12 volt 7 ah lead calcium battery

[xerox76]

Here's a stupid question, I don't know enough abou tthese batteries, other then I used them alot on my last career path.

I was using them to support about a 15 amp load at max on the panels.,

I was wondering if anyone knew if they would be abke to support about a 30 amp at MOST draw?

I got a few cheap from I use for camping lights, and was thinking about running them in my boat, not for speed amp drawing purposes, but for a nice speed,/ yet day runner.

any ideas?