Think my battery has given up the ghost. Im having trouble finding a replacement, been told its a big battery and rare? Im surprised at this as its off a relatively cheep bike but im guessing it needs a big battery to turn over such a big single? What is the best one to get and where from?
Cheers

http://www.mdsbattery.co.uk

Got Yuasa-batteries for good prices, same ones as fitted from factory. Dunno about the XTX, but Im buying one for my XTR from them. About 1/3 of the market retail price in Sweden.

Please check model number first but mds list the battery as
YT9B-BS
Smaller than on my lads scooter, eBay throws them up for about �40
Have a look in the classified for battery dealer near you should be able to match that

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you win some, lose some, crash some
K+N filter, snorkel removed, homemade kev mod (with his blessing), co raised,
Pipeworx cans, r1 led back light, under tray removed, small indicators, handguards, cnc short levers,

Motobatt - MBT9B4.. replaces YT9B-BS
half the weight twice the cranking amps..

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

Cheers all, ordered a Motobat MBT9B4 for �45 from M&P. They are only an hour away from me. The local Yam dealer was asking �70 for a standard replacement battery!

Screw Yuasa, Im going for that Motobatt as well

AGM batteries (like the Motobatt) are great – light weight, high cranking Amps, low internal resistance, vibration resistance, don’t sulphate and hold a charge for long periods. There are a lot of advantages, but they do unfortunately (as with everything in life) have some disadvantages.

The main one being that they are very sensitive to overcharging. AGM batteries can be charged at 2.40V/cell (14.4V) without problem in short bursts; however, the float/maintenance charge should be 2.25/cell (13.5V) and warm ambient temperatures require even lower voltages. Most motorcycle charging systems are designed for flooded lead acid batteries (like the XT) and have a fixed float voltage of 14.40V (2.40V/cell) at engine speeds above 3000rpm; a direct replacement with an AGM battery could give trouble by exposing the battery to overcharging on a long ride, particularly in hot weather. Almost all automotive charging systems produce 13.6-14.4V, which is too much for a fully-charged AGM battery over a sustained period.

AGM batteries do not like heat and should be installed away from sources of high temperature. It is recommended to stop charging altogether if the battery core reaches 49C+.

You need to check that your battery charger/conditioner can deal with AGM batteries. Chargers designed for AGM batteries should have a temperature sensor (to self-regulate charging voltage to match ambient temperature) and special charging stages, the last being a "float" voltage setting must be 12.7-13.6V to prevent permanent damage.

Interestingly the ABS Ten has an OE AGM battery which has its own built in temperature dependent secondary charge regulator. It also says in the handbook “take to your nearest dealer for recharging” – as if anyone’s going to do that!

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I live in Wales. Its never hot here, 25 degrees C is a super hot summers day by our standards and we don't get many. Usually cold and wet :-)