Database Develop

Mugen powerbattery 1800mah for legend full review

Hei,
Ever since i saw this thread, I was considering a better battery for my legend.
To begin with the stock battery (Standard HTC battery) that came with the phone.
1. It used to last me for 2 hrs 10mins of voice call
2. If GPS was on it takes about 25mins to fully drain from about 95%
3. between 80to40% whenever screen was switched on, phone used to heat up.
4. At times (lately) even when the phone was in stand by in my pocket, it used to heat up so badly, i had to refrain from keeping the phone in my pocket. It actually felt like a "hotpack" in my pocket.
Phone is just perfect except for the retarded battery that comes with it. Whats the use an awesome phone if it you cant go through a day of light to moderate usage without requiring a charge?
So i decided to try out the mugen power batter. I love my legend, so even though battery was a bit pricey about INR.2,153.00 (USD46.95) (after shipping). I ordered a mugen battery 1800mah from their official website on 8th Nov. They took about 14 days to ship it to India from Hongkong (3 days waiting as batteries were out of stock).
Received it a week back. and currently i am running the 4th recharge cycle.
Immediately installed the battery on receiving it. (Couldn't wait!!)
The battery came with instructions to fully charge the battery (even after its fully charged as indicated by the green LED on phone) for 10-12 hrs for each cycle and nearly drain the battery before charging it again. (I took it to 5% each time, charged for a minimum of 11 hrs)
The fit
I was dead scared seeing the comments in this thread. But the battery was a perfect fit, infact the same fit as the stock battery. It would directly slide out without any poking / fingering
Tip - There is a small red plastic stick in the battery compartment to assist in battery removal. I dont have to use it though
The following are the actual statistics i have written down after each cycle. (Help me post a screen shot pls)
Recharge cycle 1
1st charge for 12hrs continuoesly
Voice calls 29% - 45min 44 sec
wifi 30% - 7 hrs 22min
Display 27% - 2hrs 12min (full brightness for 1hr)
Mpas 8% - GPS -23min, data 10mb
cell standby 4% - 7hrs 22min
phone idle - 2% - 5hrs 12mins
Total 7hrs 22mins from 100% to 6%.
Dint record the 2nd cycle, but was difficult to drain the battery in the next 13 hrs, had to switch on GPS + music on for 30mins on speakers + torch app with about 80% brightness for 1 hr to drain it before 11pm the next day.
I wanted to charge battery for atleast 10 hrs before leaving for office
Recharge cycle 3 Unbelievable!!!
3rd charge for 11hrs
Voice calls 12% - 1 hr 15min 12 sec
wifi + bluetooth 44% - 37 hrs 12min (dint turnoff bluetooth/wifi) transferred about 153mb in this cycle
Display 17% - 3hrs 12min (played angry birds for 1hr!!)
Mpas 13% - GPS -14 hrs 12min, data 43mb
cell standby 9% - 7hrs 22min
phone idle - 5% - 5hrs 12mins
Total 37hrs 31mins from 100% to 4%.
As you could see there was a drastic increase in battery performance after the 3rd recharge.
------------
Note - I am using juice defender (free version) + the phone is on strictly GSM only mode. (Exhausted my monthly data quota on 3g )
Currently I am charging it for the 4th time. Will post the final results again.
Also as froyo users are posting better battery performance, expect even more longevity of the battery once i receive my OTA (damn ever eluding update)
Conclusion - Definitely its a drastic improvement from the stock battery and the best part is it resolves the only problem i had with my legend, heating of the phone for no reason!
Makes me wonder why legend doesn't come with such a battery on default purchase.
Thanks Mugen for such a great battery
Do drop your comments and suggestions below or any standard benchmarking tools that i can use ...

Review part 2
< Reserving for 4th, 5th and final cycle >

Heating up is unusual with legend under normal usage, are you sure it has to do with the stock battery?
Some people did report problems with juice defender, your case may be different though.
Gotta say mugen battery was very lasting initially if you follow their instructions properly, but after using it for couple of months I don't think iam getting that same performance, its much less.. though still better than the stock one.
My mugen fits lil tighter than the stock one, its hard to get it out without that red lever. Iam kinda surprised about yours being the same fit as stock one. Dunno if they changed anything.

