How powerful is my 5mw green laser pointer?

I just got a 5mw green laser pointer from eBay for around $15. The laser says "Laser 301" on the side and takes a battery called "Ultra Fire". This is the first green laser pointer that I have owned other than those red keychain ones that are found at stores near the cash register.

The beam from this laser is visible in dim lighting conditions. Is this normal for such laser? I am wondering if this laser is safe to use and if the battery is ok to use as well.

I am also taking some safety precautions like being really careful not to let the beam catch my eyes. Go easy on me guys, I am new to all of this laser stuff.

Thanks!

Most ebay lasers are way overspec and above 5mw, i would be very careful with it yea i would think the batteries are alright.