Bikes, Hints'n'Tips > Fazer 1000/FZ1 corner
New battery
bigfootpete:
Just got a new Lithium battery, as I was sick of the AGM ones failing after a year.
I thought they had sent me an empty box it's so light! See attached pic.
Even holding it, it feels like the bottom section is empty.
Let's hope this one keeps its charge.
b1k3rdude:
From what I had read on this very subject (because I was going to go down that route), the battery will not charge correctly in any bike without a correct type of charging circuit. All contemporary bikes like the FZS have charging system designed for Lead acid. I would be very very wary and get more info from yamaha and/or the battery manufacturer before putting that anywhere near your bike.
Some info i found online - https://www.quora.com/What-should-be-considered-if-I-want-to-replace-the-lead-acid-battery-for-the-e-bikes-with-a-lithium-one
* For the battery, get LiFePO4 (a.k.a LFP). The benefit of getting LFP is, it's a drop in replacement. The voltage profile is very much similar with your old lead acid, so no need to concern about voltage compatibility.
* For the charger, IF you want to re-use your old charger, make absolutely sure your old charger maximum voltage does not exceed 14V per battery (I don't know how many batteries in series for your old system. So, if it's 24V system, make sure the charger don't exceed 28V). This is probably the hardest criteria to meet, so very likely you'll need to buy a new charger specific for your LFP.
* Don't discharge your LFP completely. Unlike lead acid, you need to monitor your usage and stop using it when it's close to 'empty'. I myself use V2 Cycle Analyst Info Page to monitor my usage.
* Size. How much size tolerance can you accept in your battery frame? The new battery will be slightly off (not much) compared to your old battery. Since LFP will be lighter than your lead acid, no other concern here (you won't be missing the extra weight right?).More info - https://forums.sailboatowners.com/index.php?threads/lifepo4-drop-in-replacement-batteries.169429/
--- Quote ---These companies know next to nothing about LiFePO4 and are simply taking cheap Chinese LFP batteries, slapping stickers on them and reselling them to unsuspecting buyers who believe the pure rubbish that it is safe to charge a LiFePO4 battery at 14.6V or regular lead acid levels.. Why? Because these companies have not a clue about interpreting the Chinglish instructions on the battery to begin with. They need engineers on their staff who actually understand LFP and not just a room full of marketers trying to interpret Chinglish.
--- End quote ---
More info -
LiFePO4 Limitations: • Higher cost - return on investment is primarily based on long-term deployment.
• HAZ-MAT transport - can only be transported under restricted conditions (set by D.O.T.).
• Less resistant to shock and vibration - so not suited to being on a motorcycle then?
• Requires additional power management devices for integration into traditional applications.
• Relatively young technology - will not operate at full potential using available COTS lead-acid chargers & power management appliances. Many associated charging/management technologies are more expensive, further driving up the cost to operate. I wasn't able to find any know brand (Yuasa, Varta, Duracell,) selling these in the UK/USA/Europe.
bigfootpete:
Hmmm, have alternators on bikes changed that much?
I'm checking with a mate who has built his own electric bike and will let you know what he thinks.
old son:
Don't understand why a battery should fail after a year. My bike is13 years old and I am on my 2nd battery!!
tommyardin:
--- Quote from: bigfootpete on 16 April 2018, 03:47:26 pm ---Just got a new Lithium battery, as I was sick of the AGM ones failing after a year.
I thought they had sent me an empty box it's so light! See attached pic.
Even holding it, it feels like the bottom section is empty.
Let's hope this one keeps its charge.
--- End quote ---
Is it Japanese? Because the letter 'T' in Japanese looks like an English 'D' :rollin :rollin
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