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Thread: Lithium/Iron Battery Primer (LiFePO4)

  1. #91
    apriliaforum expert ledwrist's Avatar
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  2. #92
    apriliaforum expert rule62's Avatar
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    2016 Honda CBR 1000rr SP Repsol

    2014 Dorsoduro 750 ABS - sold

  3. #93
    %@*#&! hank's Avatar
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    I 'thought' I had disconnected my EarthX battery on the Mille - unfortunately, it is completely dead and not willing to accept any power from my fancy smart charger - as should be expected based on the info posted earlier in this thread by Time Bandit...

    So much for a quick street ride today

  4. #94
    apriliaforum expert Stu_O's Avatar
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    Quote Originally Posted by rule62 View Post
    Too many CCA? ROTFLMAO! This is where the discussion goes when folks don't understand the subject. I remember when alkaline batteries first went mainstream, there were folks warning the public not to use them in flashlights, because they were too powerful and would burn out the bulb.

    Anyhoo...just thought I'd post a link to the manufacturer of Honda's new Lithium Iron battery that comes in all 2017 Fireblades. It's not available for sale to the general public...yet. Note that it has a battery management unit for equalizing charge from the bike's charging system, as well as a internal, non-serviceable fuse for preventing thermal runaway. I hope the Fireblade's charging system can prevent voltage from dropping below 13.6 volts at idle with brakes applied and all electrical accessories on, because - typical of Lithium Ion batteries intended only for operating the electric starter, it has very few amp-hours...4.5 to be exact. It's claimed to provide good starting performance down to 15 degrees F. Honda provides no warranty on this battery and recommends the dealers talk each Fireblade owner into buying their new LiFePO4 charger.
    http://tinyurl.com/yc96wejj
    Enjoy

    Stu O

  5. #95
    apriliaforum expert rule62's Avatar
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    Yeah... it was a dumb question to begin the thread. Granted, I'm nowhere near an expert on the topic. I was just a bit concerned, ie. jumping a moto battery from a running car. I've seen problems with those who have done it, and wasn't sure if it was amps or whatever, that screwed things up. The 10 Ah lithium on the DD has been holding up really well.
    2016 Honda CBR 1000rr SP Repsol

    2014 Dorsoduro 750 ABS - sold

  6. #96
    apriliaforum expert kzmille's Avatar
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    The most common problem with jumping from a car battery is the cables are not large enough or the connections not good enough to overcome the load of the low battery.
    This is America. Use your turn signals or WE WILL KILL YOU - remember Sandra Bland

  7. #97
    apriliaforum expert Stu_O's Avatar
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    Or, the jumper cables are connected reverse polarity and fry the bike's electronics.

  8. #98
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    Can someone comment on the following question about shorai lithium battery charging;

    It goes like this, I am using Aprilia 125 Mojito Custom 2010 model, it has old school type 3-phase alternator (3 wire, 40VAC output) and originally came with 12V Yuasa lead acid battery.

    Since I first bought the bike I measured the voltages on this Yuasa battery, as non-load (no ignition, no lamps) voltage 12.5V and motor idle voltage 13.2V and motor speed 3000rpm voltage is 3.35V. Then for some reasons I wanted to change the battery to Shorai 12V LiPoFe lithium battery.

    I understand that lithium battery needs minimum 13.4V and maximum 14.8V, and I was aware that I am even lower side charging since the first day. But I just wanted to try anyway and during 4 full years I was happy with it without any single problem, until last month. I checked the r/r and it was not doing well, so i changed the r/r (old school rectifier/regulator, so it is not Mosfet type) with the same r/r type and bingo, the same battery is running smoothly again. Only because of this mentioned old r/r problem, i had to take out the battery and charge in external charger for 45 minutes only.


    My Question is, why I am not having problem with this lithium battery, if I am under-charging since the last 4 years ??? Could it be because I am in tropical area (singapore) where 365 days is hot in a year, so no cold wheather issue ? Or the old-school alternator on the bike is giving lower Volt but it might have sufficient Ampere output ??

