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post #1 of 7 (permalink) Old 08-19-2019, 01:21 PM Thread Starter
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battery monitor

Hi Guys i'd like to put a battery condition display so i can keep my eye on what voltage is in the battery ,has anyone done this and any useful links (2009 triumph america )
Cheers Steve
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post #2 of 7 (permalink) Old 08-19-2019, 06:10 PM
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If you mean a voltage gauge, I just did this on a 2008 America in a thread here:
https://www.triumphrat.net/air-coole...fo-lights.html
Your challenge would be to find a location for the gauge, but it is a fairly easy modification.
Be sure to power it from a switched fuse, not from headlight, etc., or you'll show a false low. There is voltage drop between the battery and lights.
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Last edited by VABird; 08-20-2019 at 06:43 AM.
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post #3 of 7 (permalink) Old 08-19-2019, 09:49 PM
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Hey Steve, sorry, I don't have any help with a battery health indicator.
Can't help but wonder if wanting to know the battery state/charge voltage might lead to a new aftermarket rectifier/regulator
I know my OEM rec/reg's charge characteristics didn't leave me with much confidence when chasing low battery issues years ago.

2009 America with some modifications, a lot of fun that I can ride all day. (sold and miss my 2008 Bonneville, a great daily driver)
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post #4 of 7 (permalink) Old 08-20-2019, 04:08 AM Thread Starter
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Quote:
Originally Posted by MattyMo View Post
Hey Steve, sorry, I don't have any help with a battery health indicator.

Can't help but wonder if wanting to know the battery state/charge voltage might lead to a new aftermarket rectifier/regulator

I know my OEM rec/reg's charge characteristics didn't leave me with much confidence when chasing low battery issues years ago.
Might be my problem as I don't use it a lot it losses charge

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post #5 of 7 (permalink) Old 08-20-2019, 05:45 AM
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Quote:
Originally Posted by nightfire10 View Post
Might be my problem as I don't use it a lot it losses charge
...so why not keep it on a battery tender?

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post #6 of 7 (permalink) Old 08-20-2019, 07:41 AM Thread Starter
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...so why not keep it on a battery tender?
1st floor flat ! No power in car park

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post #7 of 7 (permalink) Old 08-20-2019, 08:45 AM
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Quote:
Originally Posted by nightfire10 View Post
Might be my problem as I don't use it a lot it losses charge
I tend to ride to work and errands more than long weekend excursions. The low voltage situation from lots of cranks with too few miles ridden to regenerate that charge left me just below that magical battery voltage threshold of the ECU on more than one occasion.
Two things I did that really helped were adding a Powerlet outlet and upgrading the rec/reg.
The Powerlet outlet (and DIY adapter with wires terminated into clips) was great for easier access to the battery. That allowed verification of battery voltage and ability to connect to an external power source so the ECU sensed enough voltage to allow the starter motor to engage. And of course it also provided an easier path to charge the battery without having to remove multiple parts using three different tools. *I did also change all those fasteners leading to the battery with SS Phillips screws so only one common tool was needed!
An aftermarket MOSFET rec/reg (Rick's Hot Shot) helped to provide a much more stable and a bit higher charge voltage to the battery.
I think changing to an LED headlamp also helped the battery situation when the key is first turned on. The LED drawing a fair bit less voltage than the OEM incandescent lamp from the battery when the ECU is sensing that voltage and determining if it will allow the starter to engage.

Quote:
Originally Posted by VABird View Post
...so why not keep it on a battery tender?
Like the OP I do not have a garage. I do park under a car cover and can run an extension cord for a needed charge but not practical for regular or daily "Battery Tender" use.

2009 America with some modifications, a lot of fun that I can ride all day. (sold and miss my 2008 Bonneville, a great daily driver)
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