The correct way to charge?Support


  1. Katieg2006

    Katieg2006 Member

    Hello, so im collecting my new Asus today after my other new one not charging. I want to make sure i dod everything right on opening.

    If i connect the tablet to the docking station and then charge, will that charge both the tablet and the docking station? Or do i need to charge both seperately 8 hours each?

    I would really appreciate some advice on this, i just want to play with my new toy!!!!!!!!!!!!!!!!!!! lol :)

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  2. eddiewawa

    eddiewawa Well-Known Member

    apparently the BEST way to condition the battery and ensure it's life is to charge each seperately.

    personally, im just lazy, all I do is drain the dock to 3%, which then uses the battery off the main tablet, and drain that, and charge both at the same time
  3. clgwli

    clgwli Well-Known Member

    That's exactly what I do too. Though the first time for each of them I did charge them seperately for 8 hours min each.
  4. mihaelb

    mihaelb Well-Known Member

    I spoke to Asus support, and they said that this battery has no memory. They said to just charge as often as you can, and keep it fully-charged as often as you can. Further reading on these type of batteries confirmed it--longer charge cycles are actually harder on these than shorter ones.

    Also, just to add to this, keeping the tablet docked, even when fully-charged, will drain the dock's battery within 3-4 days (this is from experience, not from support).
    NineToTheSky likes this.
  5. bfksc

    bfksc Well-Known Member

    I don't know why they still print that "8 hours min" crap in manuals these days. Li-Ion batteries do not have memory effect issues, nor do they benefit from longer charge times for the first charge - their internal microchips prevent overcharging so charging till 100% is the same as charging it for 8 hours and will not add any extra charge to the battery. Li-Ion batteries also work best when topped up regularly rather than draining them completely, as posted above. There is no need to "condition" or cycle Li-Ion batteries. Just use them.

    As for charging them separately, it's simply not necessary. Just connect the tablet to the dock and plug in the dock for charging. It will charge both batteries to 100%. Once fully charged, the dock battery is used first to power the tablet, that way the tablet will always have a full charge (between 96-100%) when you remove it from the dock. The battery is considered to be "full" when it's at 96% or higher. Once the battery drops to 95% or less, it will top up again to 100%.

    To see battery levels of both units, download the "dual battery widget" by Artiom Chilaru from the Market. It was made for the TF and works great. It's also a resizeable widget so you can adjust it as needed. You can make it larger, smaller, one battery or both, percent levels, etc.
    :D
  6. bfksc

    bfksc Well-Known Member

    That's correct, the dock battery is always used first to power the tablet, that way the tablet always has a full charge when removed from the dock. That's a great design idea and I applaud ASUS for doing it this way!
    :D
  7. fldude99

    fldude99 Well-Known Member

    3-4 days? 3-4 hours is more like it.
  8. eddiewawa

    eddiewawa Well-Known Member

    lol what on earth are you doing to it? :p from personal experience I drain the dock in around 2-3 days, thats with at least 2 hours of dungeon defenders, 2 hour browsing and emails, a few youtube vids each day.
  9. bfksc

    bfksc Well-Known Member

    I think he means with continuous usage...I've never used it continuously for longer than about 3 hours (first day with it), and it went down to about 60% at that time from a full charge. Since then, I leave it on all the time but in standby when not used, and I top it up every few days. I pull the TF out of the dock about 40% of the time such as during lunch at work.
  10. AutobahnSHO

    AutobahnSHO Well-Known Member

    Look at the serial# on your keyboard. If it starts with B50 or B60 there could be a bad chip on it which doesn't shutoff the charging when it's supposed to. B70 is newer and ok. There's a thread on XDA developers about it- you can RMA then ship the keyboard in and have it repaired so it drains much much slower.

    I have a B50 but can't live without my keyboard the 3-4 weeks it would take to get it through overseas mail..
  11. Dr_bgc123

    Dr_bgc123 New Member

    This will help everyone manage their batteries better. :D

  12. fldude99

    fldude99 Well-Known Member

    Try docking the tablet when its at about 30% and you'll see fully charged dock deplete its charge in a couple of hours. I seldom charge the tab separately
  13. bfksc

    bfksc Well-Known Member

    You do realize the dock battery has a lower capacity than the tablet? So even if the dock is fully charged, it can only transfer about 60% or so into the tablet.
  14. fldude99

    fldude99 Well-Known Member

    Yea I've noticed that, but it's no big deal. When the dock gets to 3% the tab is pretty close to fully charged. I'll usually put the dock on charge overnight then when the tab is docked the next day it pushes the tab to 100% and keeps it there for a pretty good amount of time
  15. sid52

    sid52 Active Member

    To improve battery life when on standby, set wifi to only turn on when the screen is on.

    Sid
  16. fldude99

    fldude99 Well-Known Member

    Will it receive email if it's set up that way? Anyway, this thing has such awesome battery life I see no need to conserve
  17. sid52

    sid52 Active Member

    No it won't, but as soon as the screen is turned on all updates and downloads occur within a few seconds. I find that both batteries are discharged within a couple of days if it is hunting for a signal when left in a drawer overnight. Emails will arrive on my phone anyway.
  18. bfksc

    bfksc Well-Known Member

    I have a B60 tablet and B60 dock without the battery drain issue, but once I enabled the wifi sleep with the screen off, battery life has increased dramatically (in standby/sleep mode). The dock battery used to drop about 15 percent in 8 hours, but now it only drops a few percent over 8 hours. Big difference when in standby! And like you said, as soon as I open the tablet it connects and downloads my email immediately. Cool.
    :D
  19. Katieg2006

    Katieg2006 Member

    Thanks everyone. I charge both seperately for a few hours and that lasted a few days... happy bunny! xx
  20. fldude99

    fldude99 Well-Known Member


    So if you're doing something like streaming music wouldn't you lose the steam when the screen turns off? Seems like a little big of a hassle for a bit longer battery life
  21. sid52

    sid52 Active Member

    I agree if that's the case, although I don't stream music. It's really what works best for each user.
  22. madixxx

    madixxx Active Member



    hi,
    i have a question ( never posted a post in my life though -hope this will work)

    should i after charging (take your adv and charge both for the first time together not separately)- always use the pad without keeping it plugged? i am so use to plugging my laptop ( ibm) when i work on it as its in its dock which is always connected to powert.
    i understand that is not a good idea with the pad???


    grateful for a reply!
    m

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