Why is my electric razor auto-charging w/o the charger?

I moved to the Northwest in May of 2006. It is now September 2006. I have not been able to find my razor’s charger since I moved. Everytime I use my razor (about once a week) it works for about 30 seconds (long enough to trim my goat and stache) and then dies again. I do not recharge it. But the next week when I pick it up again, it has enough charge to do it again. I live alone and I have had no visitors. What is causing the razor to auto-charge on its own? I am looking for a technical reason with cited source. The razor is a Norelco cheapo mustache and Beard Trimmer I got at BestBuy in Orange County, CA. It cost about $25.00.

Batteries store energy as a chemical reaction. When electricity is used from the battery a chemical reaction takes place that produces the electron flow. Charging the battery reverses this process. When a battery is very low in charge, the chemical reaction is very slow. During the week, the reaction will build up a bit of an electric charge which you then drain in your 30 second trim. The chemical reaction can’t occur fast enough to maintain the electron flow. By waiting the week, the reaction catches up a bit. This can’t go on forever. It will eventually stop completely. You need to get a charger or just replace the whole unit.

Sorry, no source other than 40 years in electronics using rechargeable batteries.

What is the best razor?

My boyfriend is trying to find a razor to give him a "2 or 3-day no shave" look, what would you suggest? He has a full beard and doesn’t want to shave it fully each time to get that look, so yes, what razor or Beard Trimmer would be the best?

gillette is a good brand

Where did my beard and mustache trimmer go?

I used it like a month ago and now my face is all hairy and what-not. I’m searching for work and not being able to clean my face properly is affecting that severely. I know you were that last one to see it. Don’t even try to lie. Hand it over internet.
Ive asked my roommate several times now, he has a few of his own so I don’t know why he would lie about taking it. His mom may have moved it, I do keep my shit in a couple of places around the house. I just really need it guys, I’m starting to look like Bob Villa!

It’s in the cupboard under the sink in the bathroom. Behind the scrubbing bubbles. You might wanna rinse it off, there’s a leak under there and the blades have gotten a little rusty.