AGM battery for 990 Adv?

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by scottrnelson, Nov 30, 2011.

  1. _cy_

    _cy_ Long timer

    Joined:
    Sep 25, 2011
    Oddometer:
    6,504
    Location:
    Tulsa, Oklahoma
    for most folks AGM is definitely the way to go. unless saving weight is more important than saving $$$.

    doesn't KTM stand for "keep throwing money"? :lol3
    just kidding .. but KTM crowd does buy it's fair share of farkles. :deal

    unfortunately one cannot always go by LiFePO4 mfg listings for KTM. Placing a Shorai LFX18 in a 990Adv that routinely gets taken on trips a hundred miles from support in cold conditions is a receipt for failure.

    if you had installed a correct size LiFePO4 things would have turned out differently. due to battery tray size limitations EarthX ETX24 or ETX36 (winter duties) fits 990Adv nicely.
    #21
  2. rossguzzi

    rossguzzi 990 Adv.

    Joined:
    Oct 21, 2012
    Oddometer:
    1,559
    Location:
    Bottom left hand side of OZ
    Can anyone give me the diamentions of the stock battery for the 990 ?

    I have the Shorai and am thinking of going Decca or Odyssey. Need to know physical size.
    Cheers.
    #22
  3. 666

    666 Agnostic and Orange

    Joined:
    Feb 23, 2005
    Oddometer:
    1,327
    Location:
    San Francisco, CA
    My stock battery lasted 6 years. Last year I replaced it with true gel Bike Master. It's already dead, less than one year. Warranty is 2 years, but I dont even feel like wasting time on it. Battery was fine one day ago, low temperature was only 55F.
    #23
  4. Jody H

    Jody H Been here awhile

    Joined:
    Mar 24, 2008
    Oddometer:
    402
    Location:
    New Mexico
    My stock battery lasted about 3 years.
    The Batteries+ AGM lasted about 3 years.
    I needed a battery bad so I just purchased a Interstate AGM yesterday for $120. We'll see how it does.
    #24
  5. _cy_

    _cy_ Long timer

    Joined:
    Sep 25, 2011
    Oddometer:
    6,504
    Location:
    Tulsa, Oklahoma
    go with 14AH Deka or Odyssey for AGM .. then check your charging system voltage output at 3k rpm.

    also check for parasitic drain when bike is shut off. how often has bike failed to start after sitting?
    #25
  6. 666

    666 Agnostic and Orange

    Joined:
    Feb 23, 2005
    Oddometer:
    1,327
    Location:
    San Francisco, CA
    First time it failed to start with this battery. And it was only 2 days. Battery recharged, will see how quickly voltage drops.
    #26
  7. _cy_

    _cy_ Long timer

    Joined:
    Sep 25, 2011
    Oddometer:
    6,504
    Location:
    Tulsa, Oklahoma
    that's not enough info to tell much of anything.

    to see if your current AGM will recover .. charge to full with a regular PB charger, not a tender.

    allow to rest overnight .. resting voltage 12.6v to 12.8v indicates full charge. followed by starting your bike for a load test.

    if say your battery is 12.8v and starts your bike strong.. then odds are your AGM is fine. don't automatically assume your battery is bad until you do above test.
    #27
  8. 5 speed

    5 speed Been here awhile

    Joined:
    Sep 12, 2006
    Oddometer:
    991
    Location:
    Orlando Florida
    sorry to chime in on this old thread but better than starting yet another one. I have been reviewing old battery posts because I let myself come very close to being stranded. Ran my battery down using an electric pump (ok sure next time I will make sure its running) airing up my tire. I go riding alot by myself and in some remote areas (as much as 20 mile walk).

    Not having a kickstarter sucks (like on my 530) so question, what kind of back up battery system is there? Can you carry some kind of power pack that you can hook to your charging cable too? You know this situation would have required hooking to a powersource for maybe 20 minutes? it would have started. Just curious as we have established that there is not a great alternative to the stock battery (not really).
    #28
  9. scottrnelson

    scottrnelson Team Orange

    Joined:
    Apr 3, 2006
    Oddometer:
    1,544
    Location:
    Pleasanton, CA
    Short of carrying an entire extra fully charged battery around with you, I don't see a good alternative. Anything with additional power when the main battery is dead is extra weight you're hauling around for nothing.

    Interestingly (since I started this thread), I went with the lower cost option at the local motorcycle shop and it lasted less than two years. I've already replaced it. I'm just trying to be better with keeping the battery topped up this time around.

    The battery in my Honda has been solid for five years plus however long the previous owner had it. I can't tell if some bikes are "kinder" to their batteries or if it is the battery itself. I went more than 6 years on a battery in a Ducati Monster, but the Ducati ST2 that I replaced it with only managed about two years on each battery.

    Oh, and it's Absorbed Glass Matrix, Duh!
    #29
  10. Bgunn

    Bgunn Mucha distancia

    Joined:
    Apr 7, 2004
    Oddometer:
    1,550
    Location:
    Rockford Wa
    Picked up a $40 eBay AGM battery 2.5 years ago and all is well. Tried different types. Normally change it out every 3 years.
    #30
  11. garandman

    garandman Wandering Minstrel

    Joined:
    Feb 5, 2007
    Oddometer:
    6,766
    Location:
    Dorchester, MA / Goshen, NH
    I put an EarthX in my Tiger 1050 a few weeks ago. The 1050 is a notoriously slow cranking bike and because the LiFeP04 has higher cranking voltage, it cranks a lot faster. Coldest start is in the 40's but I should be able to do some cold starts in the 30's this week.

    Two year full warranty. Shorai, for example, has a "3 year" warranty but it is only full replacement for the first six months.
    #31
  12. Dune

    Dune Been here awhile

    Joined:
    Mar 27, 2008
    Oddometer:
    430
    Location:
    Ontario Canada
    #32
  13. garandman

    garandman Wandering Minstrel

    Joined:
    Feb 5, 2007
    Oddometer:
    6,766
    Location:
    Dorchester, MA / Goshen, NH
    You can always try Mr. Battery's thread here. He routinely reposts the same info and seems to have the idea that it is the go-to thread on the Interwebz for LFP battery info, but there are a few good points there. Joel Wiseman's posts are worth reading.

    I quickly realized that since all the LFP batteries are small and light, if you just she'll out the $$$ it all probably work. I bought an ETX24 which has an "EqAh" rating of 18Ah, even though the standard Battery on a Tiger is 12 Ah. Because I don't think those real-world equivalencies are reliable yet.
    #33
  14. 5 speed

    5 speed Been here awhile

    Joined:
    Sep 12, 2006
    Oddometer:
    991
    Location:
    Orlando Florida
    Batteries here in Florida don't last 5 years. I pretty much know on the bikes its 3 with a tender on it and you best start looking at your car battery as well.
    #34