Yes, another Battery thread

BritTwit

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Does anyone have experience with Alien Motion LiFePO4 Batteries?
Their website claims the weight and size advantage of Lithium ion, but much more chemically stable than lithium ion so much less inclined to burst into flames.
 
LiFePO4 is the same thing that Shorai uses. I've used Shorai batteries in four different bikes over the past five years with good success.
https://shoraipower.com/Lithium-Battery-Lesson
"Shorai Inc. uses the Lithium Iron phosphate (LiFePo4) chemistry to produce a full line of LFX powersports batteries. The Shorai LFX batteries are designed to provide exceptional cranking performance with a maximum discharge rating of 45C. LFX batteries also offer extremely low resistance through the use of a nano scale phosphate cathode material. And the LiFePo4 chemistry is known for providing enhanced safety, good thermal stability, and long life span."

Just make sure you get the correct type of battery charger. I use Deltran Battery Tender Plus chargers and they have been fine.
http://store.shoraipower.com/FAQ.html
Q. Can I use Lead-Acid battery chargers or charger/tenders?
A.Yes. HOWEVER, you may NOT use a charger/tender if it has an automatic "desulfation mode", which cannot be turned off. We have confirmed with Deltran, makers of the "Battery Tender" brand, that their products do NOT have a desulfation mode, and are therefore OK for use with Shorai LFX, for example. But the best possible charger/tender for Shorai LFX is the SHO-BMS01. It uses the 5-pin BMS port in the LFX batteries, in order to monitor, diagnose, and balance the individual cells during charge. And it also has an optimized storage mode that will give the longest possible service life to your LFX.

If you are storing your vehicle and want to check the remaining capacity, or you're a racer with a constant-loss system, you'll want to know how resting voltage (i.e. with no load or load under 200mA) maps to remaining capacity. LFX batteries should be maintained such that 20% capacity remains at minimum, as best practice. Use a good-quality voltmeter to check remaining capacity, and consider recharge whenever the battery capacity falls to about 50% remaining. Of course, if you get the Shorai dedicated BMS01 charger, you can just hit the "Store Mode" button and leave it to do the work for you.
 
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