My family are the first owners of our home and have discovered yet another problem with it. We will not attempt to fix it ourselves but I could use some additional information if someone could please help me out. While replacing wired-in smoke detectors, we discovered that two breakers had to be shut off at the same time in order to cut power to one of the detectors. Based on other forum posts that I've read on this site, that is apparently wrong, and dangerous. Can someone please explain why it is dangerous/how urgent an issue it is? When I mentioned it to my dad he said 'we've lived in this house for 15 years without a problem, we'll get it checked out the next time we need an electrician out for something else'. If it's dangerous, I don't like this idea and would need to explain why it's a bad idea for him to wait. Also, there isn't an easy way to 'check' all the wiring in the house for problems is there? I'm guessing not. I'm just worried there could be more issues we don't know about yet, as we have already had another wiring issue come up a couple years ago. Thanks!

First of all statement: I am aware of fire/explosion risk and i'm not recommending anyone to try to recharge non rechargeable batteries. As some of you probably know, non rechargeable AA/AAA batteries can be recharged but it is not safe because chemicals inside can expand when get warm which may lead to explosion/fire. Some guy on youtube charges them by setting power outlet to power on, power off every 15 minutes to avoid battery heating by using timer outlet. That's how i want to charge my [U]standard alkaline AAA's[/U]. Only thing that bugs me is [I][I][U]how many amps and volts should i use and for how long time?[/U][/I][/I] [ATTACH=CONFIG]16514[/ATTACH] For those who wanna tell me to just buy rechargeable batteries - i already have them - sanyo eneloops and maha c800s charger. But i wanna try this.