Debunking the non-tickle charge theory?

[sveilien]

Ok, I've read about how the EVO doesn't trickle charge overnight on a charger. I inadvertently did an experiment on this.

Every night, I use the White Noise app to play thru a Bluetooth connection during sleep. I runs for about 8 hrs. Without the EVO plugged in (and at 100% charge), the app over Bluetooth uses about 30 battery over 8 hrs.

Now, if I leave my EVO plugged in over night after it has been charged to 100%, when i wake in the morning and take it off the charger, It does not suddenly dissipate 30% battery. At most, it might run though 10% in 15 minutes, but levels out to normal usage after that (right now I'm at 88% after 3 hours off charge).

It's weird man!

PS For anyone that is interest, I have this Bluetooth Receiver hooked to a powered speaker system in my room, I've been very happy with it.

http://www.amazon.com/Black-Diamond...tag=hawk-future-20&ascsubtag=UUacUvbUpU227342

 

[Robbie317]

I honestly don't have the "Non-Trickle" charging problem... I always charge my phone over night while I sleep and on average it drops the first 5 - 10% with in the first 1/2 hour to hour and then it seems to take a heck of a lot longer to drop the next 5 - 10%.... Lithium batteries don't drain in equal shares. I have even left my phone unplugged all night and then plug it up at my desk and wait 10 - 15 minutes after it turns green and pull it off and the battery drain is almost identical to when I let it charge all night and leaving it plugged after it hits 100% for a good 5+ hours.....

I still think battery use and drain is entirely user based and impossible to replicate from one user to the next. Heck I don't use my EVO the same each day... Each day is different depending on what is going on, spare/down time I have, # of e-mails/text/calls I get.....

I get pretty damn solid battery life.. Before the 6.28 update I averaged 12 - 16 hours going from 100% to 15% since the update I get 16 hours and still have 40 - 50% remaining when I go to bed at night with similar use...

 

[Kedar]

Edit: Nvm.

 

[meyerweb#CB]

Wow $30.00?

The deal on e-bay with the 2 batteries + battery charger = $10.00.

What does that have to do with a BT speaker system?

 

[Jerzyiroc]

I was on the phone with HTC Tech today in regards to a problem I was having with my Evo not being recognized by any computers.. Well after the problem was fixed I bought the trickle charge issue up to him and he actually agreed. He said he has the same issue and it does seem to be a trickle charge problem. He also said that he doesn't seem to think it's hardware related because there would be other issues along with a non-trickle charge issue. He said he thinks it's definitely software related. He also said Sprint is working on the 2.2 update and finds it hard to believe it'll take anywhere near Christmas for it to be released. Which was good to hear.

 

[Dave Blake]

What's a tickle charge... Sorry I had to...

 

[Kedar]

What does that have to do with a BT speaker system?

Sorry I must have been out of my mind when I posted that...
I swear I read that it was an external charger.

 

[eagle63]

I honestly don't have the "Non-Trickle" charging problem... I always charge my phone over night while I sleep and on average it drops the first 5 - 10% with in the first 1/2 hour to hour and then it seems to take a heck of a lot longer to drop the next 5 - 10%....

What you just described is exactly the trickle charge problem. Your battery should NOT drop 5 - 10% in the first half hour, unless you're actively using it.

 

[SilverZero]

But here's something to consider: I downloaded a battery graph that tracks the battery percentage and graphs it vs. time. When I plug my phone in in the evening, it takes about 2.5 hours to charge to 100%, it goes green (not sure if it's quite at 100% when it changes), but then it STAYS at 100% until after I've unplugged it 6 hours later the next morning. So if it is NOT trickle charging, the battery should go down steadily like it does during the day off the plug (a couple of % per hour even if it's just sitting there).

So it seems the Evo does NOT just stop charging when it is full and then run off battery. Yes, it does drop to 96% soon after unplugging - it's a pretty sharp drop on the graph, similar to when I've taken the phone out of standby and starting browsing the 'net or something. But it's not steadily leaking away during the night while it's on the charger.

