Troubleshooting DXG battery life

Bricorn · 02-19-2013, 05:29 PM

Hi, I'm out of ideas and looking for some.
My battery life is down to about 3 days.

Wireless is off.
I've reset to factory,
re-added my books and the .json file,
let it index over 1,000 books - none are stuck (yes 1,000 is a lot, there's still over 2Gb free)
deleted all collections with more than a dozen books in them, made new collections with new names, and added the books to them
no change.

I can put it down in the morning with 3/4 charge and be almost out when I wake it in the evening.

I'm left with replacing the battery - they're cheap enough, but I'm loath to do it without being fairly sure that it will do the job.

Oh, it's 2 1/2 years old and I've read about 500 assorted books & short stories on it.

Any ideas before I buy a battery please?

eBay seems to have a lot of DX battery sellers, but all the batteries look the same, so I'd just buy the cheapest - unless anyone thinks that's not the best idea (I'm in the UK BTW).

Thanks for reading.

pidgeon92 · 02-19-2013, 05:52 PM

The battery is draining that far while it is asleep? It definitely sounds like the battery is coming to the end of its life.

The number of books loaded on it is completely irrelevant.

psycholoner · 02-20-2013, 01:27 AM

If you just re-added everything, the kindle will re-index everything and eat at your battery for a while. That might have been what cause it to drain so fast 'afterwards', but I'm guessing you only did that in the beginning because the battery was dying anyway.

Nothing wrong with cheap. Just make sure you get it from a source you can trust and make sure its a genuine KDX battery. You want to avoid third party batteries if you can. There usually isn't anything wrong with third party, but from my experience they might have less capacity or give false readings on remaining charge on the battery.

Bricorn · 02-21-2013, 05:21 PM

Thanks, battery ordered. I'll post the outcome once I've had it installed for a while.

Bricorn · 03-22-2013, 07:22 PM

Just thought I'd update this. New battery fitted, 10 days on first charge, 11 on second, probably about 15-20 hours use each time - and that's a lot of page turns, I read fast. So it was the battery. That's OK then, I didn't get the life I should have from it, but a new battery is minor.

Now, does anyone know how to re-set the battery meter? It's going from 50% charge to "feed me" in one go. Not critical, but it's useful to know how much charge is left.

Thanks

twobob · 03-22-2013, 08:54 PM

Hi. It is not required to reset the battery meter.

IIRC it simply calls up the gasgauge-info application that does not "learn" merely reports battery values as reported by the battery itself.

There is a basic battery report for KUAL if you would like slightly more detail.

Or you could just run the gas-gauge thing yourself via SSH. that's all the report does anyways.

HTH.

Bricorn · 03-25-2013, 08:00 PM

Thanks, I'll just hope that it starts working correctly after a few more charges.

twobob · 03-25-2013, 10:28 PM

is it an "Official" battery?

Sounds like it isn't emitting the information the scripts are expecting...

Bricorn · 03-26-2013, 06:12 PM

Quote:

Originally Posted by twobob

is it an "Official" battery?

Sounds like it isn't emitting the information the scripts are expecting...

Doubt it, it came from eBay.

twobob · 03-26-2013, 07:43 PM

hmm.. err.. I just dont know then,

I can tell you "thumb in the air" charge times for a near-new DXG.

if you have SSH access to the device you could run a few simple tests yourself and see what info the battery is splattering out.

The KUAL battery test might not be a bad place to start since that actually bypasses the need for SSH.

Hope that helps.

02-19-2013, 05:29 PM	#1
Bricorn Addict Posts: 289 Karma: 7788748 Join Date: Sep 2009 Location: Fun Town, Thailand Device: Kindle DXG	DXG battery life Hi, I'm out of ideas and looking for some. My battery life is down to about 3 days. Wireless is off. I've reset to factory, re-added my books and the .json file, let it index over 1,000 books - none are stuck (yes 1,000 is a lot, there's still over 2Gb free) deleted all collections with more than a dozen books in them, made new collections with new names, and added the books to them no change. I can put it down in the morning with 3/4 charge and be almost out when I wake it in the evening. I'm left with replacing the battery - they're cheap enough, but I'm loath to do it without being fairly sure that it will do the job. Oh, it's 2 1/2 years old and I've read about 500 assorted books & short stories on it. Any ideas before I buy a battery please? eBay seems to have a lot of DX battery sellers, but all the batteries look the same, so I'd just buy the cheapest - unless anyone thinks that's not the best idea (I'm in the UK BTW). Thanks for reading.

