Empire Cordless Phone Battery - Replacement for AT&T-Lucent E5827 (Ni-CD 3.6V 400mAh) | Long-Lasting Cordless Phone Battery for Home & Office Use

This battery pack fit the phone as it should. We've had it in use for about 1 month. It will hold a charge for about 2 to 3 days. We're hoping it gets better as it is cycled through charge and discharge cycles, hence the 4 star rating.