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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

3500mah extended battery, charger vs kernal

my captivate is v2.2 froyo rooted w z4 and lagfix, My stock battery barely lasts me through a night at work,
I ordered a 3500mah battery from ebay and when i received it I charged it overnight with my phone off....
The next day was a miracle! Battery stayed at 100% for 2 hours, by the end of the day I still had 60% battery left!
I read that the first couple charges need to be cycled so i tried to drain the battery by playing a movie over and over with screen brightness and volume at max.....
the battery lasted forever, after getting it down to 7% I charged it overnight- sameway with phone off, but now nomater what i do it only lasts the length of a stock battery.
I tried unplugging,plugging back in, phone off , phone on, waiting hours after it says 100%(on charger overnight) and tried ac and usb charging, but it just isnt seeming to charge all the way.
I was going to buy a second extended battery and an external battery charger but all the external chargers i see on ebay say are only good for li-ion batteries up to 2000mah, plus i had to modify my otterbox defender case to support my new battery and it would be a pain to have to take case apart everytime i swap batteries.
Ive been reading for days about what to do to no avail, all the external chargers i see arent rated for 3500mah capacity and I wouldnt mind flashing a custom rom that would support extended battery charging but the more research i do the more confused i get.....
Is there a kernal out there that is stable and supports charging these batteries with no bugs or issues????
What custom rom would be best?
please help......
any info is greatly appreciated

you didnt need to start a new thread your questions were being aswered already!
http://forum.xda-developers.com/showthread.php?p=13320313#post13320313
its not the kernel

Thread closed due to double posting.

3500 extended battery decline in performance

I purchased the 3500 extended battery about 4 months ago. It was a great battery. It lasted me all day & then some off a single charge. Now it's not lasting as long as it used to. I'm having to charge in the middle of the day now. I put my original OEM battery in, & I'm getting better performance from it than with the 3500 battery now.
Anyone else experiencing less than stellar performance from the 3500 battery after having it for 4 months or longer?

cdf3 said:
I purchased the 3500 extended battery about 4 months ago. It was a great battery. It lasted me all day & then some off a single charge. Now it's not lasting as long as it used to. I'm having to charge in the middle of the day now. I put my original OEM battery in, & I'm getting better performance from it than with the 3500 battery now.
Anyone else experiencing less than stellar performance from the 3500 battery after having it for 4 months or longer?
Click to expand...
Click to collapse
I have the 2150 OEM, I can only suspect some reasons why
1) Cheap battery that does not hold charges well
2) You are draining the battery down to 0% a lot, killing the ability for it to keep a charge
3) Your phone is not calibrated properly so it shows it is charged to 100% but in fact it may have only charged it much lower

POQbum said:
I have the 2150 OEM, I can only suspect some reasons why
1) Cheap battery that does not hold charges well
2) You are draining the battery down to 0% a lot, killing the ability for it to keep a charge
3) Your phone is not calibrated properly so it shows it is charged to 100% but in fact it may have only charged it much lower
Click to expand...
Click to collapse
1) It's a Seidio brand, not some knock off, so it should be of good quality. It's been working fine up until the past month or so. I've had it for over 4 months now.
2) I've never drained the battery down to 0%. Contacted Seidio and they suggested that I let it drain to 0% for the next 4 to 5 charges, along with charging it an additional 2-3 hours after a complete charge. I'll see if that helps.
3) I've always had to bump charge it. It helps in making it last longer.

I don't think bump charging is helping the longevity of your battery. Not saying it doesn't last longer on a charge, but that it isn't good for the battery's overall lifespan.

cdf3 said:
3) I've always had to bump charge it. It helps in making it last longer.
Click to expand...
Click to collapse
Draining all the way down and overcharging it are the biggest ways to kill it off. The Seideo and most other batteries I think have a fail-safe for draining it all the way down, cutting it off early before it actually does.
This article is pretty helpful about your battery, if you haven't had the chance to read it, it may benefit you:
http://forum.xda-developers.com/showthread.php?t=871051

Bump charging did it.....
Where's ma rosie at?

I have been using the 3500 for about the same length of time you have been. I haven't really noticed a drop off in performance. Maybe a very slight drop off.. not much though. Still could get 2-3 days use on one charge if I wanted to.

I have the same issue with my 3500. I will try to re-calibrate it.

4 months seems to be pretty quick for a decline in performance like that. I would press Seideo to replace it.