lessirey said:
Heating up is unusual with legend under normal usage, are you sure it has to do with the stock battery?
Click to expand...
Click to collapse
No heating issues at all after replacing the stock battery with the Mugen one. Havent changed / installed any new apps / software for the past 2 weeks. 1 week with the new battery.
So i can confidently say the stock battery is the culprit.
lessirey said:
Gotta say mugen battery was very lasting initially if you follow their instructions properly, but after using it for couple of months I don't think iam getting that same performance, its much less.. though still better than the stock one.
Click to expand...
Click to collapse
Hope mine gives the same performance at a later stage as well. Can it be that you got used to the longer battery life and dont realize it now?
lessirey said:
My mugen fits lil tighter than the stock one, its hard to get it out without that red lever. Iam kinda surprised about yours being the same fit as stock one. Dunno if they changed anything.
Click to expand...
Click to collapse
I dont know if they have made any changes to the battery. My Mugen slides right out of the slot on tilting the phone after opening the case just like the stock battery!

pavan_bitsgoa said:
Hope mine gives the same performance at a later stage as well. Can it be that you got used to the longer battery life and dont realize it now?
Click to expand...
Click to collapse
Good luck to you
It could be that, but iam sure it doesnt last as long as it was initially.. but still better than the stock one for sure.
pavan_bitsgoa said:
I dont know if they have made any changes to the battery. My Mugen slides right out of the slot on tilting the phone after opening the case just like the stock battery!
Click to expand...
Click to collapse
Mine doesnt slide right out like the stock battery, it does need lil effort. (ie. the red lever) May be they made some changes after selling many pieces ?

lessirey said:
Gotta say mugen battery was very lasting initially if you follow their instructions properly, but after using it for couple of months I don't think iam getting that same performance, its much less.. though still better than the stock one.
Click to expand...
Click to collapse
I've experienced the same short life when charging through USB, but when I use the wall charger, it lasts much longer.

Going to bite the bullet & try out one of these, just awaiting the money to be put in my PayPal account.

great review..pavan
I would like the link to official page exactly where u did shop and also the detailed battery product number which we have to select...I am from Mumbai..

zabaknilesh said:
great review..pavan
I would like the link to official page exactly where u did shop and also the detailed battery product number which we have to select...I am from Mumbai..
Click to expand...
Click to collapse
xxx.mugen-power-batteries.com/htc/htc-legend/mugen-power-extended-battery-for-htc-legend-bb00100-1800mah.html
Change the xxx to www

Battery life?

Hi all lucky owners of lg optimus 2x,
I want to ask you a question about battery life of optimus 2x . Is it really better than single cored ones or same, i m not expecting better life really
Sent from my HTC Desire using XDA App

There's a good review in the optimus 2x forum:
http://www.optimus2x.net/index.php?topic=156.0
Conclusion:
30mn YouTube HD (wifi)LG Optimus 2X: 9% battery​Google Nexus S: 7% battery​30mn Neocore (3D graphics)LG Optimus 2X: 12% battery @ 74FPS​ Google Nexus S: 9% battery @ 54FPS​8hrs of stand-by LG Optimus 2X: 2% battery​ Google Nexus S: 3% battery​

Wow, quite good !!!!!!!!!!!!!!!!!!!!!

I think that test is a bit flawed... PaulOBrien reported that the Nexus S exaggerates it's battery % quite seriously...

pokerfake
You are used o2x. What can you said about battery life of subj? On sleep mode? On used mode?

Here is an interesting test of battery life of the lg o2x.
htt p://anandtech.com/show/4144/lg-optimus-2x-nvidia-tegra-2-review-the-first-dual-core-smartphone/15

my battery life blows :/

Well, mine has a pretty good battery....you know now I have time, so I just keep playing with it all day, so with auto-brightness and WiFi always on, playing pretty much all-day I got through 1 day without my charger. Without wifi and less playing I think 2-3 days could be easily achieved.

I am using V10d rom unrooted.
It happended several times now. I need to change SIM cards often as I travelled to different areas during my work. Before I pull out the battery,it is at 50%. After I change SIM card and put back the battery, it drop to less than 17%. It takes me less than a minute to change the SIM card. What happened to the battery??

Use juicedefender
Sent from my LG-P990 using Tapatalk

I managed to get 3 days+ out of it under average use. Could probably easily manage 4+ with setCPU or something underclocking the processor and turning off data, etc.

Meltus said:
I managed to get 3 days+ out of it under average use. Could probably easily manage 4+ with setCPU or something underclocking the processor and turning off data, etc.
Click to expand...
Click to collapse
which rom do you use, kernel, what apps do you have running? can you give some infos about your system?
thanks!

Yeah spill the beans i can normally get 20/25 hours on lightish use. Would love to know how to get it to 2 days with room to spare for charging
Meltus said:
I managed to get 3 days+ out of it under average use. Could probably easily manage 4+ with setCPU or something underclocking the processor and turning off data, etc.
Click to expand...
Click to collapse
Sent from my LG-P990 using XDA App

i'd like to know too. My battery life sucks. Barely make it through a day now. On MCR FR17..

