What is the battery life of the batteries on the LP/EP series controllers?
On the LP1501 / EP1501 and LP2500 / EP2500, the stored database will be saved for a minimum of three months after power is removed, assuming that the coin cell battery is fresh.
On the LP1501 / EP1501, a fully charged battery will store the database for a minimum of three days. It can take up to 48 hours to fully charge the re-chargeable battery.