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Old September 21st, 2012, 01:00 PM   #1 (permalink)
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Default "Like New Certified Replacement" Razr Battery Conditioning?

I just recieveed my CPO Razr. I was advised to drain the battery and fully charge it before the first use. Is that really required?
It is pre-owned so wouldn't that be kinda senseless? Unless VerizonMotorola replaced the battery.

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Old September 21st, 2012, 03:05 PM   #2 (permalink)
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waste of time on a Lithium Ion battery
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Old September 21st, 2012, 03:23 PM   #3 (permalink)
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waste of time on a Lithium Ion battery
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Old September 21st, 2012, 03:55 PM   #4 (permalink)
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I just recieveed my CPO Razr. I was advised to drain the battery and fully charge it before the first use. Is that really required?
It is pre-owned so wouldn't that be kinda senseless? Unless VerizonMotorola replaced the battery.

You aren't reconditioning the battery, you are calibrating the phones battery meter. When they reset the phones software in the refurbishing process they would have erased the previous calibration. Definitely do the charge cycle. However, it is not necessary to do it before using the phone.
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Old September 21st, 2012, 04:11 PM   #5 (permalink)
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You aren't reconditioning the battery, you are calibrating the phones battery meter. When they reset the phones software in the refurbishing process they would have erased the previous calibration. Definitely do the charge cycle. However, it is not necessary to do it before using the phone.
Still not necessary. I've gone from a 3800 mah battery to a 2100 mah battery on my Gnex and had no issue with battery meter.
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Old September 21st, 2012, 06:59 PM   #6 (permalink)
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Still not necessary. I've gone from a 3800 mah battery to a 2100 mah battery on my Gnex and had no issue with battery meter.

Necessary, no. Recommended with good reasons, yes.
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Old September 21st, 2012, 07:02 PM   #7 (permalink)
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Necessary, no. Recommended with good reasons, yes.
I will bite. What reasons?
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Old September 21st, 2012, 09:15 PM   #8 (permalink)
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It's true about having to condition your battery meter on your phone, one full discharge then full charge should fix that.
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Old September 21st, 2012, 09:23 PM   #9 (permalink)
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It's true about having to condition your battery meter on your phone, one full discharge then full charge should fix that.
Read what I wrote above. Not necessary.
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Old September 21st, 2012, 09:51 PM   #10 (permalink)
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Says you. When I had my nexus and got the 3800 mah extended battery it reported 15 percent more than it really had. After a few charges it was spot on.
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Old September 21st, 2012, 09:53 PM   #11 (permalink)
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Also, why do you think battery life typically settles out after a few charges?

I have always had greater battery life after 3-5 charges with a new phone or new battery, and that is why it is suggested to discharge your battery then charge it back up.

Plus it doesn't hurt anything, so i dont see why you wouldn't do it anyway
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Old September 22nd, 2012, 07:07 PM   #12 (permalink)
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Lithium ion batteries aren't NiMh which need the full discharge. They work much better if they aren't killed.
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Old September 22nd, 2012, 08:26 PM   #13 (permalink)
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That's okay, because they die with roughly 5 percent left that way they don't go into an unrecoverable deep discharge
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Old September 22nd, 2012, 09:07 PM   #14 (permalink)
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FWIW, Battery University agrees with me - no need to cycle Lithium Ion batteries.

How to Prime Batteries – Battery University
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Old September 22nd, 2012, 09:10 PM   #15 (permalink)
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Then why do you get better battery life after a few cycles? I don't give a Damn what some website says, it's the real world facts that matter
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Old September 23rd, 2012, 11:55 AM   #16 (permalink)
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FWIW, Battery University agrees with me - no need to cycle Lithium Ion batteries.

How to Prime Batteries – Battery University

You aren't conditioning the battery, you are calibrating the phones battery meter. It has nothing to do with the mechanics ours chemistry in the battery. you need to do it so the phone would know exactly what voltage level corresponds with what percentage. If you didn't calibrate the battery, the battery meter on the phone could be significantly off. It can also prevent the phone from using the full charge on the battery (if the phone thinks 90% charge is full and 10% is empty).
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Old September 23rd, 2012, 12:33 PM   #17 (permalink)
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Originally Posted by euph_22 View Post
You aren't conditioning the battery, you are calibrating the phones battery meter. It has nothing to do with the mechanics ours chemistry in the battery. you need to do it so the phone would know exactly what voltage level corresponds with what percentage. If you didn't calibrate the battery, the battery meter on the phone could be significantly off. It can also prevent the phone from using the full charge on the battery (if the phone thinks 90% charge is full and 10% is empty).
Exactly what I was trying to say.
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Old September 23rd, 2012, 02:09 PM   #18 (permalink)
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Is there a way to speed up the calibration of battery meter? i.e. to be able to drain the battery faster without damage.