This is one of many threads about this.. But i'll respond anyway.
I had same issue, after some tests, i found out its GSM part of phone thats draining the juice. With airplane mode on it was about 3% in 8h. I was on BlazingDragon, with some apps, normal phone use It lasted 24h on standby without any use, no more.
Yesterday, i tried to flash (lastest for central europe) stock firmware, including baseband, simply i got the phone into factory state. And well, during night with data off it was 1% (yes, you are reading it right, i woke up with phone on 99%), now 10h later with lighter usage (some mp3, not much, a little of tapatalk, gmail push on) i'm at 78%.
I dont have any software except tapatalk installed atm. Dont think my problem with with BlazingDragon rom thou, i suspect some application caused it, but dunno which one
I think it will last 2 days with current usage, and several days with data disabled (using it as plain old phone only for calls )
PS: I dont use any JuiceDefender etc..

Iam using slicks rom, if i only write sms and surf sometimes, i have to charge every third day, but if i playing THD games, i have to charge after 3-4 hours

+1
the stand by time is really nice but gaming sucks out everything from my battery

Other than the battery drain during standby, my current observation is that, say if my battery was at 50% before I pull out the battery (say if I need to change SIM card), after I changed SIM and put the battery within one minute, it suddenly drops to less than 17%. Why the battery loss 33% in no time?
People keep saying that the phone can last a week if it is on airplane mode, or by turning off data 3 days, but then why we need a smartphone of such build?
Has anyone compare the other dual core or tegra2 phones in the market how they perform battery life? Do they have such awful battery drain standby? LG said the battery drain was due to incompatibility of tegra2 and android 2.2. Why sell the phone in the first place? This problem starts from day 1. LG no QC or just want hiding this problem from customer?

Oldcow9999 said:
Other than the battery drain during standby, my current observation is that, say if my battery was at 50% before I pull out the battery (say if I need to change SIM card), after I changed SIM and put the battery within one minute, it suddenly drops to less than 17%. Why the battery loss 33% in no time?
Click to expand...
Click to collapse
it looks like a calibration problem. Either 50% or 17% reading was false.

Just did two full days after reflash with MCR.

Battery power for LG Optimus 2x

Hello all!
I am new to the forum so I hope make it without any errors.
I bought the Optimus 2x cellphone last week whith the hope of getting the good one (the one without freezes and black screens) fortunately the cell worked very nicely. I updated to gingerbread and I feel it very good. But I have the good known problem of battery consumption.
Now I have a battery related question. After the update I charged the phone and get the battery indicator stuck at 100% I rooted the phone, installed Battery Calibration and calibrated the phone (left the battery to reach 0% then fully charged to 100% hit calibrate and left the telephone fully discharge again)
The issue is that when the thelephone was at 100% the voltage indicator of the battery calibration was in 4100 mV and here comes the weird thing. When reached 0% the voltage indicator was saying 2000mV.
My question is if this values are right. Someone with good battery duration and the Battery calibration installed could tell me the correct values? I thought that the phone shut down when battery was down to 0 mV but maybe the problem is that my battery is just using "half" battery.
Sorry for my english. I am not native english speaker.
Any help will be highly appreciated.
Thanks

That is voltage, 3300mv = 3.3 volts.
Fully charged the battery would be at 4180mv, fully discharged is around 3200mv usually, or a bit higher.
The phone shuts off when the battery gets below the usable range, which I believe is slightly above 3000mv.
So yes a range of 3.3 to 4.2 volts is perfectly normal for a 3.7v battery.
Sent from my Optimus 2X using Tapatalk 2

Hi! Thanks for your reply. So I think I should get used to it. My battery doesnt last more than 12 hours of my regular use. A some internet browsing and some messaging. No music, videos, or games.
Someone recommends the extended batteries of 3500 mAh for this phone? That will make the phone last more time?
Thanks in advance!

Reaper511989 said:
Hi! Thanks for your reply. So I think I should get used to it. My battery doesnt last more than 12 hours of my regular use. A some internet browsing and some messaging. No music, videos, or games.
Someone recommends the extended batteries of 3500 mAh for this phone? That will make the phone last more time?
Thanks in advance!
Click to expand...
Click to collapse
Hi Reaper511989, I have bought an extended battery from HERE. It is fatter, but not ugly. And the battery lasts a lot longer. I use it when I'm travelling. I have no idea where in the world you are, but the battery was from a company in the UK.
Have fun. Anil

Huge Battery drain on DjangoManouche/Guestekrnl
Hi,
I was on CM7 kang of temasek and I decided to flash a stockbased rom.
Now I'm on :
DjangoManouche 1.2 rom
Guestekrnl V1.6.1
BB V20Q with ril
I am using Go launcher which comes with the rom
The battery drain is incredibly huge, 8 hours tops with very little use
Anybody some ideas ?

your lucky. i get 6. if im playing 3 albums of mp3's during work. nothing on. just 2g.
imagine if i turned on gps,wireless,bt 3g/4g ahhhh . (cant use fone how its sposed to be used) have ot turn it DOWN a notch. its to HUNGRY on juice. seriously lookin @ one of those MUGEN batteries.

