This Logitech T650 touchpad hasn't been used/charged for probably 5 years. Stored indoors. No heat exposure or freezing temps. It was likely at half or less charge when last used. Battery is
Logitech T650 Wireless Touchpad for Sale in Newport News, VA - OfferUp
Logitech Touchpad T650 review: Multitouch gestures on any Windows 8 PC, tablet - CNET