Oz / Kiwi Suzuki DR650 Adv Riders Sign in Here please

Discussion in 'Australia' started by davorallyfan, Feb 20, 2007.

  1. TaZ9

    TaZ9 Been here awhile

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    Had an Earth-X in my DRZ400...1 month after the warrany expired, it left me stranded in the middle of nowhere Utah with a dead cell. The Yuasa in my DR650 is still going strong after 7 years!! No more Li-ion batteries for me!

    Ride safe,

    TaZ9
    ER70S-2 likes this.
  2. motolab

    motolab Long timer

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    I'm pretty sure Earth-X batteries are LiFePO₄ rather than Li-ion.

    Regards,

    Derek
  3. MarkH67

    MarkH67 Been here awhile

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    I'm pretty sure that LiFePO₄ ARE Li-ion, just not the same chemical compound as LiCo or LiMn cells.
    Actually, I thought that all the Li-ion batteries used for lead-acid replacements were LiFePO₄ cells, due to the closeness of voltage between 4-cell LiFePO₄ batteries and 6-cell lead-acid batteries.

    The problem with LiCo or Li-Poly cells is that they have a theoretical maximum healthy voltage of 4.2V per cell which means that a 3-cell battery will have its lifespan considerably shortened if its voltage is allowed to exceed 12.6V - this would be very bad for a vehicle starter battery which can be over 14V under charge, like the entire time the vehicle is running. The nominal 3.6V-3.7V per cell would mean that the voltage on a 3-cell battery would be 10.8V-11.1V which is rather on the low side for a vehicle starter battery. To go to a 4-cell battery would necessitate some sort of voltage dropping circuit which would be problematic for delivering the high amperage needed for starting a vehicle.

    The advantage of LiFePO₄ cells is that in a 4-cell battery you can happily push them up to 14.4V with no issue. The operating voltage for a 4-cell battery would be 12.8V-13.2V with a maximum voltage of 14.4V, this works much better than other Li-ion batteries for compatibility with vehicles' electrical systems.
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  4. motolab

    motolab Long timer

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    Aha, so LiFePO₄ is one of several types of Li-ion. I have seen several articles that make a distinction between LiFePO₄ and Li-ion. Perhaps they meant to/should have more properly made a distinction between LiFePO₄ and LiCoO₂.

    Regards,

    Derek
  5. nzrian

    nzrian renegade master

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    i have been running this in my DR for about 4 years now.

    never charged it, and never had any problems.

    [​IMG]Untitled by rian munro, on Flickr
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  6. Big Willy

    Big Willy Gen. Italia

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    that's bleeding fantastic considering where you live (nice neck of the woods too)
  7. nzrian

    nzrian renegade master

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    thanks, i actually brought that battery when i was living in Brisbane.:1drink
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  8. Woody2627

    Woody2627 Grey Wobbler

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    Seems to me that Lithium batteries are a good thing. But sometimes not. I think I'll wait a bit longer.
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  9. robmoto

    robmoto Long timer

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    I run a Anti Gravity brand in a DR 800 and have for many years and use a C Tech charger I think it is a X5 specially made for these batteries, don't let them get below 10.5 volts or they won,t recharge but as someone else said can charge up 14.4 volts saves a lot of weight .
  10. leighwgold

    leighwgold Ph.D. of B.S.

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    It's the "But sometimes not." that has made my mind up. Perhaps I should lose a couple of kgs off me fat arse rather than worry about the battery.
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  11. Big Willy

    Big Willy Gen. Italia

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    I like the idea of carrying one as a spare if you're doing a trip. They weigh nothing and may get you out of trouble...or maybe have one in the bike and one in the luggage :thumb
  12. Turumarth

    Turumarth Adventurer

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    Fitted the b & b clutch and ignition guard yesterday. Despite by best efforts there's still a few gaps where water/dirt/etc could get in between the guard and the engine.

    Is it worth trying to fill in the gaps? I've got no idea what getting crud stuck in there would do (if anything).
  13. sh4kes

    sh4kes Been here awhile

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    I presume you used some kind of silicon (e.g. red RTV) for sticking it on? I had mine fall off about 10,000km into my ride....after that I scuffed the engine casings and inside of the protection plates with sandpaper, cleaned them down with wax and grease remover, then put a good helping of high temp RTV on both sides before taping them on real tight to dry. Haven't had a problem since.

    If you've installed them correctly the gap shouldnt be very big, and since the whole inside of the protection plate should have a good covering of high temp RTV the gaps should only be at the edges. If so, you've installed them correctly and there's no issues with dirt / stones / water (in my experience) even with the small gap at the edge. (Water would evaporate anyways)

    End of the day if you're really worried just run a bead of RTV around the gap - it'll look ugly though!
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  14. Turumarth

    Turumarth Adventurer

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    Cheers! Yeah I think I didn't lay it on thick enough. Didn't sit exactly flush and where it wasn't flush, the gap was wider than the silicone was thick. I reckon I'll just try and fill the bigger gaps, using a wooden skewer or something to push it into the gaps.
  15. BergDonk

    BergDonk Old Enough to Know Better

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    Use some grey RTV for a colour match.
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  16. schmik

    schmik Been here awhile

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    Bit late to give you this advice now but it's best to run a continuous bead all the way around the outside of the case savers before you stick it on.
    I used black RTV but grey would also work very well.

    Or rip them off and do it again. Nothing a bit of elbow grease can't fix.
  17. Turumarth

    Turumarth Adventurer

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    Yeah I'm starting to think that is the way to go. What's the best way to get them off do you reckon?
  18. schmik

    schmik Been here awhile

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    Hmmm.... for the time and effort maybe just a run a bead all the way around it and clean it up as best you can.
    Or even tape it first to reduce the cleaning effort.

    If you want to get it off try:
    Fishing line on two pieces of wood. You know like spies use to choke people. Best if you use two pieces of line twisted. Works like a saw.
    Pry bar? might bend it.

    No other ideas. Never done it before.
  19. BergDonk

    BergDonk Old Enough to Know Better

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    The only ones I pulled off came off after soaking in petrol in an old baking dish overnight. It loosens/softens the edge, then prise it a bit, and soak some more. Took a few days not to damage anything. If they come off easy, then they weren't on very good to start with.
  20. Turumarth

    Turumarth Adventurer

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    Cheers. Yeah that sounds like a pain...looks like I'll just be going round the edges!