6 hours is just wrong... in the most intense usage you should get 2 hours of screen ON time.. Wifi with 2g on trolling forums with browser/tapatalk should be 4 hrs.
Sent from my Optimus 2X using Tapatalk 2

R0B3RTF1SH3R said:
your lucky. i get 6. if im playing 3 albums of mp3's during work. nothing on. just 2g.
imagine if i turned on gps,wireless,bt 3g/4g ahhhh . (cant use fone how its sposed to be used) have ot turn it DOWN a notch. its to HUNGRY on juice. seriously lookin @ one of those MUGEN batteries.
Click to expand...
Click to collapse
6hours listening to music is pretty normal. If you want longer battery live, stop using the device.
Sent from my HTC Wildfire using XDA

grognaz said:
6hours listening to music is pretty normal. If you want longer battery live, stop using the device.
Sent from my HTC Wildfire using XDA
Click to expand...
Click to collapse
That doesn't give you more battery life.. sigh
Sent from my Optimus 2X using Tapatalk 2

Mungulz said:
That doesn't give you more battery life.. sigh
Sent from my Optimus 2X using Tapatalk 2
Click to expand...
Click to collapse
Well in that case you might wanna repair your device since you seem to have the same issue with all roms. That should not be the case that it uses the same amount of battery without using it, especially if no app is loading the cpu....
Sent from my HTC Wildfire using XDA

well actually. cm7 i got about 5-6 hours batt life, cm9 i got no more than 8, GB (stock rom) can usually go from 5-8 hours. but with no bugs. so i am back on GB.
so i dont think device is broken/dodgy since the batt life fluctuates a little. depending on the rom.
my main issue is, ive been reading about ppl using froyo and going to GB and having mass battery drain. now im thinking about going to froyo.

R0B3RTF1SH3R said:
well actually. cm7 i got about 5-6 hours batt life, cm9 i got no more than 8, GB (stock rom) can usually go from 5-8 hours. but with no bugs. so i am back on GB.
so i dont think device is broken/dodgy since the batt life fluctuates a little. depending on the rom.
my main issue is, ive been reading about ppl using froyo and going to GB and having mass battery drain. now im thinking about going to froyo.
Click to expand...
Click to collapse
Could you please share your findings? Since I'm having the same problem and started thinking about returning to stock as well.

[Q] Galaxy S I 9000 Battery Drain Issue

Hi,
I am recently facing a heavy battery drain issue with my Galaxy S. The battery drained fully even in stand-by, within 10-12 hours.
So, I now replaced with a new battery(the battery was already 2 years old).
But, with this new battery too, it gets only around 20 hours of light use(3G, Music, Video drains the battery a lot). Also, the battery never shows fully charged unless it charges for a full night. though it reaches 100% around 3 hours, but still drains within evening.
I got my motherboard replaced recently, facing a network issue and was using the old battery for the first 2 weeks before replacing it with new one(1650 mAH).
So, my question is, whether the problem is related to my battery or is it with my motherboard?
Can anybody help me in this??

Are you using a custom Rom
Sent from my GT-I9000 using XDA Premium HD app

was using, now reverted back to stock rom... still d same, barely lasts half a day.. with nearly no usage....
Also, the Battery monitor widget says the capacity is 1500mAH, but this is a 1650 mAH battery, the voltage level seems to be ok

Gowtham34 said:
was using, now reverted back to stock rom... still d same, barely lasts half a day.. with nearly no usage....
Also, the Battery monitor widget says the capacity is 1500mAH, but this is a 1650 mAH battery, the voltage level seems to be ok
Click to expand...
Click to collapse
I know this is going to sound strange, but is there any specific app you are using when this happens, the reason I ask a friend uses facebook and it drains his battery from a high percent down to 0 and shuts off the phone in less than a minute.

[Q] I879 battery life

I have flashed my Att I897 with RemICS JB rom, and then I ran the battery dead. Then I fully charged it and it doesn't last 5 hrs now. I even calibrated the battery. Any ideas, or is this normal with custon rom?

