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Author Topic: 1973 - The Commando  (Read 4662 times)

Offline canyoncarver

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Re: 1973 - The Commando
« Reply #20 on: Jan 04, 2019, 01:37:39 »
Huge Thank You! to Sonreir for hooking me up with a neat little EarthX battery for the bike.  It's tiny compared to the original needs of the battery compartment.  I have some electrical stuff on the way to build out the new harness.  I've been conjuring up a little box to fit in the battery area to hold everything.

« Last Edit: Jan 04, 2019, 01:39:46 by canyoncarver »

Offline advCo

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Re: 1973 - The Commando
« Reply #21 on: Jan 04, 2019, 10:24:08 »
That's tiny! What are the stats on that battery? 12v5ah ish?

Offline irk miller

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Re: 1973 - The Commando
« Reply #22 on: Jan 04, 2019, 11:22:34 »
They're not rated in the same way lead-acid is rated, but you can pretty much count on double with LiFePO3.

Offline canyoncarver

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Re: 1973 - The Commando
« Reply #23 on: Jan 04, 2019, 12:01:40 »
That's tiny! What are the stats on that battery? 12v5ah ish?

It's made for dirtbikes, it's an EarthX ETZ5G.

"The ETZ5G has 140CCA, 240PCA; weighs 1.1 pounds; has 3.4Ah capacity and has the battery management system"

For a kick only bike, I think it'll do great.

Offline clem

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Re: 1973 - The Commando
« Reply #24 on: Jan 04, 2019, 16:28:49 »
I was surprised to see that new motocross bikes are losing the kicker and going to e-start only. The batteries are small but have enough umph to turn those 450 singles over.

Sent from my SAMSUNG-SM-G930A using DO THE TON mobile app

"After every war there are soldiers who refuse to surrender. To this day there are still thousands who cling to their 30+ year old motorcycles, thinking that the war is still on, refusing to concede that the four-strokes have won"

1972 DS7 http://www.dotheton.com/forum/index.php?topic=45886.msg505995#msg505995
1983 CB550sc bobber http://www.dotheton.com/forum/index.php?topic=30599.30

Offline irk miller

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Re: 1973 - The Commando
« Reply #25 on: Jan 04, 2019, 16:33:04 »
Lithium don't really rate by CCA.  It's funny that even the lead acid batteries promote a CCA rating, which is a worthless rating.  How often do you start your car or motorcycle at 0°F?  In Georgia, that would be never. 

Offline canyoncarver

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Re: 1973 - The Commando
« Reply #26 on: Jan 04, 2019, 16:39:37 »
Lithium don't really rate by CCA.  It's funny that even the lead acid batteries promote a CCA rating, which is a worthless rating.  How often do you start your car or motorcycle at 0°F?  In Georgia, that would be never.

When I started my car this morning it was 11 degrees outside.

Why is it a worthless rating?  I get that PCA (pulse cranking amps)  is more applicable.
« Last Edit: Jan 04, 2019, 16:44:49 by canyoncarver »

Offline irk miller

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Re: 1973 - The Commando
« Reply #27 on: Jan 04, 2019, 18:13:26 »
When I started my car this morning it was 11 degrees outside.

Why is it a worthless rating?  I get that PCA (pulse cranking amps)  is more applicable.
Batteries are promoted based on their CCA.  The reality is, people rarely have to start their engines in 0°F for 30 seconds, which is what CCA is.   11°F isn't 0°, and the difference is enough.  MCA is tested at 32°F and the number literally doubles from 0°F.  But the main thing about it is that the way they are promoted causes people to buy batteries with way more CCA than they actually need, which means they are spending up to 30% more for a battery.  I would wager that the battery you bought for your Commando would be good enough even for electric start.  Your AH value is a more important number, since it's what determines your load.  I think we're both confident in Matt's recommendation for a battery on your Commando, but it's because the AH number is right more than anything. 

Offline canyoncarver

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Re: 1973 - The Commando
« Reply #28 on: Jan 21, 2019, 13:00:24 »
Slooow moving winter break so far.  Minor progress update.  I swapped the adjustable Tomaselli bars out for something simpler.  These are the original bars off my 750 Zephyr.  They look and feel better to me.  The cable routing is also much easier.  I also got some new turn signals mounted where I like them.   I'm also still working on a box for the electrics. 

« Last Edit: Jan 21, 2019, 18:22:48 by canyoncarver »

Offline advCo

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Re: 1973 - The Commando
« Reply #29 on: Jan 21, 2019, 13:12:21 »
Looking good man, I dig those bars on there.