Belay that found "Fast discharge" on google play. It discharges from 80% to 2% in two hours which is good for a Razr Maxx that would have lasted two days with that reserve.
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Old September 23rd, 2012, 04:37 PM   #19 (permalink)
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You wanna calibrate it using normal usage, not with an app that drains the battery.
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Old September 28th, 2012, 09:30 AM   #20 (permalink)
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Then why do you get better battery life after a few cycles? I don't give a Damn what some website says, it's the real world facts that matter
Mine was quite repeatable on both batteries, from day 1.
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Old September 28th, 2012, 10:30 AM   #21 (permalink)
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Mine was quite repeatable on both batteries, from day 1.

Which is a sample size of one. Get back to is when you have a statistically significant sample. Besides, just because its consistent doesn't mean it's accurate. They could be consistently under reporting your charge level by 20%, for example.
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Old October 1st, 2012, 08:27 AM   #22 (permalink)
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Which is a sample size of one. Get back to is when you have a statistically significant sample. Besides, just because its consistent doesn't mean it's accurate. They could be consistently under reporting your charge level by 20%, for example.

*sighs* To make you feel better, I ran them both down. No difference in screen time or % used on either. And, I'm just the only one reporting it in this thread, compared to a couple that recommends the opposite. That's 33%, which I'd say is significant.
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Old October 1st, 2012, 08:49 AM   #23 (permalink)
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*sighs* To make you feel better, I ran them both down. No difference in screen time or % used on either. And, I'm just the only one reporting it in this thread, compared to a couple that recommends the opposite. That's 33%, which I'd say is significant.
Again, constistent battery life is not the same as good battery life. And why do you seem to care so much? Is it really an affront to you to suggest people calibrate the phone's battery meter?

FYI: that's not how statistics work. You're still a sample size of one, and thus not statistically significant.
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Old October 5th, 2012, 03:28 AM   #24 (permalink)
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Again, constistent battery life is not the same as good battery life. And why do you seem to care so much? Is it really an affront to you to suggest people calibrate the phone's battery meter?

FYI: that's not how statistics work. You're still a sample size of one, and thus not statistically significant.
So, in statistics, one isn't significant but two is?

Good battery life is based on usage, obviously, and not part of this thread.
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Old October 5th, 2012, 06:55 AM   #25 (permalink)
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So, in statistics, one isn't significant but two is?

No it isn't. Which would be an issue if our arguments were based solely on our personal usage. They aren't, their based on then known way Android actually uses batteries.

You don't agree with those facts. Fine, we get it. What exactly are you adding to your argument by posting things like this?
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Old October 6th, 2012, 02:03 PM   #26 (permalink)
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You don't agree with those facts. Fine, we get it. What exactly are you adding to your argument by posting things like this?
I am waiting for you to post something besides opinion. Wiping battery stats has been proven to be irrelevant. Heck, I could (and have) wipe them at any point and Android will still correctly calculate my remaining battery %.
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Old October 6th, 2012, 03:09 PM   #27 (permalink)
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That's your opinion. Where's the proof? Why is it still recommend to do a couple full charging cycles? Besides the fill capacity of the battery isn't right until you run it through some cycles.
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Old October 6th, 2012, 04:05 PM   #28 (permalink)
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I am waiting for you to post something besides opinion. Wiping battery stats has been proven to be irrelevant. Heck, I could (and have) wipe them at any point and Android will still correctly calculate my remaining battery %.
Because the battery stats file you are referring to stores data on what apps are using battery (the stuff that shows up in the Battery menu in the settings). It does NOT store information correlating the voltage levels in the battery with the batteries current capacity. Regardless, while there has been debate on whether wiping restoring that file improves battery life overall, there is no debate about whether it improves the REPORTING of the battery life by the OS. That is the phone telling you it's at 20% when it's actually at 40%, and that sort of thing. So even if it doesn't give you a minute's more use off a charge, making sure that data is as accurate as possible is still a helpful/worthwhile thing to do.

And again, why do you care so much, and how is bringing up other random tidbit's of "information" that are infact unrelated helping your case?
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Old October 8th, 2012, 12:53 PM   #29 (permalink)
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Originally Posted by rich6661 View Post
I just recieveed my CPO Razr. I was advised to drain the battery and fully charge it before the first use. Is that really required?
It is pre-owned so wouldn't that be kinda senseless? Unless VerizonMotorola replaced the battery.
I just charged mine all the way before I activated it.
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Old October 9th, 2012, 05:14 PM   #30 (permalink)
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And again, why do you care so much, and how is bringing up other random tidbit's of "information" that are infact unrelated helping your case?
Easy answer: I question the "status quo" in regards to posts that aren't backed up with links to actual data and claim statistics based on forums. (That includes my own.)
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