Is your ADT or DSC Impassa alarm system beeping about a low battery? Time for a reliable replacement! This is a high-quality, direct replacement battery pack made specifically for the ADT Impassa wireless alarm systems and the DSC Impassa 9057 Wireless Control Panel. It's compatible with the original part number DSC 6PH-H-4/3A3600-S-D22. The specs are solid: 7.2 Volts, 3700mAh (or 26.64 Watt-hours) capacity, and it's a Nickel-Metal Hydride (Ni-MH) type – perfect for backup power. It's got all the important safety certifications too: ROHS, CE, and UL listed. That means it has built-in protections against over-charging, over-discharging, getting too hot, over-current, and short-circuits. Basically, it's safe for your home system. If your wireless sensors are dying faster or the control panel isn't holding a charge like it used to, swapping this battery will get you back up and running. Remember to fully charge the new battery when you first install it to activate it properly. Not 100% sure it's the right one? Just reach out with your old battery details or a picture – they offer help within 24 hours. It's a simple, affordable fix to keep your home security system protecting you without annoying low-battery chirps in the middle of the night.