Shorai battery for KTM990/LC8

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by cyborg, Jan 8, 2011.

  1. Hotspice

    Hotspice Satellites not acquired

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    Spot on with that. You can get the surge by pressing starter like MT did or (and what Shorai suggests) is turn the bike on with the headlight on for that same 10-15 seconds. Just enough to get the juices flowing.

    Their design changes for this next round will be reducing the impact temperature has on the battery which will mean less time and in colder temps than you now experience.

    Now we just need mid-april to roll around so we can get some reports back on the new version..
  2. FINNDIAN

    FINNDIAN Mine goes to 11

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    Not sure holding the start button without the motor cranking would be a good idea. High current would be flowing through the starter brushes and most likely shortening the life of your starter.

    I'll be doing some cold weather testing as soon as the snow melts off the roads.
  3. scorpion

    scorpion Two arm bandit

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    Got the magical wonder battery today, we'll see how it performs. . .:ddog couldnt be a any worse then the stock. Man, the thing is LIGHT.
    anyway, I used a little trick to get those pesky bolts lined up for the install. Used a bit of foam scrap as a shim, worked great.
    [​IMG]
    Bike fired up like a moFo
  4. Yascher

    Yascher Been here awhile

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    +1 if not burning the coils at some moment, on the other hand if there is enough current it will just start cranking........headlight seems like a better idea, it's even recommended for normal batteries on cars in winter
  5. MotoTex

    MotoTex Miles of Smiles

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    +1
  6. jamesbrown

    jamesbrown Lefty tighty.

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    I seem to have my battery in and out quite a lot for whatever reason so I put a headless bolt on each terminal, secured by a nut on each side of the terminal face and a final nut to secure all the connectors. Saves faffing. Need to do the same with the crash bars when I get a minute....
  7. Orangecicle

    Orangecicle On a "Quest"

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    Dang! Just when I have almost everything squared away on my bike, my battery dies, and nobody has Shorai stock anywhere.

    :waysad :cry :becca :baldy :bluduh :muutt
  8. jamesbrown

    jamesbrown Lefty tighty.

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  9. Orangecicle

    Orangecicle On a "Quest"

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  10. cyborg

    cyborg Potius Sero Quam Numquam

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    Added 2.4Ghz Wireless Spread Spectrum Battery Telemetry to my Shorai LiFePO4 battery, just because it can and I could. :D

    Less than 2oz of extra stuff, RC tech:

    [​IMG]


    Key off:

    [​IMG]

    Key on, bike not running, with HID's running:

    [​IMG]

    Works up to 1/2 mile away. Monitors each of the 4 cells in the battery, Amps 10mA up to 100A (150A burst), Ambient Air Temp -4 to 176F (-20 to +80C)
  11. KTM450SX

    KTM450SX Been here awhile

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    Haha thats cool!
  12. FINNDIAN

    FINNDIAN Mine goes to 11

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    installed mine under the seat. Cranks over like a bastage!:thumb
  13. jamesbrown

    jamesbrown Lefty tighty.

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    Dayum, you can check your battery from the campsite shitter. I've always wanted to do that :lol3 That's awesome.
  14. summitdog

    summitdog It's an Azawakh

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    I ordered a Shorai battery and the distributor told me that the battery was on back order. Anyone else experiencing delays?

    Scotty
  15. cpmodem

    cpmodem Orange Caveman

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    Butt, is that 70ma of draw with the key off? Whatcha got goin' on? Blender makin' pina coladas?:1drink
  16. jamesbrown

    jamesbrown Lefty tighty.

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    That's all the sensors :lol3:kbasa
  17. cpmodem

    cpmodem Orange Caveman

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    :rofl:rofl:rofl:rofl
  18. cpmodem

    cpmodem Orange Caveman

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    Very cool. I'll bet you have everything on hand to make it remote start with just a little more effort.:evil
  19. cyborg

    cyborg Potius Sero Quam Numquam

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    Oopsie, reposting, nuked by accident. Added a bit.

    The sense package is not monitored for it's own draw, but it draws about 8 mA at the 4 samples/sec xmit rate.

    This Quanum system is cheap, so not quite NASA grade accuracy. On the low end due to whatever weirdness it can indicate anywhere from 0.0 to 0.2 since the AMP sensor is so wide-range, and doesn't always reset to 0.0 from negative current draw, maybe it doesn't like that. The AMP sensor is uni-directional on this sensor so once the bike starts, the AMP reading drop to zero because the alternator is backfeeding current. RC applications are one-way, just drawing.

    The real indicator is the battery voltages, which are spot-on. If they aren't dropping much, I don't worry about it. I have different AMP meters for the really small draws, for troubleshooting. The inexpensive AMP sensor was bundled with the Temp sensor, so I hooked it up, what the heck. My 990S indicates about 108Amps while cranking cold, about 80-90 amps when warm. It can peak up to almost 135Amps on first crank, as captured by a recording AMP meter:

    [​IMG]

    The gadgets used were this and this and this if you are so inclined.

    and these to mod to connect to the 4S balance port

    :beer
  20. cyborg

    cyborg Potius Sero Quam Numquam

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    Nah, I could... but no.

    Since these LFX batts are so new, and have the ability to monitor individual cells, the geek engineer in me just had to know. I found something way cheaper for that than trying to DIY from scratch.... and I can watch it from my desk at home or work.