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  1. #1
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    Default LiFePO4 replacement battery

    My Yuasa is dead even though it was on a charger/maintainer over the winter. I'd like to try the LithiumIron one recommended by Hypurone on a different thread....

    I am a HUGE fan of LiFePo batteries!... I yanked my OE unit after a couple of years when it started having inconsistent starting (ALWAYS on a Battery Tender) and replaced it with a Shorai LFX36 unit...The WEIGHT savings is HUGE! 4.55lbs (less if you don't get the 36 series like I did) vs the OE at 14lbs(IIRC)...

    But, that battery has very different dimensions than the OEM Yuasa. Can someone verify this is the correct replacement, or suggest another LiFePO battery that is a direct replacement. Thanks.
    Last edited by Peter Aawen; 06-07-2022 at 06:16 PM. Reason: Fixed quote display
    2014 RTL Platinum


  2. #2
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    I found this earlier thread which answers my questions. Thanks.

    https://www.spyderlovers.com/forums/...=1#post1610997
    2014 RTL Platinum


  3. #3
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    The lithium batteries are much smaller and you need to add the foam spacers that come with the battery for fitment. The lithium battery I have has an internal computer and can be charged using an ordinary battery tender. They do suck in the cold weather and your bike may not start until you warm up the battery. That is the only negative I have found. Thought about adding a second one since there seems to be room now for 2 of them.
    2021 Sea to Sky RT , Highland green

  4. #4
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    This is the Shorai battery I got to replace my dead Yuasa. The specs are quite good. It is smaller than the original and Shorai provides foam pads to make up for the difference if needed. Lithium batteries have specific requirements for minimum and maximum charging voltage and I've verified the Spyder's system easily meets those requirements.

    I've also been able to determine that battery maintainers such as the Battery Tender Junior and my onboard NOCO Genius 2D are safe to use with the Shorai because they do not have a high-voltage desulfation mode; this is true for the Shorai because of its Battery Maintenance System (BMS); it may not be true for other brands of lithium.

    Also, the Shorai is specifically designed for powersports applications and provides a greater cranking amps than the Yuasa (many lithium batteries are made for deep-cycle applications such as RV and are not suitable for powersports applications)

    20220609_180203.jpg

    20220609_180304.jpg
    Last edited by UtahPete; 08-08-2022 at 11:38 AM.
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  5. #5
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    Default The Spyder battery hold-down clamp

    As anyone who has replaced a Spyder RT battery can attest, fiddling around with the hold-down clamp is one of the greatest challenges when re-installing the battery. Also, the clamp is designed for the Yuasa OEM battery, which has a different configuration than the Shorai battery. As BikerJoel pointed out in his earlier post, the clamp needs to be modified somewhat for the lithium battery. I had to trim a little off the tangs of the hold-down plate to make it fit. The good news is that the smaller lithium battery provides more room in the tight battery compartment for finagling the clamp and the cables.

    20220609_180133.jpg This is the bracket on the Yuasa

    20220609_180108.jpg This is the bracket on the Shorai, before modifying the tangs

    20220609_175950.jpg Yuasa

    20220609_175919.jpg Shorai

    20220609_161855.jpg Plasti-dip

    20220609_145236.jpg Showing the slots at the top rear of compartment where the bracket fits in

    20220609_175331.jpg Showing how I held up the bracket temporarily with tie-wire before inserting battery
    Last edited by UtahPete; 06-10-2022 at 01:05 PM.
    2014 RTL Platinum


  6. #6
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    I was a little concerned about protecting the positive battery post so came up with the idea of slipping a modified 3/4" pvc cap over it. I had to cut holes for the front of the post and where the hold-down plate 'tang' came down, and my SAE cord. I think it worked out pretty well. I also, as an added precaution, used Plasti-dip to coat the terminal post and the tang on the hold-down bracket.

    20220609_175708.jpg

    20220609_175831.jpg

    20220609_175744.jpg

    20220609_175548.jpg

    20220609_175617.jpg

    20220609_161855 (1).jpg Plasti-dip on bracket tangs

    20220609_161849.jpg Plasti-dip on terminal
    Last edited by UtahPete; 06-10-2022 at 01:08 PM.
    2014 RTL Platinum


  7. #7
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    Default Installing the new battery

    I used some wire ties to hold back the cables and hold up the hold-down plate while I put the new battery back into the compartment. This is much easier than before, if only because the light weight lithium battery can easily be grasped and maneuvered by one hand. The old SAE connector fits easily in the space, for when I might want to power some accessory directly from the battery, or use a different battery maintainer.

    20220609_175452.jpg

    20220609_175427.jpg

    20220609_174502.jpg
    Last edited by UtahPete; 06-10-2022 at 12:36 PM.
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  8. #8
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    Any particular reason you went with the LFX36L3-BS12 and not the LFX24L3-BS12?

    Shorai seems to indicate the LFX36 is the recommended battery, but Motosport.com says the LFX24 is the direct replacement for the YTX24HL
    Based on numbering, measurements and CCA, it would seem like the LFX24 is the direct replacement.

    Current Spyder:
    "Can-Am Red"/Black 2015 Spyder F3-S with Heated Handle Grips, Gauge Spoiler, Fog Lights, 12V port, Akrapovic Exhaust, Driver and Passenger Backrests

    Previous Spyder:
    "Can-Am Red"/Black 2012 Spyder RS-S with Can-Am Comfort Seat, Comfort Grips, Rigid Saddle Bags, HID lights, Fog Lghts, 12V Accessory port, Trunk Liner, Hindle exhaust, Flash2Pass, SpyderPops BumpSkid, Side Grilles, Missing Air Dam, Air Management System, BajaRon Anti-Sway Bar

  9. #9
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    Quote Originally Posted by dguisinger View Post
    Any particular reason you went with the LFX36L3-BS12 and not the LFX24L3-BS12?

    Shorai seems to indicate the LFX36 is the recommended battery, but Motosport.com says the LFX24 is the direct replacement for the YTX24HL
    Based on numbering, measurements and CCA, it would seem like the LFX24 is the direct replacement.
    I like the greater power storage. They're both pretty small.
    2014 RTL Platinum


  10. #10
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    Quote Originally Posted by UtahPete View Post
    As anyone who has replaced a Spyder RT battery can attest, fiddling around with the hold-down clamp is one of the greatest challenges when re-installing the battery. Also, the clamp is designed for the Yuasa OEM battery, which has a different configuration than the Shorai battery. As BikerJoel pointed out in his earlier post, the clamp needs to be modified somewhat for the lithium battery. I had to trim a little off the tangs of the hold-down plate to make it fit. The good news is that the smaller lithium battery provides more room in the tight battery compartment for finagling the clamp and the cables.

    20220609_180133.jpg This is the bracket on the Yuasa

    20220609_180108.jpg This is the bracket on the Shorai, before modifying the tangs

    20220609_175950.jpg Yuasa

    20220609_175919.jpg Shorai

    20220609_161855.jpg Plasti-dip

    20220609_145236.jpg Showing the slots at the top rear of compartment where the bracket fits in

    20220609_175331.jpg Showing how I held up the bracket temporarily with tie-wire before inserting battery
    The last 2 pics may be helpful to anyone trying to replace a battery, regardless of type. The hold-down bracket is a tricky bugger to get back unless you have some idea of where the tang slots are located.
    2014 RTL Platinum


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