Do you leave the batteries in the toys for extended periods of time? Like Galvatron, Shockwave, Omega Supreme... Or do you remove the battery if it's going to sit there for a while? Any problems with leaving it in there for over a year without turning it on?
I always take batteries out; I remember having a Star Wars slide projector totally ruined by leaving the batteries in. I'm not so sure about the little batteries used in most TF stuff nowadays, but I never leave batteries in anyway, just in case.
I always take them out. I never use them that much. You should be okay with the button cells, but like Draven and fschuler said, better safe than sorry. Especially with those gorgeous older ones.
Even the ones with the button cell batteries, I take them out. But thats not a protection matter, I just don't like toys with sound.
I take them out when i dispaly them and when i move, but when I transformer them and play with them i replace the battery just for fun and to hear the sounds again
I take the little ones out and throw them all in a baggie. Plus half the time the sound they make is annoying. Especially in the middle of the night when you're trying to be quiet, and one accidentally goes off It's a good idea and recommended to remove the normal ones (AA & AAA etc) becasue they will leak acid over time and destroy your components
I bought my G1 Shockwave at Botcon 99 and it came with the battery. Havint touched or looked at the battery ever since I got it and I havint had any problems. Although now I might go and check
It is a good idea to remove standard alkaline batteries if you expect them to be unused for long periods of time as they can leak acid. I haven't heard of problems with button cell types but you never know. In contrast to that, my g1 Shockwave had his original battery in up till I got him out of storage a year and a half ago with no problems. I think this is more of an exception to the rule though as I was suprised there was no leakage. In closing. Take the batteries out if your toys (or other electronics) will be in storage. It is always better to be safe than sorry.