair that should be attempted at all on your device's battery! These are lithium ion batteries, if handled or disposed of improperly they will explode or catch on fire! It is fairly inexpensive to replace them and to have a tech do the work. Replace the battery with a new one and dispose of the old one properly and your device will go on serving you well.
  • Question
    My phone's battery drains even when the phone is completely powered down. I pressed and held the power button and hit 'Power off', and it still drained. How can I revive it?
    Nathan Oravanakalathil
    Community Answer
    Take it to your nearest phone repair store if you can. Your phone battery might have died, so don't try to jump-start it.
  • Question
    How to jump start a removable battery with 4 terminals?
    Community Answer
    Use the same method - this is explained in the jump-start section. Place the negative wire to the negative terminal, and attach the positive wire to the furthest positive terminal. If the other terminals are in the center, use the ones on the edge.
  • Question
    After I take the battery (Samsung) out. Can I put it back in the phone after I wiped out moisture (and charge it)?
    Community Answer
    No, wait until the battery has warmed up til room temperature. Do not use it while it is still cold.
  • Question
    My Xiaomi phone doesn't work after I cross the sixty percent line, but how should I stop this problem from ruining the phone?
    Community Answer
    Perhaps it could be from the phone's IC (Integrated Circuit). Try changing it.
  • Question
    Can I use an alkaline or lithium 9-volt battery to jump start the cell phone battery?
    Johannes
    Community Answer
    No. A 9-volt battery is preferable to jump start the cell phone battery. Make sure you use electric tape, thin electric wire (red wire is positive + indicated on battery and black is negative - indicated on battery). Charge it for 30 seconds and do not exceed 40 seconds. Check by touching the battery to see if it is getting warm or hot. If it is, then remove the battery.
  • Question
    How do I repair a battery after it got wet?
    The Avgeek Official
    Community Answer
    Immediately remove the battery, wipe it gently with a dry cloth and put it in a plastic bag or a bowl with raw rice (as rice drains the moisture from battery). Place it on top of a shelf or somewhere safe for minimum 12 hours. Take out the battery from the plastic bag and clean it with dry cloth, then insert back into the phone and power on normally.
  • Question
    Will this work with a counterfeit battery?
    Community Answer
    Yes, if the battery is not irreversibly broken (bulged, visibly damaged, etc.), those steps should be able to help.
  • Question
    Do I need to use a 9 volt battery to revive a cell phone battery?
    Prabhat Sharma
    Community Answer
    Yes, you need to use a 9 volt battery to revive a cell phone battery or you can use freezing method; it takes time but it is more effective.
  • Question
    My battery is charging but every time that I unplug the charger, although its 100%, it goes back at 0%. How can I fix this?
    Prabhat Sharma
    Community Answer
    Your battery is dysfunctional. Replace it with a new one. They are inexpensive.
  • Question
    Will a cell phone battery explode if kept in the freezer?
    Community Answer
    Not, it won't explode. But it won't be healthier for doing this, either. The ideal temperature for storing Li-Ion batteries is between 0 and 35 degrees Celsius. If you're wanting to hide your phone in the freezer, be aware that this might damage some circuitry and any moisture present can harm both the battery and the phone.
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