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High battery voltage when charging [answered]

asked 2015-10-27 17:13:20 +0200

fishegg gravatar image

updated 2015-10-27 17:16:13 +0200

Hi there! Recently I found the battery life time became shorter than before. Then I used CSD Tool to test the battery. It passed every tests when discharrging. But if test the battery when charging, the voltage test would be failed (>4.35V). What does this mean? Does it mean the battery is in poor condition or something wrong in the phone? image description

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The question has been closed for the following reason "the question is answered, an answer was accepted" by JSEHV
close date 2016-02-01 18:08:02.781015

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answered 2015-10-27 17:14:47 +0200

updated 2015-10-27 17:17:12 +0200

While charging, the battery's voltage is higher than normally (otherwise it wouldn't charge :)), that's normal. For me shows 4.36V (over the max. amount) while full and charger connected.

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I see. But the voltage is higher than 4.35V. It's that normal?

fishegg ( 2015-10-27 17:17:17 +0200 )edit

@fishegg I believe so. Remember that the charger is inputting 5V into the phone ;)

jollailija ( 2015-10-27 17:19:19 +0200 )edit

Yeah it's inputting 5V but the circuit in the phone may decrease it to 4.35V. Is that right? And I ask other to test his battery and his battery passed the test.

fishegg ( 2015-10-27 17:22:27 +0200 )edit

How full is your battery? For me it also passes the test while charging when the battery isn't close to full.

jollailija ( 2015-10-27 17:24:06 +0200 )edit

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Asked: 2015-10-27 17:13:20 +0200

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Last updated: Oct 27 '15