Trying to find info re battery size to drive an Alton starter motor .

batrider said:
Positive earth should make no difference to the battery.
Click to expand...
As i stated in my original question ,the local battery supplier was sure if the Lithium battery would work with the positive earth and the current charging setup .
He was just being careful and didnt want to sell me a battery that might not have worked .
With the info all you guys have provided me with I can now confidently move forward with this project
I have a bit of time as am still a few months away from riding still whilst recovering from a triple disc spinal fusion .
 
wheelie said:
Hi Greg ,
I appreciate your advice about the Lithium batteries which no doubt comes from experience and thats why I reached out for advice .
You have put my mind at ease and will look into the Mosfet regulators also .
Are they a motorcyle specific regulator and where would I start to look to find one .
Wheelie
Click to expand...
Go to my web site, look at the bottom and email me.
 
lazyeye6 said:
Alton recommends a battery with at least185 CCA. I use the Shorai LFX19A4-BS12 to start the motor in an 850 with an Alton kit.
Dimensions are: 5.83”L x 3.39”W x 3.46”H. This tiny battery will fit anywhere and aids in installation of a lot of wiring in
a very tight space. It is expensive at about $220 US. Apparently this battery has a superceeded part number of LFM19A4-BS12
Of course, like oil threads, there are lots of opinions about lithium ion batteries.
Click to expand...
My Motobatt QuadFlex battery is the same dimension as the Shorai that you have .
My concern was with the charging system and the reverse polarity but with all the replies you guys have sent me ,I have a plan .
Thanks
 
marshg246 said:
IMHO:

Since he has no clue, it would be better to listen to people here with one. Positive/Negative ground has absolutely nothing to do with the discussion.

It's true that the original charging system is not perfect for Lithium nor is even the Tri-Spark or others but perfect is not needed. In fact, the original system is just OK for old Lead/Acid and not perfect for AGM or GEL! The modern MOSFET regulators provide much smoother (less electrical "spikes" in the output) so they are better but they slightly undercharge Lithium batteries and that is good in my book. A slightly undercharged Lithium battery has way more "power" than a fully charged Lead/Acid, AGM, or GEL battery. It also means that over charging is much less likely and over charging is dangerous.
Click to expand...
Greg , I just did a bit of research about the Mosfet regulator and it can be purchased from the supplier where I am giong to buy the starter kit here in Australia so will include that with the installation .
Thanks
 
wheelie said:
So ,you run an Alton starter fitted and your bike run a negative earth system .
What are the advantages and whats involved with doing that and why did you do that . ?
Click to expand...
Leaping in here - It is normally done if you have something wired in which will only run negative earth. In my case i fitted a Motogadget Mo-Unit so had to change to negative earth. When buying an Alton you have to specify whether you want positive or negative earth but Alton can supply instructions on how to change the starter polarity if you change your mind later.
 
ntst8 said:
Leaping in here - It is normally done if you have something wired in which will only run negative earth. In my case i fitted a Motogadget Mo-Unit so had to change to negative earth. When buying an Alton you have to specify whether you want positive or negative earth but Alton can supply instructions on how to change the starter polarity if you change your mind later.
Click to expand...
I changed my Alton to negative earth when I did a rewire
Didn't really need to
 

Similar threads

Fast Eddie
  • Locked
Would an Alton starter handle a 1007 motor ?
Replies
2
Views
809
toppy
T
J
Adding an Alton starter to my café racer
2
Replies
30
Views
4,036
Jeandr
J
Back
Top