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Charging noncharging phone's battery in good phone

Rgarner

Android Expert
May 9, 2017
2,231
390
Since the "new" S5 apparently won't charge any battery, would it be ok to switch batteries in the "old" phone and thereby (I hope) keep them all charged? I would prefer to be able to use both phones as there are different things in them, including the sd cards. Ultimately I hope to figure out why the "new" S5 isn't charging and do something about that. Otherwise it seems not to be damaged.
 
I can't see any reason why not. If they are both S5's then the batteries will be compatible between them, including their charging circuits.

Have you tried cleaning the charging port? Sometimes lint or other crud gets in there and prevents the charging cable from making proper contact. Try blowing it out by with canned air, can't hurt and might help.
 
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You can do that but it's possible for lint from the Q-tip to get stuck in the port and make things worse. Canned air will blow out anything that's stuck in there that may be interfering with good contact.
You can get canned air/air duster at hardware, electronics, and office stores for a few bucks a can. It's a common item.
Best Buy will presumably charge you money to look at it and will either fix it by doing the same thing you could have done for free, say they can't do anything with it, or want a lot more money to take it apart and mess with it
 
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The hardware store has a can of electronics cleaner. It's about the same price as compressed air. Would that be a good idea?

I'd suggest buying the air. You want to blow out any dust or dirt that's inside the charging port, the air will do that. The cleaner spray is more for things like switch contacts, it can also be helpful with plug-in connectors but it won't displace large dirt deposits like the air will.
Of course we're trying to help you by remote control here, there's no guarantee this will work. This advice is based on experience and what has often succeeded in the past.
 
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Well, I finally took the plunge and got Wexford compressed air duster from Walgreens. It was kind of expensive, maybe 11 or 12 with the tax. I guess I just give the contacts a quick blast or two. Do you suppose it might also help my friend's LG that hasn't been working with the G Boom (Bluetooth)? The funny thing is his phone does work with the Wonderboom he recently got, also a Bluetooth speaker. I just don't get it.
 
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At last I used the compressed air on the "new" phone. It's apparently good for scaring cats, not much more. Seriously, I blasted the charger port and the contacts of the phone and battery. It fired up ok but there's the same old problem, the battery going from 96 to 94% and a message that SAMSUNG'S own charger is somehow not compatible with the S5. Rather than risk any more mischief, I removed the battery and unplugged the phone. Did I use the compressed air wrong, too much or not enough?
 
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