Best battery for a MKIII E start

Commando Cam · May 31, 2014

Hey guys, I've upgraded the starter to a 3 brush unit and put in a new sprag. I need to know the best , most powerful battery available in the US that will fit in my MKIII. I am using the stock battery tray and stock air box.
Thx,
Cameron

concours · May 31, 2014

Commando Cam said:
Hey guys, I've upgraded the starter to a 3 brush unit and put in a new sprag. I need to know the best , most powerful battery available in the US that will fit in my MKIII. I am using the stock battery tray and stock air box.
Thx,
Cameron

AGM is the new standard for powersport batteries.
These are a great US made example http://www.dekabatteries.com/default.aspx?pageid=510

solarmoose · May 31, 2014

Did you upsize the battery cables (x3)?
That made the difference for my MkIII
and AGM makes good sense for battery.

motoracer8 · May 31, 2014

Get a good AGM battery, YB14-LA2. And buy or make yourself some #6 Cables.

trident sam · Jun 1, 2014

Commando Cam said:
Hey guys, I've upgraded the starter to a 3 brush unit and put in a new sprag. I need to know the best , most powerful battery available in the US that will fit in my MKIII. I am using the stock battery tray and stock air box.
Thx,
Cameron

I have fitted Motobatt MBTX 14AU to my Mk 111 , works very well so far. Been on the bike about 2 years.
sam

mike996 · Jun 1, 2014

I have been extremely impressed/happy with my Shorai 18AH on my Alton E-start equipped Commando. It's been there for nearly 2 years now and regularly sits for months between starts with no charging whatsoever and spins/starts the motor instantly. Got mine from Old Britts: https://www.oldbritts.com/70_shorai.html

Fanfan26 · Jun 2, 2014

For my 850 MK3 I have big cables and DEKA ETX15 for 3 years,no problems.

But it is not possible with the big black box air.No probleme with air paper filter.

Commando Cam · Jun 2, 2014

Guys, Thank you very much for your help. It looks like I have 3 basic choices : a Deka 14ah agm , The shorai 18 ah, or the 2 Shorai 14 ah in series. The Shorai batteries look good but seem overly expen$ive. Admittedly, it has been a while since I bought a battery, but these look more expensive than a car battery. Can anyone give me maximum battery dimension on a MKIII with stock air box and tray?
Thx,
C

Best battery for a MKIII E start

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