Hello. First time poster. Thanks in advance for any help. So I was trying to repair a friend's Droid 4 and took the battery out as you are not supposed to do. In doing so I ripped out the ribbon redering the old battery useless for obvious reasons. I purchased a new battery, with the ribbon, and installed it, but am still having issues. I do get more "action" than I did previously in that I get a battery display (showed 5% and then jumped to 100% at first, now showing 100%), but still not powering up. Any suggestions or help? I remember reading somewhere when it first broke about seeing the big question mark (which I did at first although doesn't seem to be displaying that any longer) and having to press something at that point to get it to boot up. Please help. My friend is ready to kill me.
Droid 4 Battery Replacement
- Thread starter Hiriqnu
- Start date
lloydstrans
Banned
- Joined
- Nov 16, 2011
- Messages
- 13,546
- Reaction score
- 5,936
Welcome to the forum, enjoy. Just hold on and somebody will help you out on that.
If it's not HD it might as well be a newspaper.
If it's not HD it might as well be a newspaper.
Had the same problem tonight. I was repairing the touchscreen digitizer for a friend and after putting it all back together I realized that it wouldn't turn on! So the first thing i tried (after looking at all the connections and rechecking my work) was plug it in to a power source. First power source I tried was the USB into computer... the result was a green light and nothing else. Second power source was the wall charger... then I got exactly as you described with your new battery. It would come up as 5% then 100% then off again!
My Solution:
Took it over to my work bench and pulled out my voltage meter to read the leads on the battery terminals. It read 2.699v DC and the battery is rated at 3.8v DC. What I have learned about Lithium batteries is that there is a threshold value that the battery power CANNOT go below, if it does then the fail-safe built in resistor will activate and stop ALL charging to the battery. (It's there because if it was to charge, it would run the risk of making the Lithium unstable and could explode or cause a fire) So I replaced it and all is well
In your case even though it's a new battery, I would still at least check it to see what volts it's actually outputting. Hope this helps
My Solution:
Took it over to my work bench and pulled out my voltage meter to read the leads on the battery terminals. It read 2.699v DC and the battery is rated at 3.8v DC. What I have learned about Lithium batteries is that there is a threshold value that the battery power CANNOT go below, if it does then the fail-safe built in resistor will activate and stop ALL charging to the battery. (It's there because if it was to charge, it would run the risk of making the Lithium unstable and could explode or cause a fire) So I replaced it and all is well
In your case even though it's a new battery, I would still at least check it to see what volts it's actually outputting. Hope this helps