My Nokia C1 (GSM on T-Mobile in USA) goes for about a week between charges and it's about 2 years old on the original battery. It's my only telephone which I o

My Nokia C1 (GSM on T-Mobile in USA) goes for about a week between charges and it's about 2 years old on the original battery. It's my only telephone which I on average text or talk on at least once a day. As long as coverage is decent and I have reasonable signal levels that's usual. With weak signal levels or no service when it's hunting for service the battery will go flat in a day or two.