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  1. 3DPiper's Avatar
    Do any of the extended batteries actually work?

    samsung focus extended battery | eBay

    Would love to get more battery life..

    I would get two days on a charge before Mango, but after updating I can't even get one day.. No changes to use, no background tasks.. No idea why my battery life sucks..
    11-25-2011 11:31 PM
  2. palandri's Avatar
    They work, but you need to make sure you get a reliable brand. I saw photos over at Treo Central of no-name extended life batteries that leaked and destroyed phones. I would be afraid to try any of those no-name extended life batteries over at eBay.

    I used a 3500mah Seidio extended life battery in my Palm Treo Pro and it worked fine and gave me two+ days of heavy usage and lasted a year. It was well worth the price. They sell Seidio batteries here in the WP Central Store.
    11-26-2011 07:30 AM
  3. jimski's Avatar
    Unless its an OEM extended battery, proceed with caution. If not an OEM, but is larger and requires a new battery door, you may not get the exact mAh advertised, but it will be better. Beware of non-OEM same size batteries that claim magical powers though. Returned two of these this past year. Not even as good as the OEM battery and started doing strange stuff with my phone during charges, requiring battery pulls and power cycling to get the phone back on

    Sent from my HTC Surround using Board Express
    11-26-2011 08:34 AM
  4. 3DPiper's Avatar
    Thanks guys,

    I ordered a 1850mah from ebay, it claims to be the same size so no new back door needed.. My current battery is a wee 1500mah..

    I'll let you know how it performs..!
    palandri likes this.
    11-26-2011 09:29 AM
  5. palandri's Avatar
    Thanks guys,

    I ordered a 1850mah from ebay, it claims to be the same size so no new back door needed.. My current battery is a wee 1500mah..

    I'll let you know how it performs..!
    Before you stick it in your phone, you may want to google the word, "Andida" to make sure there aren't any crazy issues (ie, my phone started smoking) with them.
    11-26-2011 09:37 AM
  6. xcodezerox's Avatar
    how to check the running programs or apps, and close them. Please let me know?
    11-28-2011 08:08 AM
  7. ncxcstud's Avatar
    if you hold the back button, it'll bring up the last 5 programs/panes you were using. You can check background programs through the settings hub on your phone.
    11-29-2011 09:48 AM
  8. selfcreation's Avatar
    how to check the running programs or apps, and close them. Please let me know?

    Wp doesn’t deal with that , the PROGRAME you see in your *MULTY TASK* section doesn’t use any memory or battery life ( like it does on Iphone and Android and Webos)

    your app doesn’t actually keep running in the background. the WP os actually just SAVES the thing you did or where doing on the app and closses it . MULTY task is just a big word for Quick resume.
    so closing the apps = not needed. and does absolutely nothing.

    if you’re looking for ways to MAXIMSIE your battery check out the link in my signature i have a WHOLE section on battery including Microsoft Official Tricks to reducing battery usage.
    sumorabbit likes this.
    11-29-2011 10:05 AM
  9. el_mono70's Avatar
    With light use I could also get two days from my Focus. Even with the Mango update I can still pull of two days. The problem for me occurs if I update the Now app. I have tried every version/update to this app, even after doing a hard reset to my phone. The new and improved version simply kills my battery. Overnight I will loose 30 to 60 percent of my charge. I tried contacting Samsung support and was told that all of their software is thoroughly tested. Maybe it's just my phone? Just a thought...
    el mono
    11-30-2011 01:03 AM
  10. bigkevbosky's Avatar
    I read on another site that you could use the 1800 mah OEM Samsung battery from the Epic Touch 4G on the Focus with the stock cover and it would fit fine. So I ordered one from Amazon for like 20 bucks (more expensive than generic ones, but I wanted authentic Samsung OEM) and it does work. I've been getting much better battery life with the 1800 mah than the 1500 mah battery that comes standard. I'd say maybe 25% to 30% more life.
    12-09-2011 10:14 AM
  11. sumorabbit's Avatar
    I'm currently using the battery/back cover advertised on that ebay page second from the top (the red white and yellow one). It's rated (written on the battery) at 3.7v, 3600mAh. I'm happy with it so far. For being ludicrously cheap (red flag in my book), it gives me about 1.75x my OEM batteries run time. Clicking on "battery saver" shows the charge percentage/estimated run time. With my OEM battery fully charged, it said approx 8hrs when I set my screen to low, closed my apps (although a few posts above this it is mentioned that back-button tapping really doesn't help battery life, which I didn't know, and thus I thanked the member)...etc. And with the new (bulky, but oddly comfortable in the hand) battery, it reads 14 hours.

    Now I don't expect anyone to put stock in my numbers above as literal values, since those are such arbitrary values because of how easily that estimation can change from use. But regardless of the values, they are proportional I've noticed. Whether it's 8 and 14, or if I'm using it a lot and the charges last 4 and 8-10, the bigger battery always lasts close to, sometimes more than, double the original.

    The big battery adds a little bit of weight, but nothing extreme. I mentioned above it felt better in the hand, and I'm very serious about that sentiment. The original back-plate and battery makes my phone (now that I've tried the big battery) feel too thin, and it doesn't offer a way to hold the phone securely without curling my fingers over the sides, resulting in occasional button mishaps, and when the phone is warm from extensive use, my fingers sometimes activate the screen sensor which is frustrating when it thinks I meant to tap a link on a web page or something to that effect. With the larger back on the phone, it shifts the phone's center of gravity down, and the rectangular outset for the battery fits in a palm nicely. With the phone being heavier, lower, it helps it's balance and in my opinion, it seats itself very comfortably/naturally into my hand.

    So after that glowing review, I'll put a rather necessary disclaimer. I just got this battery last week, so it may destroy my phone or have some sort of serious issue that I'm not yet aware of, or simply hasn't yet happened. But so far, so good. If anyone knows the specs or any actual test results or data about this battery, please post them up for reference. Also, if my phone is a time bomb and I somehow missed the review warning, I'd appreciate a heads up. hahaha.

    EDIT: That listing isn't the exact battery I have. Upon reading the actual ebay page for the battery (as opposed to seeing the picture and assuming) I see that it's only a 3000mAh, and it ships out of Hong Kong. Mine was purchased on Amazon, it's marked as 3600mAh on the battery itself, and it shipped from Jacksonville FL. I know the battery is chinese, not...Floridian, but I prefer ordering even the cheapest off-brand crap from within the country to avoid the unpredictable mess associated with internationally shipping something from China. That being said, it's visually identical to the battery listed there on ebay, which leads me to believe it's the same brand. Whatever brand that may be.....gotta love the Chinese for that marketing style.
    Last edited by sumorabbit; 12-10-2011 at 05:56 PM.
    12-10-2011 05:39 PM