    I am really wondering the possible reasons for these questions and to have an idea when the battery could say bye-bye to me and to replace it with a new one. I use the bike every day to go to work and return home, so total riding time daily is 1 and half hours. The catalogue of this shorai battery says external charging time is about 45 mins only.

  9. #99
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    Quote Originally Posted by dartanyan View Post
    Can someone comment on the following question about shorai lithium battery charging;

    My Question is, why I am not having problem with this lithium battery, if I am under-charging since the last 4 years ??? Could it be because I am in tropical area (singapore) where 365 days is hot in a year, so no cold wheather issue ? Or the old-school alternator on the bike is giving lower Volt but it might have sufficient Ampere output ??
    Because you just bought one, stuck it in and rode your bike instead of trying to mind screw every little detail looking for reasons to fail so you could complain about it. You're doing it right.

  10. #100
    apriliaforum expert kzmille's Avatar
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    Quote Originally Posted by dartanyan View Post
    ...My Question is, why I am not having problem with this lithium battery...
    You are most likely not having problems because a 125 does not put that much stress on a battery. And it is a bit of a myth that a lithium battery of this type must always be charged at such high voltage.
    This is America. Use your turn signals or WE WILL KILL YOU - remember Sandra Bland

  11. #101
    apriliaforum expert ledwrist's Avatar
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  12. #102
    apriliaforum expert bloodnutt's Avatar
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    Replaced a Shorai today that is 7 1/2 years old.
    I'm happy with that length of time from the Shoria.
    My replacement is an SSB which has a slightly larger case than the Shoria, but less weight.
    Was $181 Au for the SSB where a Shorai would cost $240 Au.
    Do not go gentle into that good night,

    Rage, rage against the dying of the light.

  13. #103
    apriliaforum expert banzairx7's Avatar
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    Been playing with Lithium batteries a lot since this thread started a million years ago. I've been using Battery Tender brand batteries exclusively now. the main reason is they shut themselves done when the voltage gets low. This is what killed everyone of my shorai batteries. It would get discharged and then be junk. The battery tender you just hook up the charger and it springs back to life like nothing happened. They also have a lot more charging smarts in them so don't need the special cell balancing charger like the Shorai needed.

    I actually installed two battery tender batteries(360cca each) in parallel in my car and they have been going great for over two years. I've drained those down to nothing more times than I'd like to admit and they still work like new. It never cranked over so fast as it does with those. Dropping 30lbs was nice too.
    2006 Derbi GPR125 EFI Conversion, 2003 Derbi GP1 70cc Scooter, 1974 Yamaha RD350

  14. #104
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    Hi new poster here
    #1 Thanks for this thread!
    #2 I'm not an Aprilia guy ended up here while searching out a new battery for my brand new 2014 EBR1190 Naturally the Factory Shorai had given up the ghost, actually the "techs, Ha Ha" at a car dealer nearly destroyed the brand new 2 mile Odo bike attempting to "quick charge" it. fortunately they stopped when the battery was "just" bulged and melting. No damage to the bike, whew.
    So this is like the definitive thread on Lithium Batteries, after reading through it several times and near endless searching over 4 days I think I have decided on the earthX ETX24C. It has the elusive combo of fitting in the tiny space available, enough cranking power for the High compression 11900cc V-twin and all the battery protection features I feel are needed for long battery life.

    ETX24C specs
    Pulse Crank Amps (PCA): 420A
    Cold Crank Amps (CCA): 270A
    Dimensions: 5.9in (L) x 3.4in (W) x 4.5in (H)150mm(L)x86mm(W)x115mm(H)
    Over discharge protection
    Over charge protection
    Built in cell balancing technology
    Short circuit protection up to 1,000 amps
    Excessive cranking protection

    Since It's winter in Wisconsin I have 2 months before this beastie hits the the streets, will wait a few days before pulling the $259 trigger and would appreciate any comments yeahs, nays, or flaws in the plan.
    Hopefully y'all don't mind If I post links to this thread in other forums, again after extensive searches this is the best discussion of lithium batteries I found anywhere.

  15. #105
    apriliaforum expert ledwrist's Avatar
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    New battery development here in Austin. It will be interesting to see if they can get this in production.

    http://www.engr.utexas.edu/news/arch...ough-batteries

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