Have you tried any other roms? Download a battery stat app let it run a few days and see what's using up all of the battery. Did this happen prior to flashing or no?

x0ne215 said:
Have you tried any other roms? Download a battery stat app let it run a few days and see what's using up all of the battery. Did this happen prior to flashing or no?
Click to expand...
Click to collapse
I have been running this rom for a few weeks, with no issues. Then went out and bought a new phone, and my brother needed one so I gave my I897 to him . I reflashed it, to clean everything up and let him put on the apps he wanted. And the battery does with in 4-6 hrs. I will d/l the stat app and see where is goes.
I have another I897 runnig the same rom, on my daughters phone, and it has great battery life still.

added thoughts
if your brother is making heavy use of the phone, with screen on much of the time, then 4 to 6 hours is normal.
running the batt dead once shouldn't kill it. there are protections in pm chip to stop before batt voltage gets too low.
aging, as in several hundreds of charge cycles, will reduce batt capacity to half or less of original capacity.
---------- Post added at 05:26 AM ---------- Previous post was at 05:17 AM ----------
oh, and swapping the batteries between the two phones and running a few days will tell if battery age is the problem.

I'd say it's time for a new battery. 2y old battery has significantly reduced capacity. I'm using original Samsung Epic 4G Touch SPH-D710 1800mAh battery, fits well in Captivate with stock cover. Battery life is very good for a smart phone. Stand-by >48h easily, holds >18h with about 2h talk + 3-4h screen on. Currently on SlimBean 2.5 ROM. Search eBay, it's about $15 only. Avoid cheap noname 1800mAh (or even more "on paper") Chinese batteries, usually the real capacity is well below claimed capacity.

Val D. said:
I'd say it's time for a new battery. 2y old battery has significantly reduced capacity. I'm using original Samsung Epic 4G Touch SPH-D710 1800mAh battery, fits well in Captivate with stock cover. Battery life is very good for a smart phone. Stand-by >48h easily, holds >18h with about 2h talk + 3-4h screen on. Currently on SlimBean 2.5 ROM. Search eBay, it's about $15 only. Avoid cheap noname 1800mAh (or even more "on paper") Chinese batteries, usually the real capacity is well below claimed capacity.
Click to expand...
Click to collapse
I was getting a good 10 hrs on it till I reflashed it this last time. I had great battery life with that little phone. That includes texting and FB'ing talking
I have 2 more and I still get great battery life.

I've never tried RemICS JB but I'm in doubt the ROM itself is causing battery drain. I'm getting almost same battery live with CM10 Stable, PAC-ROM, SaltyBean SE, SlimBean. Currently running SlimBean. Make sure it's not an app you install after flashing the ROM. Never restore system data from your previous ROM, just user apps + data. Look at the battery panel and you'll see what is draining your battery. Btw, clearing battery stats does nothing. You can't really calibrate the battery. Android OS will adjust battery meter automatically after 2-3 recharges.

Val D. said:
I've never tried RemICS JB but I'm in doubt the ROM itself is causing battery drain. I'm getting almost same battery live with CM10 Stable, PAC-ROM, SaltyBean SE, SlimBean. Currently running SlimBean. Make sure it's not an app you install after flashing the ROM. Never restore system data from your previous ROM, just user apps + data. Look at the battery panel and you'll see what is draining your battery. Btw, clearing battery stats does nothing. You can't really calibrate the battery. Android OS will adjust battery meter automatically after 2-3 recharges.
Click to expand...
Click to collapse
Yeah. I found out one prob was he was trying to charge it with just hooking it up to a pc. Know it seems back to normal since he used the wall charger, for a overnight charge

I've charged from the PC many times with decent battery life results... Don't know if that's the reason why the battery life has been cut short.
A good way to gauge what is causing the battery drain would be to do as ValD said. See what is using up the most battery life from the battery panel and try to deduce it from there.
Have you tried full wipe, re-d/l the ROM, and flashing the ROM again? Double check the md5 or sha1 code from the website when you d/l the ROM too.

numskull223 said:
Yeah. I found out one prob was he was trying to charge it with just hooking it up to a pc. Know it seems back to normal since he used the wall charger, for a overnight charge
Click to expand...
Click to collapse
yeah, some PC only provide max 100ma per port, which means ~ 15 hrs. and the cap in phone for usb is set to 350ma, or about 5 hours, unless you have kernel that supports fast usb charging.
still, if the phone was charged to 100%, it shouldn't matter whether AC charger or PC used. Was he not charging it to 100% ?
fyi, the difference to phone is that pins 2 and 3 of usb are shorted in AC charger. This causes phone to allow higher charging current, up to 900ma, or as much as battery can take without overheating.