we got ours on ebay, it was pretty good deal.
we will see how long it will last tho, we have not had good luck with batts in our king quad.

west king: i remember reading your big post, very informative. from what i found, all of the major brand LiFePo batteries put out more juice than the stock battery so im covered there, now im just looking for a low price.

grkguy: other people that i have talked to said they get good life out of them so hopefully they last on your king

Yeah, I just can't for the life of me remember which one was the best deal.
Google wiped out the entire archive for the quadracerhq domain, so I can't bring the cache of that post up.
I'll keep doing some research about it, I'm actually in the market for one too so I'll let you know what I find.

My experience is that Chinese manufacturers have lipo batteries down pretty well.
I can't say that all batteries are high quality (some are practically given away as factory rejects, then another company sells them without labeling as such) but for the most part if it's not priced ridiculously low it'll be fine.
The best lipos I've bought so far have been Chinese if that tells you anything.

Jason, whats yhe mah rating and dimension of the batteries?

the 8 cell that would work with most of our applications.

Dimensions (Standard): 4.5" (L) x 2.5" (W) x 4.25" (H)
Weight: 768 grams (1.7 lb)
Voltage (Charged): 13.6V
Amperage: 15 Pb-eq A/H
Pulse Cranking Amps: 275 CCA
Operating Environment: -18°C (0°F) to 60°C (140°F)
Typical Applications: 1000cc and under multi-cylinder motorcycles and 550cc and under singles cylinder dirt bikes, scooters, and ATV’s.

They also claim
No trickle charger required, loses only 10% of charge over a year of static use


more info can be found here.

http://www.ballisticparts.com/products/batteries/batteries.php