Lithium Ion replacement batteries

[oscar777]

Anyone have experience with these?

Quite a few replacement lithium ions, claiming to be 2kg lighter etc.

Would the cranking power be good enough? Whats the lifespan compared to tradition batteries?
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Push bike with a 80cc jerry rigged 2 stroke---> CBR125R ---> GSXR600 ---> Ducati 1098SF

[G]

If done right, should get more cranking power and better life.

Some aren't, however.

Using a basic but high spec battery designed for radio controlled vehicles, I could jump start my van with a half kg battery (no container, charging circuits, etc).

My next bike battery however will be trying out ultra capacitors I reckon; one of these: https://www.maxwell.com/images/documents/datasheet_16v_small_cell_module.pdf .

[Irn-Bru]

I've got a JMT one for my DRZ, 627g vs. 2.7kg for the stock one. My mates had one for about 2 years, used all year round and it work's fine, even with his big bore/stroked 462 high comp engine. One thing I noticed is it came charged at 13.4v whereas the old battery was 12.3v after sitting a few days. Also has a handy LED charge meter on it.
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KTM 990 SMT & Suzuki DR-Z 400 SM

[oscar777]

[Alex A]

Interested to read feedback on specific brands here. These appear to have come down to a price that's quite reasonable.

[chris-red]

The last time I looked at these, which was admittedly years ago, if you ran the battery completely flat i.e. left the lights on, it was fucked, that put me off.
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[RhynoCZ]

The other feature of a Li-Ion battery is, that they don't tend to lose the charge that quickly (if not in use) and the re-charging times (from the wall socket) are very, very short.

The downside of this technology is the price and the fact it is a Li-Ion battery (so as the time goes, the performance of the battery is degrading, BUT not that quick and even at 70% of performance, it'll be still enough to run your starter motor and lights of your motorcycle). Also, never let it drop to 10v and less, you're gonna harm the battery.

I was thinking of it, about 4 years ago and after considering the investment, I stayed with, back then, a classic wet battery. Now, reading this thread I'm thinking about it again.
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'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

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[R1stu]

Is there a charging circuit built into the battery? You need to use special chargers for Model LIPO and LION batteries.
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[mudcow007]

there is a protection/ low voltage circuit in them isn't there?

so if the voltage drops below a certain level they basically die, reason for this is with voltage drop they become unstable an tend to go pop



Lithium fires are bad m'kay

[Hetzer]

The JMT ones have the balancer built in, so they can be charged from a regular charger (but NOT one that has a de-sulphate function, that'll put too much voltage in and it'll probably make the battery catch on fire). The built-in balancer is what allows them to charge from a regular bike's charging circuit.

Lithium batteries do NOT go "pop" just from falling below their minimum voltage, they simply die.
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[skatefreak]

Yays, LiPo's!
Over discharging and they will just become bricks.
Without much charge they don't do much tbh.

Have a regulator fry and start pumping 18+ volts into it though and you're going to get some very very very toasted buns!

They better darn have charge protection built into the battery in this day and age so upon that assumption, if it were priced reasonably enough I would certainly consider one...

[Aff]

Yes, you would hope they all have charge circuits.

I wouldn't bet on it though:

https://www.bikechatforums.com/viewtopic.php?p=4060912#4060912


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Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
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[B5234FT]

Does anyone know of any reputable ones, with high and low charge protection built in which are actually fit for purpose?

It's frustrating that its not difficult or expensive to do right, just no one really seems to, or if they do, you rarely get a straight answer.

[Ariel Badger]

[bladerunner]

Lipo's don't really die if you let the voltage drop.... They usually have an inbuilt circuit that disconnects the battery if the voltage drops below 3.2 or 3.1v per cell to protect them.....only problem with this is it means you can't charge the buggers either, unless you get to the battery contacts before the circuit.

I've salvaged loads of "dead" lipos by charging them Untill the voltage rises over this cut out limit when normal charging can take over. Loads of tablets, vapes, and phone battery's have sprung back to life doing this due to people repeatedly turning devices on when flat!!! Lipos don't like to be stored either fully charged or flat as it kills the chemistry in the battery.

On a side note tho a friend of mine just bought a few 16 and 20 amp 3 cell battery's for his hexcopter and they were £33 each on sake from hobby king!! That's enough for a good size car to use :-0
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Current bikes...cbr929, KDX200's, Rd125lc mk2, RGV250's

[Wafer_Thin_Ham]

Shido or Shorai are two of better brands IMO. between a third and a fifth of the weight and better cold cranking. They lose charge fair more slowly when not being used. I'll be picking up a Shido at the end of the month as my lead acid in the R1 is dying.
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[temeluchus]

I have a JMT lithium battery in my GSXR1100. Sat all winter outside and started the bike first push of the button last week.
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[Alex A]