You can try resetting the cells to how they were when it was brand new. All you have to do is completely deplete the battery of all charge (so it wont even turn on) then short it out with 3x the voltage (a 9v battery should work, make sure to keep the polarity the same) and fully charge it again, then it will be like new!
My dad (who is an electrician) found a guide for this on ebay and bought it just for the hell of it to see if it worked. We tried it on a battery I had for an LG VX8300 I had at the time and it worked beautifully, I've been doing it ever since!
I have no idea how this works, all I know is that it just does.

cdf3 said:
1) It's a Seidio brand, not some knock off, so it should be of good quality. It's been working fine up until the past month or so. I've had it for over 4 months now.
2) I've never drained the battery down to 0%. Contacted Seidio and they suggested that I let it drain to 0% for the next 4 to 5 charges, along with charging it an additional 2-3 hours after a complete charge. I'll see if that helps.
3) I've always had to bump charge it. It helps in making it last longer.
Click to expand...
Click to collapse
When ever you get a new battery you must condition it, exactly as sedio said full charge it, then drain fully 5 times. It makes the battery last much longer
Sources: I built one for my robotics team
Sent from my ADR6300 using XDA App

I got some 3,500mAh cheapies off ebay about 6 months ago and they are holding up just fine. I always run mine down to about 5% then fully charge. I bump charge them about once a month.

Well of course... After I'm pimping how great these batteries are, one quit working! My phone would just shut off with a light tap against something so I pulled the black sticker off of the battery, pulled it all apart, found the loose connection, bent the tab to make better contact, and put it all back together. All is good again.

I recently purchased this same battery read tons of good reviews not sure how i feel about the bump charging after reading the article that was within this thread but all in all it is a giant leap beyond the stock battery now if i could just find a case that would fit around it

To the OP. If youre running a kernel with SBC (Superior battery charging [trickle charging] w/e you wanna call it) they're known to reduce your battery life. also you may wanna charge the battery to 100% then wipe the battery stats on your phone.

I have the same battery and I've found that the phone has trouble reporting the percentage correctly. It tends to make jumps of about 5-10% instead of a steady decline. I switched to the original battery and it did not have this problem. I've also noticed that clearing battery stats several times helps (most of the time). As far as bump charging goes, it's perfectly fine to bump charge these batteries. The worst thing you can do to them is discharge them all the way.

Clearing the stats and cycling the battery through the phone a few times should fix that. It does that (big percentage jumps) when it's poorly calibrated.

POQbum said:
Clearing the stats and cycling the battery through the phone a few times should fix that. It does that (big percentage jumps) when it's poorly calibrated.
Click to expand...
Click to collapse
I second this. I have the same battery and its been off a few times. Battery stats get weird sometimes. It's certainly a better battery than the cheap Chinese batteries HTC uses.

Conditioning 3500 mAh battery

Just bought a 3500 mAh battery off of ebay. I was wondering do i need to condition this battery? If so what are the steps? I see conflicting info all over the place.
thanks!

Conditioning? Like calibrating?

Some batteries said to drain it completely first then charge for 8 full hours to condition it. That's why i was wondering if there was anything i needed to do to get the maximum amount of battery life out of it.

That's a great question. Usually I let it drain fully, then fully recharge. It's just an old habit of mine with new batteries.

usually when you get a new battery itll have some charge in it you need to power the device on let it drain completely till it wont turn on at all then let the battery charge 8-10hrs and you should be good.

New Extended Battery "possibly" 3'500 mAh + External Charger - "Update 10.16.2011"

