Best battery?

My two bits. A Shorai in my 630 is about three years old and has performed perfectly. I have an Earth-X in my 310 and it's doing great too after two years, although I did have to bring it back to life once with a good battery jump. I will be adding the Earth-X to my other bikes soon, from Zip-Ty of course. I have appropriate chargers for both batteries, an added cost for sure. In fact, I now have four chargers: Battery Tender for lead acid, BT for BMW gel batteries, the Shorai charger, and an Optimate for Earth-X. Crazy!

That must be the difference then. I had an antigravity in my 990 superduke (a bike that's hard to start and drains the bat when not in use) and also in my Italian '10 TE450.
I never had to use a charger on any of these bikes despite the fact that sometimes one of them wouldn't get used for weeks.
I don't even own a charger for a Li-Po battery just for the lead stuff in the cars.

When I got my 2 EarthX batteries, they were cool with my use of a Battery Tender jr. classic that I use for every car and motorcycle battery I own. It's one reason owning an EarthX is better than others... Not needing different and special chargers. Tinken even said the same since it had the circuitry others did not.

http://earthxmotorsports.com/our-batteries#charging

Any charger that DOES NOT have a desulfication mode will work.
A desulfication mode is a high voltage low current mode to remove sulfides on standard battery cell plates. This is usually around 20v and will Kill your lithium battery.

As long as the charger does not have this or it can be turned off its OK to use with earthx.

Comprehensive list of good chargers are in the link at the beginning of this reply.

i want an earth X but dam they are expensive

My next one will be a Super B and they are expensive as well.

But must be good cause tons of racers are using them.

I run the WPS lithium battery. It's a fraction of the cost of a EarthX and weighs about the same. No complaints here. http://www.amazon.com/WPS-Featherwe...ium battery&qid=1461965914&ref_=sr_1_1&sr=8-1

not sure this would fit in a TE250

I'm sure they make a battery that will fit your bike. This battery that is in my 449 is way smaller than stock battery. It came with foam spacers to keep it in place.

http://www.amazon.com/Battery-Tende...&redirect=true&ref_=oh_aui_detailpage_o03_s00

Been running this one for a while in my 511 and seems to do the job. Smaller, lighter, and lifepo4. Only concern is very cold weather performance which will have to wait until next winter to discover.

Looks like a nice light weight batter!

My only concern are the 2 reviews on that link at amazon ... Price is good and I would consider them...

Wow I didn't see that! Yikes!

Yeah, the warranty for the Battery Tender battery sounds about as useless as my Shorai warranty.

I don't own a Battery Tender Battery but who knows, Im sure they claim not having electrical issues... you never know.

Some reviews don't say it all. Quickest way to obtain a result like in the picture is to use the wrong charger.
I have seen it plenty, they still go flat and out comes the old buzz box charger that grandpa made in the 40's.
No modern electrical system on a motorbike will get that result if the charging system is in good order and the battery doesn't have any fault.
There are only a hand full of factories in the world thas actually make the cells inside the battery. The rest of the quality is the electronics they put in to prevent overheating.
Normally in a vehicle application the only overheating occurs when prolonged cranking as this draws huge amps, charging in a bike is low compared to that.
When too hot due to cranking the battery just switches off, or is supposed to do so to avoid damage.
I'm still in favour of batteries made of quality cells as they will perform better and last longer.

Yes CCA matters. But what has been overlooked on this thread is reliability. Not all are created equal and in some cases the off brand lithium batteries had caught on fire. I have the Shorai which goes for about $160 and claims 210 CCA. The Antigravity goes for $180 and you pay $20 more for the claimed 240 CCA. Both have good reputation. I wouldn't hesitate to buy either but knowing how finicky the Husky starters are I think adding the 10% more CCA from the Antigravity would be worth the $20 difference.