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Old 04-19-2014, 06:49 AM   #511
DR. Rock
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Anti-gravity

Two anti-gravity's in DRZ400's. Left disconnected in storage in Las Vegas since last Sept. Hooked them up yesterday evening: 13.7V. Turned key, headlights bright and strong. Hit starter buttons -- both bikes cranked strong, and one started right up. One bike needed a minute, and after two short crank / rest cycles the battery power was perceptably STRONGER.

Very impressive. This is the 13th time we've left batteries to sit for months in between rides, and have mercilessly killed our share, and I can say unequivocally that the Anti-gravity's have opened a can of whoop ass on standard AGM lead batteries for our purposes.

Oh, and they weigh about as much as a potato chip.
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Old 04-25-2014, 06:02 AM   #512
Hamish71
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Current leading contender for F800GS with accessories, daily commuter and regular adventurer?
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Old 04-25-2014, 10:04 AM   #513
bross
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Quote:
Originally Posted by Hamish71 View Post
Current leading contender for F800GS with accessories, daily commuter and regular adventurer?
This question was just asked 7 posts ago and answered. Scroll back a bit.
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Old 04-25-2014, 01:02 PM   #514
Gangplank
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Quote:
Originally Posted by bross View Post
This question was just asked 7 posts ago and answered. Scroll back a bit.
Don't think it was answered for the F800GS.... I'm curious myself.
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Old 04-25-2014, 11:58 PM   #515
Hamish71
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Quote:
Originally Posted by Gangplank View Post
Don't think it was answered for the F800GS.... I'm curious myself.
What he said.....
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Old 04-26-2014, 05:30 AM   #516
Gangplank
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Quote:
Originally Posted by Hamish71 View Post
What he said.....
Guessing it's the Antigravity or EarthX. Biggest you can fit?
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Old 04-26-2014, 05:56 AM   #517
Wise Guy
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Quote:
Originally Posted by Gangplank View Post
Don't think it was answered for the F800GS.... I'm curious myself.
When Cy mentioned the "BMW 650" in post #509, not sure if he was referring to the 650 single, or the newer F650GS twin, which would have the same batt tray as the F800GS. Can anyone confirm?

Found this post from 10/2013 that recommends the Antigravity AG1601 for the F800GS:

http://www.advrider.com/forums/showp...&postcount=357

But I'm curious about this too. I thought I read about a larger capacity choice that involved some easy mods to the battery tray - just can't put my hands on that post right now.
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Old 05-31-2014, 03:04 AM   #518
korkin25
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Pissed

I use Shorai Power LFX18A1-BS12 on 990Adv since Aug 2013.
Today.... on the way from Pamir (Tajikistan to Moscow) that battery begin to show 3.45V...
I will never use/buy it anymore...
I am anoight...
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Old 05-31-2014, 07:03 AM   #519
Global Rider
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^ which is why I believe in something proven, especially when in remote areas.
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Old 05-31-2014, 09:08 PM   #520
JoelWisman OP
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In my experience as a motorcycle insider, Shorai has proven to be a very unreliable product compared to Antigravity and EarthX batteries.

Still learning about EarthX with total time on the market I personally have been tracking of about 1 year.

I have been tracking the reliability of Antigravity batteries for more then 2 years. With them, the verdict is in. When sized and installed, they are extremely reliable. More reliable then any lead acid battery on the market I am aware of.

Properly sized and properly installed are two very important statements. I have seen many failures including short circuits leading to fire on improper instillation. I have also seen many undersized lifepo4 batteries installed which as with lead acid, is a quick way to achieve poor starting and battery failure
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Old 05-31-2014, 09:11 PM   #521
JoelWisman OP
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For the twin cylinder BMW F bikes, an antigravity 12 cell small case is the proper size regular service battery.

For extreme weather or way off the beaten trail adventure the 16 cell small case is the right so sized Antigravity.
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Old 05-31-2014, 09:23 PM   #522
Global Rider
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Location: Canada & the Alps - N 46° 31.714' E 010° 27.212'
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Quote:
Originally Posted by JoelWisman View Post
More reliable then any lead acid battery on the market I am aware of.
Have they been in use over 10 years and in large numbers?

And have they lasted 10 years?

If not, how can you say that?
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Euro & North American Travel & Technical Stuff for the R1150 GS & Adventure

Euro & Alps Motorcycle Tours - Priced Right, How to go about

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Old 11-26-2014, 11:38 AM   #523
radmann10
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Antigravity Battery

Quote:
Originally Posted by DR. Rock View Post
Two anti-gravity's in DRZ400's. Left disconnected in storage in Las Vegas since last Sept. Hooked them up yesterday evening: 13.7V. Turned key, headlights bright and strong. Hit starter buttons -- both bikes cranked strong, and one started right up. One bike needed a minute, and after two short crank / rest cycles the battery power was perceptably STRONGER.

Very impressive. This is the 13th time we've left batteries to sit for months in between rides, and have mercilessly killed our share, and I can say unequivocally that the Anti-gravity's have opened a can of whoop ass on standard AGM lead batteries for our purposes.

Oh, and they weigh about as much as a potato chip.
I hope I have the same luck, my new AG Battery is on the way.
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Old 11-26-2014, 11:53 AM   #524
Antigravity
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Quote:
Originally Posted by radmann10 View Post
I hope I have the same luck, my new AG Battery is on the way.
First, I want to say thanks for the props...

but MOST IMPORTANT OF ALL is that you did it CORRECTLY and disconnected the battery from your DRZ when you stored it. The DRZ is notorious for having a very high milliamp draw when just sitting there. So heavy props to you for knowing that if your going to store your Antigravity Battery for some months just disconnect it from the bike so that it cannot be drawn down.
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Old 11-26-2014, 12:03 PM   #525
radmann10
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Jump Starting

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Originally Posted by Ste7ios View Post
Car's alternator is too much powerful for a motorcycle. The higher current of the car alternator may fry motorcycle's electrical system or other electronic components.

So, when we jump start a motorcycle with a car as a donor, car's engine must not be running.
That is good to know!
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