Description The M5Stack ATOM TailBat is an external battery accessory designed for ATOM. It plugs into the tail of an ATOM controller to provide direct battery power for mobile use scenarios. The official product page lists a built-in 190mAh rechargeable lithium battery managed by the IP5303 power management chip. A front switch button controls the power, and a red LED indicator shows the power or charging status. The usage method follows the M5Stack Core style: single-click to turn on power and double-click to turn off power. The indicator flashes during charging and stays on when fully charged. The built-in battery can only be charged through the USB Type-C interface, not through the GROVE interface. Features External ATOM battery: provides mobile power for compatible ATOM controllers. 190mAh rechargeable battery: official battery capacity is 190mAh. IP5303 power management: built-in power management chip controls the battery system. Plug and play: plugs directly into the tail of ATOM. ATOM compatibility: official compatibility includes Atom-Matrix and Atom-Lite. Type-C charging: built-in battery charges via the USB Type-C interface. LED status indicator: one red LED indicates power and charging status. Pass-through interface design: adds battery power while preserving the original wiring method and interface functionality. Specifications External Port 1 x GROVE LED Indicator 1 x red LED USB Port USB Type-C Battery Capacity 190mAh Power Management Chip IP5303 Case Material Plastic (PC) Compatible Controllers Atom-Matrix, Atom-Lite Product Size 55.0 x 22.0 x 14.0mm Product Weight 14.8g Package Size 136.0 x 92.0 x 23.0mm Gross Weight 17.0g Applications External mobile power supply for ATOM Battery-powered ATOM prototypes Portable Atom-Matrix or Atom-Lite projects Mobile testing and field-use scenarios Product List 1 TailBat Other Content Power and Charging Notes Power On Single-click the switch button Power Off Double-click the switch button Charging Indicator Flashes during charging and stays on when fully charged Charging Interface USB Type-C only; the built-in battery cannot be charged through GROVE The official product list includes one TailBat. ATOM controllers, cables and other accessories are not listed as included. Resources M5Stack ATOM TailBat documentation FAQ What is the ATOM TailBat used for? It is used as an external mobile power supply for compatible ATOM controllers. Which ATOM controllers are listed as compatible? The official product page lists Atom-Matrix and Atom-Lite compatibility. What is the battery capacity? The official battery capacity is 190mAh. Can the battery charge through the GROVE interface? No. The official description states that the built-in battery can only be charged through the USB Type-C interface. What is included in the package? The official product list includes one TailBat.
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