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02-19-2013, 05:52 PM	#2
pidgeon92 Wizard Posts: 3,144 Karma: 8426142 Join Date: Jun 2008 Location: Chicago, IL Device: Kindle PW2, Kindle Voyage, Kindle DXG, Boox M90, Kobo Aura HD	The battery is draining that far while it is asleep? It definitely sounds like the battery is coming to the end of its life. The number of books loaded on it is completely irrelevant.

02-20-2013, 01:27 AM	#3
psycholoner Enthusiast Posts: 34 Karma: 22 Join Date: Jul 2010 Device: Kindle DXG	If you just re-added everything, the kindle will re-index everything and eat at your battery for a while. That might have been what cause it to drain so fast 'afterwards', but I'm guessing you only did that in the beginning because the battery was dying anyway. Nothing wrong with cheap. Just make sure you get it from a source you can trust and make sure its a genuine KDX battery. You want to avoid third party batteries if you can. There usually isn't anything wrong with third party, but from my experience they might have less capacity or give false readings on remaining charge on the battery.

02-21-2013, 05:21 PM	#4
Bricorn Addict Posts: 289 Karma: 7788748 Join Date: Sep 2009 Location: Fun Town, Thailand Device: Kindle DXG	Thanks, battery ordered. I'll post the outcome once I've had it installed for a while.

03-22-2013, 07:22 PM	#5
Bricorn Addict Posts: 289 Karma: 7788748 Join Date: Sep 2009 Location: Fun Town, Thailand Device: Kindle DXG	Just thought I'd update this. New battery fitted, 10 days on first charge, 11 on second, probably about 15-20 hours use each time - and that's a lot of page turns, I read fast. So it was the battery. That's OK then, I didn't get the life I should have from it, but a new battery is minor. Now, does anyone know how to re-set the battery meter? It's going from 50% charge to "feed me" in one go. Not critical, but it's useful to know how much charge is left. Thanks

03-22-2013, 08:54 PM	#6
twobob ( ͡° ͜ʖ ͡°){ʇlnɐɟ ƃǝs}Týr Posts: 6,586 Karma: 6299991 Join Date: Jun 2012 Location: uti gratia usura (Yao ying da ying; Mo ying da yieng) Device: PW-WIFI\|K5-3G+WIFI\| K4\|K3-3G\|DXG\|K2\| Rooted Nook Touch	Hi. It is not required to reset the battery meter. IIRC it simply calls up the gasgauge-info application that does not "learn" merely reports battery values as reported by the battery itself. There is a basic battery report for KUAL if you would like slightly more detail. Or you could just run the gas-gauge thing yourself via SSH. that's all the report does anyways. HTH.

03-25-2013, 08:00 PM	#7
Bricorn Addict Posts: 289 Karma: 7788748 Join Date: Sep 2009 Location: Fun Town, Thailand Device: Kindle DXG	Thanks, I'll just hope that it starts working correctly after a few more charges.

03-25-2013, 10:28 PM	#8
twobob ( ͡° ͜ʖ ͡°){ʇlnɐɟ ƃǝs}Týr Posts: 6,586 Karma: 6299991 Join Date: Jun 2012 Location: uti gratia usura (Yao ying da ying; Mo ying da yieng) Device: PW-WIFI\|K5-3G+WIFI\| K4\|K3-3G\|DXG\|K2\| Rooted Nook Touch	is it an "Official" battery? Sounds like it isn't emitting the information the scripts are expecting...

03-26-2013, 07:43 PM	#10
twobob ( ͡° ͜ʖ ͡°){ʇlnɐɟ ƃǝs}Týr Posts: 6,586 Karma: 6299991 Join Date: Jun 2012 Location: uti gratia usura (Yao ying da ying; Mo ying da yieng) Device: PW-WIFI\|K5-3G+WIFI\| K4\|K3-3G\|DXG\|K2\| Rooted Nook Touch	hmm.. err.. I just dont know then, I can tell you "thumb in the air" charge times for a near-new DXG. if you have SSH access to the device you could run a few simple tests yourself and see what info the battery is splattering out. The KUAL battery test might not be a bad place to start since that actually bypasses the need for SSH. Hope that helps.