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Pete Roper
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PostSubject: Battery question   Battery question Icon_minitime1Sun Mar 06, 2022 8:00 am

So, when I first experienced startus interruptus and got the MPH fix, I bought a new battery from MPH where I got my bike in 2014. The first new battery went in some time in 2015 I believe with the startus fix. They sold me a motorboat mtbx16u.
I replaced it again a couple of years ago even though the old one was fine- as a preventive measure. I have another one identical to the other. I’ve read where is “20” is better and maybe even was the original spec. My dash shows 13.7 to 13.8 regularly when running. When I start the bike, I see it go as low as 9. So question is: is there any value to going to a 20? I know it has at least 50 more CCA. It’s been OK but maybe I should get the 20?
Thank you.
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Pete Roper
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PostSubject: Re: Battery question   Battery question Icon_minitime1Sun Mar 06, 2022 10:10 am

The 20 is specified for a reason.
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beetle
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PostSubject: Re: Battery question   Battery question Icon_minitime1Sun Mar 06, 2022 1:13 pm


What Pete said. The extra CCA is required.




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JohnA
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PostSubject: Re: Battery question   Battery question Icon_minitime1Sun Mar 06, 2022 3:45 pm

Thanks my brothers…. Glad I asked. Somehow I got off track and I didn’t know what was specified.
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Buellbloke
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PostSubject: Re: Battery question   Battery question Icon_minitime1Mon Mar 07, 2022 5:11 pm

When I fitted my MPH kit initally noticed no difference, took 2 or 3 turns to start.
24 hours later after the voltage bled thru all the wiring it takes a prod and it starts Laughing
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rick pope
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PostSubject: Re: Battery question   Battery question Icon_minitime1Tue Mar 08, 2022 4:26 am

Buellbloke wrote:
When I fitted my MPH kit initally noticed no difference, took 2 or 3 turns to start.
24 hours later after the voltage bled thru all the wiring it takes a prod and it starts Laughing

I hope that post was in jest. Legend has it, electrons travel through (good) wiring at just about the speed of light.
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Buellbloke
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PostSubject: Re: Battery question   Battery question Icon_minitime1Tue Mar 08, 2022 4:37 am

rick pope wrote:
Buellbloke wrote:
When I fitted my MPH kit initally noticed no difference, took 2 or 3 turns to start.
24 hours later after the voltage bled thru all the wiring it takes a prod and it starts Laughing

I hope that post was in jest.  Legend has it, electrons travel through (good) wiring at just about the speed of light.

They do now Laughing
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JohnA
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PostSubject: Re: Battery question   Battery question Icon_minitime1Tue Mar 08, 2022 3:26 pm

So I figured out why MPH sold bae the motobatt mtbx16 and not a 20. The 20 is too large (width wise) to fit in the battery box. I should have been more diligent in checking the width. Thought it was right. Does the gang have a suggestion for a 20 that fits?
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lcjohnny
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PostSubject: Re: Battery question   Battery question Icon_minitime1Tue Mar 08, 2022 4:03 pm

i bought a Yuasa YTX20CH-BS and it fits ok dimensions 153mm x 87mm x 161mm
(but the battery box is 'cozy' Sad )
i fit a strap around the battery top to bottom so that i can pull it out when needed.


Last edited by lcjohnny on Wed Mar 09, 2022 4:36 am; edited 1 time in total
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Pete Roper
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PostSubject: Re: Battery question   Battery question Icon_minitime1Tue Mar 08, 2022 5:53 pm

The Yuasa is the OE battery and fits. I didn't know the Motobatt 20 was was larger but I've not used one as I have a pathological loathing of Motobatt batteries. I've stuck with Yuassa over the years.

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Buellbloke
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PostSubject: Re: Battery question   Battery question Icon_minitime1Mon Apr 11, 2022 7:19 am

JohnA wrote:
So, when I first experienced startus interruptus and got the MPH fix, I bought a new battery from MPH where I got my bike in 2014. The first new battery went in some time in 2015 I believe with the startus fix. They sold me a motorboat mtbx16u.
I replaced it again a couple of years ago even though the old one was fine- as a preventive measure. I have another one identical to the other. I’ve read where is “20” is better and maybe even was the original spec. My dash shows 13.7 to 13.8 regularly when running. When I start the bike, I see it go as low as 9. So question is: is there any value to going to a 20? I know it has at least 50 more CCA. It’s been OK but maybe I should get the 20?
Thank you.

The Motobatt MBTX16U has 250CCM compared the the Yuasa 270CCM, its capacity is fractionally larger at 19.0AH compared to the Yuasa 18.5AH.
The Motobatt MBTX20U which doesn't fit our bikes has 310CCM and is 21.00AH.
From my early days with clear see thru yuasa batteries, were talking late 90's they always had more power than any other brand at the time.
Lots knew f*ckall about them.
Am a renewed newcomer to the battery scene as past bikes had harley batteries which were very well made.
Heard lots of bad things about Motobatt batteries whereas only good things are said about yuasa, they always were pricey though.
My past keeper claimed this current MBTX16U was only a year old, getting on for two at time of purchase.
Most of that spent in non use and not maintained either.

This morning first start since late Saturday am greeted with this.
[You must be registered and logged in to see this image.]

Turn off turn on get this and it starts
[You must be registered and logged in to see this image.]

Charging whilst riding, is the greater number whats needed or what is available seeing as others have lower charging specs?
[You must be registered and logged in to see this image.]

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Buellbloke
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PostSubject: Re: Battery question   Battery question Icon_minitime1Fri Apr 15, 2022 11:49 am

lcjohnny wrote:
i bought a Yuasa YTX20CH-BS and it fits ok dimensions 153mm x 87mm x 161mm
(but the battery box is 'cozy' Sad )
i fit a strap around the battery top to bottom so that i can pull it out when needed.

Yuasa is a tad narrower than motobatt and about a mm taller, you not got the screw in secure thing goes top o battery, fits yuasa like was meant to.

[You must be registered and logged in to see this image.]

You mean you fit a strap to assist getting it out, only dawned on me as posted that bom
I never had any startus interuptus issues, all i had was a battery not holding a decent charge.
Least have your fix incase, thing spins up like on steroids Very Happy
Prob remove MPH kit and flog it!

Holding at 12.6
Starting at 10
Charging 14.2
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