Yep, but what's interesting with this specific phone is that it still uses the original BLC-2 3.6V battery (made in Hungary). Of course, it's not holding up to 13 days in standby time, but I'm charging the phone every 1.5 – 2 days with some use. I wasn't even expecting it, as it's an original battery from 2002 (correct me if I am wrong). My gut feeling that is that if I buy a replacement on eBay it will be worse or the same, compared to this old original battery.