I was going through my old stuff and found my gameboy color. Amazingly it and all my games still work. I want to play some of the games I have (as if you couldn't figure out what those are). Just one question. Is it safe to use modern rechargeable batteries in it? I did a few quick google searches and didn't find anything. The GB needs 1.5v LR6 batteries. My re-chargeables are 1.2v HR6. They worked in the system, but the GB took about 5 seconds to turn on. I just want to know if the system isn't going to cause the batteries to pop or anything like that.