Super small battery for my XR650R
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Thread: Super small battery for my XR650R

  1. #1
    Fuh-coffee we will go Array carbonfibrerocket's Avatar
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    Super small battery for my XR650R

    I'm having an issue with my XR650R where the little lead acid battery that came with the bike doesn't have enough juice to consistently pull in the relay for the turn signals, even after a full charge. The HID headlight has no problem with the battery but the signal lights do, it's the weirdest thing (perhaps there is also a bad contact issue with the neutral I'm not sure but I don't think so because I can watch them fade rather than flicker)

    The existing battery is a lead acid 1400 mAh made by PBS. It is 3.75" L*by 1 & 5/8" W by2" H. I'm having trouble finding a battery that will do the job. Even Edmonds battery doesn't have anything that small. Ideas? Thks....
    Quote Originally Posted by bottomfeeder View Post
    Big shitty balls of shit, that's a bastard coated bastard with bastard filling

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  3. #2
    Don't be stupid. Array Sikorsky's Avatar
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    On my "street legal" XR650R I used some small 12v I picked up from a battery shop, about the size of a pack of smokes. Make sure your relay is a light duty type and there shouldn't be an issue.
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  4. #3
    Moderator Array CHIA's Avatar
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    Did you check Walmart @ Lougheed Mall, they have some small motorcycle batteries.
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  5. #4
    Chronic Array PRSmechanic's Avatar
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    All neutral lights fade a bit at idle. Some more noticeable than others.
    Try a new flasher relay from a motorcycle shop. Car relays require higher current to switch over, and don't work well on bikes.
    If your signals are small aftermarket ones, they also may not draw enough current, even for a motorcycle relay.
    When your bike is above 1,800 RPM, the battery is usually out of the equasion.
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  6. #5
    Registered User Array Schaden's Avatar
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    At that size, it can't be a motorcycle battery. Sound to me it is more like a Sealed Lead Acid (SLA) battery. Similar to what you might have in your home alarm or UPS unit. The closest one I can find would be a 12V 1.3ah.


    Does that look like it?

  7. #6
    for the crumpet I suppose Array
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    Lithium Iron lightweight, IMHO. Light and small. I think around 2X2X4. PM me if you want one, I make them.

  8. #7
    Don't be stupid. Array Sikorsky's Avatar
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    That's what I had in mine. It's not required for anything else other than to provide a bit of power at idle to operate the needed electrical loads.
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  9. #8
    Chronic Array PRSmechanic's Avatar
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    I reread the post, and realised I missed something!
    His signals don't work at red lights.
    Up here in the hills, I hardly ever sit at a red light, so the situation was confusing ;-)
    Still, I have a WR450 with a Baja kit, stock type dry cell, and no issues.
    I'm just surprised your battery voltage would drop so low at idle with a fully charged battery.
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  10. #9
    Registered User Array NSRDR's Avatar
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    You need this:

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  11. #10
    Don't be stupid. Array Sikorsky's Avatar
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    See, I told you. Is not necessary.
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  12. #11
    Fuh-coffee we will go Array carbonfibrerocket's Avatar
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    So after trying a couple things this spring, a Ballistic EVO2 lithium iron battery that turned out to be garbage when it fell below 60% charge, gone.

    I put a 4 mAh lead acid back in, but mounted it on the rear fender, no room anywhere else. This helped out with the sinal light issue but then I got thinking, hey why do I run the HID if I don't need it? So I used LED's as daytime running lights and only turn on the HID when needed, which I haven't yet.

    Much easier on the stator and loads of capacity with the larger battery.

    Quote Originally Posted by bottomfeeder View Post
    Big shitty balls of shit, that's a bastard coated bastard with bastard filling

  13. #12
    Ridin hard n dirty Array Mr.Sushi ya ha's Avatar
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    The battery I used on my 650r was from battery world. There is one on Broadway down by MEC also try Brunett Battery on Brunett in New west...I got one about the size of 2 packs o smokes that they use in emergency lighting. I think I seen the same batteries sold at acklands or a safety supply store. Only was $30.00 and was fully sealed.
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  14. #13
    Supporting Sponsor/Vendor Array EdmondsBatt's Avatar
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    Sounds like the 12V 4Ah battery he put in, by the descriptions. Cant be 4mAh. Of course, in the same size, a 5Ah would have been slightly better...
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