New Extended Battery "possibly" 3'500 mAh + External Charger - "Update 10.16.2011"
Just recieved my new extended battery with extended back door for my Milestone 1. Bought it from here:
www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=180686832371&ssPageName=ADME:L:OC:CH:1123
It took a good month to arrive from china to europe, but it's finally here.
It weighs 47 gramms vs 27 gr for the standard BP6X and is twice as thick.
Can't say much about the accuracy of the amperage as I just fully recharged it with the external charger I ordered from here:
www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=250859367106&ssPageName=ADME:L:OC:CH:1123
As you can see it's quite cheap and although ordered on the same day as the battery, it arrived 3 weeks before..! (About 10 days after my order). It's working very good and sports also a usb port (5.2 Volts and 800 mA output) at the end for standard charging. I haven't tried yet which of the battery or the device will be charged first, though. Will report about it later.
I'll also report about real life battery time in a few days, after testing.
I'm still very happy with my good ol' milestone 1 (european droid 1), and although it's a little short on memory, latest CM 7.1 developpements make it very fast and usable.
Edit: Just tried to charge through the usb port of the charger, it doesn't work. I guess 800 mA is not enough, had the same issue with other car/home chargers. I think motorola's ones have 1A output. Even my Galaxy Tab's isn't powerfull enough... What a Milestone Beast!
Edit 2: Battery has reach 10% after 31 hours of standard use. As I though, real intensity most be around 2800 mAh and not 3500 mAh as stated. But it's still around 2x what we can expect from the original one. I run my Milestone on CM7.1 ROM and 1800MHz network.
Edit 3: I'm experiencing the "1% battery left" effect of some other devices' extended batteries for about 9 hours now! So until now It's been working for more than 40h. I tried to switch the phone of and back on again, but still 1% left and red led blinking (on some devices it makes it measure the value of the second cell, I guess, and brings it back to about 90%. Don't ask me why... It happens on my Dell Streak 5). I hadn't had this with my Xperia X10, where the energy left of my extended battery was accurate.
Final edit: worked for a good 48 hours. I must add that I put my phone during night time in Airplane mode (about 16 hours, but with some wifi surfing).
Sent from my Milestone using XDA App

Nice one.
Sent from my HTC EVO 3D X515m using XDA App

which charger do u use for charging the new battery through ur device's standardnusb port?

I charged it first with the external charger, as I think it's the best way to be sure that the whole battery is thouroughly and fully charged. But since first charge I also recharged it through the device's microusb port, which seems to work fine.
Since my first post, I also recieved my second extended battery:
www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=190572457987&ssPageName=ADME:L:OC:CH:1123
It looks almost the same as the first one, except the font used on the sticker is smaller and the price is cheaper.
I'm testing its power time right now, expecting it to be close to the one of its siebling.
I had also ordered a standard sized 1870 mAh battery from here:
www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=150585920125&ssPageName=ADME:L:OC:CH:1123
Problem with this one is it doesn't show battery status on the phone, as the mAh level can't be determinated by the phone. Will check with the seller what can be done (problem only with my battery?)
I saw another standard 1800 mAh battery for sale ($ 10.-), maybe will give it a try, seller seems more serious.
Sent from my Milestone using XDA App

Some updates about my second extended battery: I now have had a full discharging/charging cycle (in the phone itself) and it seems that the battery is now calibrated. My updated "Battery Monitor Widget" shows me now 2885 mAh for the full capacity and the phone gives apparently the right power status. Real life use time seems the same as my first extended battery, about 48 hours.
Sent from my Milestone using XDA App

Vuche said:
Some updates about my second extended battery: I now have had a full discharging/charging cycle (in the phone itself) and it seems that the battery is now calibrated. My updated "Battery Monitor Widget" shows me now 2885 mAh for the full capacity and the phone gives apparently the right power status. Real life use time seems the same as my first extended battery, about 48 hours.
Sent from my Milestone using XDA App
Click to expand...
Click to collapse
How can you even put your Milestone in your pocket?? The battery door looks HUGE

Right now I'm using this battery:
http://www.ebay.co.uk/itm/ws/eBayISAPI.dll?ViewItem&item=130579480018&ssPageName=ADME:L:OC:GB:1123
it has cca 80% of the original battery capacity, however it is much better then the other chinese battery I've owned in milestone, (I think) it supports the 1% mod, and it did cost me $1.89 delivered to my place.
I always take the old original battery and the dying chinese battery in my bag in case this new dies. I will get probably the same power-on hours count as with this extended battery yet with smaller package.

I just order one like this... thank's for the review

got 3500
just get AFTER over 2 month waiting me battery, what suppose to be 3500mAh . charging it , will post updates. bw. fone looks FAT now, geeky but fat. and fits into motorola a925i pouch no probs

not exploded yet?

kremx said:
just get AFTER over 2 month waiting me battery, what suppose to be 3500mAh . charging it , will post updates. bw. fone looks FAT now, geeky but fat. and fits into motorola a925i pouch no probs
Click to expand...
Click to collapse
Yes, please do post some updates and reviews.
I am only aware of 3300mAh [HLI-A855XL] by Mugen for Motorola Milestone which have good reviews.

it works fine