{"product_id":"pentairwaterpoolandspainc_520815z","title":"Pentair MobileTouch II Battery \u0026 Door for MobileTouch II Wireless Controller | 520815Z","description":"\u003cp\u003eThe Pentair MobileTouch II Battery \u0026amp; Door (520815Z) is the OEM replacement battery and door assembly for the MobileTouch II Wireless Controller.\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\u003cstrong\u003eIMPORTANT: LICENSED PROFESSIONAL INSTALLATION RECOMMENDED\u003c\/strong\u003e\u003cbr\u003eElectrical control components must be installed or replaced by a qualified electrician or certified pool technician. Ensure the control system is powered down before servicing the battery compartment or door assembly.\u003c\/p\u003e\n\n\u003cp\u003eThe MobileTouch II Wireless Controller relies on its battery and door assembly to maintain portable, handheld operation away from the equipment pad. The door assembly protects the battery compartment from moisture and environmental exposure — a compromised door can allow water ingress that damages the controller's internal electronics. Replacing a cracked, broken, or missing door alongside a depleted battery restores full weather-resistance and operational reliability to the handheld remote.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e520815Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePart Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eMobileTouch II Battery \u0026amp; Door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm your handheld remote is the MobileTouch II model — not the original MobileTouch or a later revision. The model designation is typically printed on the label inside the battery compartment. When replacing the battery, inspect the door hinge and latch points at the same time; if the door shows cracking or no longer seats flush, replacing both the battery and door together as this assembly provides ensures the compartment remains sealed against moisture.\u003c\/p\u003e\n\n\u003c!-- wft:processed:manual:2026-04-16 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53943785292051,"sku":"520815Z","price":361.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/pentair-mobiletouch-ii-battery-door-for-mobiletouch-ii-wireless-controller-520815z-2.webp?v=1789766903","url":"https:\/\/poolaroo.com\/products\/pentairwaterpoolandspainc_520815z","provider":"Poolaroo","version":"1.0","type":"link"}