www.TheDoItYourselfWorld.com

'sealed lead acid batteries' are servicable. You can take a knife or screwdriver and pry up on the top of the battery (You should be able to see an outline of some sort of cover). When you have removed the cover you can see filler ports. :D I did this to a battery who had no cappacity left and fille...

troy please dont forget to put the old forklift batteries on a charger. It would be a shame to lose them during the winter.