What's the "battery indicator mark"?

[jcslocum]

Originally Posted by Auf los!

I am personally not sure if the "L" brackets are metal or plastic. I wasn't about to stick my finger in there to feel them. But the plates in the battery are metal, so I wouldn't be surprised if they were metal.

Sticking your finger in there is't good. Sulfuric acid will give you a burn. The plates in there are a special lead plate designed to live in an acid bath and make electrickery! Cool stuff...

[lkchris]

The indicators are plastic.

If the battery is white, it could be transparent enough for you to see the water level from the side. If so, there could be a line printed there indicating the fill level.

There are (have been) water bottles available with a long neck that will contact that "L bracket." Pressing starts the water flow and it will stop at the appropriate level.

[Porsche9]

Latest addition that sits on my desk at work. Great conversation starter.