The E-Plex Lock uses 4 “AA” alkaline (only) batteries. A variety of factors such as the shelf life, number of lock openings per day, if the users have been accessing the lock in card only mode or PIN and card mode, the environment, battery brand, lock settings, etc., will determine how long your lock will operate on a set of batteries. In average conditions, a set of 4AA alkaline batteries can last up to 150,000 openings. A Low Battery condition is identified by a flash of both red and green LEDs when a valid access credential is entered/presented and the lock will still give access. During the low battery state, the lock can continue operating another 500+ openings. However, it is strongly recommended that all four alkaline batteries in the pack should be replaced as soon as possible. This is especially true in winter when the temperatures go down very low and the battery low duration is considerably shortened. |