 

[twan2001]

lol @ the thread title

 

[Jerzyiroc]

But here's something to consider: I downloaded a battery graph that tracks the battery percentage and graphs it vs. time. When I plug my phone in in the evening, it takes about 2.5 hours to charge to 100%, it goes green (not sure if it's quite at 100% when it changes), but then it STAYS at 100% until after I've unplugged it 6 hours later the next morning. So if it is NOT trickle charging, the battery should go down steadily like it does during the day off the plug (a couple of % per hour even if it's just sitting there).

So it seems the Evo does NOT just stop charging when it is full and then run off battery. Yes, it does drop to 96% soon after unplugging - it's a pretty sharp drop on the graph, similar to when I've taken the phone out of standby and starting browsing the 'net or something. But it's not steadily leaking away during the night while it's on the charger.

Eh not quite. The battery graph is getting information from the phone. Obviously the phone thinks it's still fully charged because the light stays green until you take it off the charger. So no, just because the graph shows it still being at 100% it definitely doesn't mean it's not trickle charging. It's actually the opposite, it proves that it's NOT trickle charging. Again, the app is getting information from the PHONE. The phone THINKS it's keeping it charged hence why the light stays green until it's taken off the charger. There's definitely something not right about it. The tech I spoke to was very confident in it being a software bug and NOT a hardware issue. Some proof of that would be the fact that rooted Evo's with different ROMS have dramatically increased the battery life. The tech also mentioned that the Froyo update might fix the problem which I kind of believe considering the increased battery increase from using different roms.. I mean I honestly don't know why people are even trying to debunk the trickle charge issue. There is evidence upon evidence supporting it and nothing to really debunk it.

 

[HondaCop]

Yea, I have noticed lately that if I hold my phone too tightly, it will start giggling. I think mine does have a tickle problem.

Posted from my EVO4G - Baked Snack 9.6 ROM

 

[Jerzyiroc]

Yea, I have noticed lately that if I hold my phone too tightly, it will start giggling. I think mine does have a tickle problem.

Posted from my EVO4G - Baked Snack 9.6 ROM

At least if you hold it you can still make a phone call.... Sorry... had to

 

[SilverZero]

At least if you hold it you can still make a phone call.... Sorry... had to

Hey-oohhhhh!

 

[Nebilim]

hehe i am giggling now. my phone doenst think its funny

 

[PookiePrancer]

I posted my humble thoughts on this issue in the original thread. I hope I understood the "theory" correctly: charge the Evo to 100% and the charger stops charging or providing power to the Evo, causing it to run off the battery even when connected?

 

[Darth Mo]

I posted my humble thoughts on this issue in the original thread. I hope I understood the "theory" correctly: charge the Evo to 100% and the charger stops charging or providing power to the Evo, causing it to run off the battery even when connected?

The theory has evolved a bit since the other thread. Check here:

http://forum.androidcentral.com/htc...other-battery-rant-post218859.html#post218859

 

[SilverZero]

I posted my humble thoughts on this issue in the original thread. I hope I understood the "theory" correctly: charge the Evo to 100% and the charger stops charging or providing power to the Evo, causing it to run off the battery even when connected?

I'm going to get scientific with this. Starting a new thread - yes, it's worth it to start a new thread.

EDIT: Never mind, I guess that previous post is more reasonable. I was just going to run an experiment, but I guess somebody knows what's going on. Since my battery never drops more than 5-7% in the first half hour, and then doesn't keep discharging at that rate, it doesn't really matter much to me. It should level off, though and never drop to, say, 80% even if left on the charger for 2 days, right?

 

[DizWhiz]

It may be placebo but my routine now consists of unplug in the morning, plug back in, wait for it to turn green, turn it off, it turns orange again, wait for it to turn green, start back up and unplug when it's done syncing.

With this method my phone doesn't drop below 90% for about 2/2.5 hours and I'm getting between 12-15hrs a day until I hit the low battery. This is with FB/Twitter/News set to once a day/manual, Wifi on at home and nothing else, and Wifi off once I leave.

 

[DizWhiz]

The theory has evolved a bit since the other thread. Check here:

http://forum.androidcentral.com/htc...other-battery-rant-post218859.html#post218859

And I should have just read your link first, you pretty much gave the scientific data to backup what I was saying!