Introducing the Aiphone WLW-BT.E Battery, designed specifically for the One Way DECT Wireless Video Intercom. This reliable lead-acid battery utilizes a controlled chemical reaction to provide consistent energy, ensuring your intercom operates smoothly. With a unique battery size tailored for optimal performance, you can trust this battery to meet your needs. Its impressive 4000 mAh capacity allows for quick charging, enhancing convenience and usability. Keep a spare on hand for peace of mind and uninterrupted communication. Upgrade your intercom experience today with the Aiphone WLW-BT.E Battery – your reliable power solution awaits!