(the battery,not the gay dog) apparantly they have a glass mat type stuff in them as well as the acid. read that they were good for off road (sealed and almost unbreakable,can work upside down(not recomended)) it came ready charged,so now my powervalve doesn't sound like a half dead ****atiel i'll let you know if i break it (was £25 delivered though )
I use an alarm panel battery. Same sort of thing really. 12v sealed lead acid rechargeable. Most of my riding is off road and the bike's been upside down - so far the battery's been fine.
happy days then for some wierd reason my powervalve motor wont work without a battery,and its pants off road without it just didn't fancy being trapped under the bike AND being burnt by acid.....
i'll let you know if i break it 
(was £25 delivered though 
)
just didn't fancy being trapped under the bike AND being burnt by acid.....
