There is also the
Antigravity brand out there.
Antigravity Batteries is a company dedicated to building the best battery available for Motorsports. We build innovative batteries to meet the demands or racing and everyday use. We do not cut corners or use inferior battery cells in order to make a less expensive product. When you purchase Antigravity Products you are getting the highest quality available, a product built and designed here in the USA using Power Cells manufactured by the American based company that supplies Power Cells to Ford, Toyota, GM and other world class companies.
You
do need to use a specific charger for the antigravity batteries.
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Statement from Shorai about battery orgin.
I am totally with you on buying USA-made goods, and I try to do so whenever I can get what I need, even if I have to pay a little more.
Unfortunately, to produce these batteries in the USA right now would mean literally doubling the prices we have, which would mean we’re out of business before we got started.
I just came back from 18 years in Japan, and the Shorai engineering was done while I was there, and most of the cell internals are Japanese as well. We assemble the batteries in China, at our factory which has QC by Shorai Inc. USA.
Please do keep in mind that Shorai Inc. itself is a 100% American company (we are not owned by our factory), that we employ 8 Americans now and a lot more to come, and that we are plowing all of our profits back into sponsorships for American riders and spending with American advertising agencies. And any profits later will stay here, too. I hope that we can get a plant going here in future (maybe Az or Tx?), when our volume is up and our costs fall.
All the Best,
David Radford
President, Shorai Inc.<
845 Stewart Dr., Suite C<
Sunnyvale, CA 94085
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EDIT:
I just found these batteries today called "Earth X"
EarthX, Inc. is a US company based in Colorado. The company was founded by an electrical engineer and a mechanical engineer who are passionate about riding and wanted a better alternative than the 140 year old lead acid technology. The desire to remove weight was also very important and after years of research and development, EarthX launched a full line of lithium batteries for all your power sport needs. We are proud to be an American company with a mission to have the highest quality and best performing lithium battery in the world!
Our batteries are designed to be a drop-in replacement of a standard 12 volt lead-acid battery, so no special or expensive charger is required. Our batteries will work with any vehicle charging system and “modern” lead-acid battery chargers, thanks to our built-in battery management system. And our batteries are an exceptional value given the fact they last years longer than a lead-acid battery.
There is a lot of talk about lithium batteries these days, but not all lithium batteries are equal. There are dozens of different types of chemistry used in lithium batteries. Our batteries use cells made of Lithium Iron Phosphate (LiFePO4) chemistry that was developed in the U.S.A. This chemistry is the highest performance and safest on the market today.
Lithium batteries are fundamentally different than lead-acid batteries. The lithium cells inside the 12V battery need electronics to monitor and balance the voltage/charge of the individual cells. Other companies sell a balancing charger, which you have to plugin periodically to “top off” and balance the cells. Inside every one of our batteries is a microprocessor Battery Management System (BMS) that monitors the charge level of each cell and balances the charge when needed, protecting the cells from overcharge or over-discharge. What this means for you is more starting power, longer battery life, and the safest lithium motorsport battery on the market.
All types of lithium batteries (not just ours) require a “BMS” that monitors and balances the cell charge.
http://earthxmotorsp.../our-batteries/
http://earthxmotorsp...al_111017_D.pdf
