Your battery gauge is lying to you (and it's not such a bad thing)

byrong

Senior Member
Jul 9, 2010
695
722
0
East Coast
I rarely have to spend long periods of time in the car, so I've never developed any strong opinion on the matter. I have a car charger that I use for trips that require navigation, but that's less than once a month.
 

k1mu

Senior Member
Apr 11, 2011
1,945
1,620
0
Virginia
I can't see how an automobile adapter which outputs 5 volts DC can be any way different from a wall charger that outputs 5 volts DC. The phone can't tell the difference and won't charge any differently.

Comments about the input (DC from the car, 12-14 volts or so) or the home (120 volts AC) aren't relevant since the charger should be putting out the same 5 volts DC.

If Motorola is saying that their car chargers are somehow different then they must be putting out more than the specified 5 volts DC. If so, then they're defective. They can't claim that EVERY car charger is equally defective.

(For reference, my undergraduate degree is in Electrical Engineering. If you're going to disagree, please explain why.)
 

hgrimberg

Senior Member
Nov 10, 2008
305
2
0
BA
www.grimbergarchitecture.com
Thank you very much for your technical explanation. It seems you know what you are talking about and I'll take your comment as the last word on this subject. I don't know how Motorola can be teaching their representatives that the car chargers are only to be used for short periods of time and in cases of emergencies and not as real chargers. Well, maybe this representative didn't understand it very well.


I can't see how an automobile adapter which outputs 5 volts DC can be any way different from a wall charger that outputs 5 volts DC. The phone can't tell the difference and won't charge any differently.

Comments about the input (DC from the car, 12-14 volts or so) or the home (120 volts AC) aren't relevant since the charger should be putting out the same 5 volts DC.

If Motorola is saying that their car chargers are somehow different then they must be putting out more than the specified 5 volts DC. If so, then they're defective. They can't claim that EVERY car charger is equally defective.

(For reference, my undergraduate degree is in Electrical Engineering. If you're going to disagree, please explain why.)
 

Logiic

Senior Member
Dec 28, 2010
194
8
0
Texas
Fantastic read. There are so many different opinions about batteries and bump charging and everything else you described; it's good to see some personal and university research to back something up.

Sent from my Incredible using XDA App
 

daut

Senior Member
Aug 24, 2009
218
30
0
Surabaya
I've already try calibrating battery. It works for couple of days..
but, after that, the problem show up again.

There is full notification (it show 100%), but after I unplugged it, I found my battery just 87%
what should I do?

I running on SGS on Darky 10RC6 (ginger)
Please help.

Regards,
Daut
 

trickster2369

Senior Member
Feb 15, 2011
2,620
1,002
0
SD
I've already try calibrating battery. It works for couple of days..
but, after that, the problem show up again.

There is full notification (it show 100%), but after I unplugged it, I found my battery just 87%
what should I do?

I running on SGS on Darky 10RC6 (ginger)
Please help.

Regards,
Daut
Here's what you could try:

Go to post #1 in this thread, read it.
Then,
read #2, #3, etc., until you reach the end of the thread(roughly 7 pages).
The thread contains a lot of great info, and just might answer your question.
 

dirtsky

Senior Member
Nov 16, 2010
818
227
43
Madison, OH
very nice read. it explained alot. i have the exact same phone (adr6300) and since i rooted it and put cyanogenmod 7 and incredikernel the battery life is phenomenal.
 

Rrryan2

Senior Member
Dec 5, 2010
585
195
0
This is definitely one of the smartest things I have seen on XDA. Or, for that matter, the entire Interwebs.

Outstanding work, sir.