As it says on the tin, I'm after a new battery for the ten in the UK, what's hot and nevermind what's not.

I've always found Yuasa (as used OEM) to be very reliable & long lasting.

There goes a clever man..

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Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...

What about lithium batteries?

I have always used Yuasa and they really are the best of the "normal" batteries, I know nothing about the lithium ones. And I use a CTEK battery trickle charger when I am not using the bike, so my battery lasts several years.

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(Now sold on, sob) 2011 Blue XT660X with gold wheels, was 26,500 km.
Engine mods: K&N Stage 1 filter, DNA Stage 2 filter, snorkel removed, Kev fuel mod fitted.
Plus: smoked Puig screen, Yam aluminium sump guard, Yamaha / Acerbis handguards, Givi Trekker aluminium side cases, Leo Vince X3 cans plus Kev front fork mod and Fender Xtender. Just fitted Michelin Road Pilot 3 tyres.

SOLD the XTX for a Super Ten 1200. And just bought a Raptor 700 so staying on here for some tips....

From memory I think the lithium battery's don't give any warning when they're getting run down or tired. They just die suddenly.

I have very good experience with motobatt. It's cheap, reliable powerful and sometimes lighter then the OEM/yuasa versions

I can second Motobatt batteries, had them on several bikes will crank for ages on a 25 year old twin on a cold frosty morning.

Never had a failure and some models come with 2 sets of terminals to fit mutiple bikes. Perfect if you have accessories wired too battery.

Also theyre yellow....... I like yellow

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To boldly go where no Tenere has gone before.

Do the Lithium batteries need a special charger?

Yes, you need special charger. Using ordinary charger poses a risk to damage the battery and eventually cause fire. Charger can be sourced through e-bay circa 55-60 GBP

Hope this helps.

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that is how i feel about my XTR
Mods so far:
Hyperpro front springs; Hyperpro rear shock spring; modified air box; LED tail light; LED indicators + new relay; YZ pegs; Lucas aluminum bar; brisk spark plug; snorkel removed; DNA stage 1; second hand DynoJet O2 mod; crash bars; front and rear steel braided brake lines; soft EBC brake pads; mitas 07 tyres, 2in1 Metal Mule exhaust, Blocked AIS, tall OEM screen, OTR bash plate