This place seems to have just about every battery you could possibly want. The prices are comparable to Amazon dot com, which is where I often get stuff I can’t find locally. My electric shaver has not been able to hold a charge for a while now. I was able to disassemble it(not for the mechanically squeamish!) and I’ll see if I can go back to Interstate and get a replacement rechargeable battery. It will be cheaper than buying a new shaver!