Battery Cap | Expansion for BTN-1 Macro Deck

The Battery Cap for the Apollo BTN-1 Macro Deck is an add-on module that prepares your control panel for wireless, battery-powered operation . This module replaces the standard back cover and provides a PH 2.0 battery connector , allowing you to connect an external battery pack. Note: The battery is NOT included and must be purchased separately. Perfect for users who want to use their BTN-1 wirelessly. Battery requirements and specifications The Battery Cap is designed for batteries with the following specifications: Connector type : PH 2.0 (2-pin) Maximum dimensions : 80mm x 30mm x 8mm (not larger) Recommended specifications : 3.7V lithium-ion, 2800 mAh Battery life (estimated) : Up to 1 year at ~4 button presses per day with 2800mAh battery Requirements : Use only batteries with built-in protection circuit (BMS) Battery not included - you must purchase a suitable 3.7V lithium-ion battery that meets the specifications above. Batteries with a PH 2.0 connector are available online from electronics suppliers. Standby behavior when using battery When using a battery (via this Battery Cap), the BTN-1 automatically activates intelligent sleep functionality to save battery: The BTN-1 automatically goes into sleep mode when inactive Wake-up time : About 10 seconds after first button press First press wakes the device - second interaction registers the action Multi-button functionality (double/triple press) only works when device is awake For instant-response applications: use USB-C power instead of battery This drag functionality is ideal for occasional operation such as everyday scene activation, but less suitable for applications that require immediate response (such as live streaming or gaming macros). Onboard battery charging When you connect a rechargeable battery via the Battery Cap, it charges via the BTN-1's USB-C port . You can continue using the device while it's charging. The battery status is visible in real time in Home Assistant via ESPHome , so you know exactly when charging is needed. Features and Benefits Enables battery operation : Adds PH 2.0 connector to BTN-1 Replaces standard back : Easy plug and play installation Battery Space : Designed for batteries up to 80mm x 30mm x 8mm Onboard USB-C charging : Charges connected battery via BTN-1 USB-C port Battery monitoring : Real-time status in Home Assistant via ESPHome (with battery connected) Intelligent sleep mode : Automatic power saving when battery is used Tool-free installation : No tools required for assembly Stand Compatible : Works with BTN-1 Stand accessory Durable housing : Protects battery and electronics Please note : This Battery Cap does not include a battery - you will need to purchase a suitable 3.7V lithium-ion battery with a PH 2.0 connector that fits within the maximum dimensions (80mm x 30mm x 8mm). Ideal applications with Battery Cap (with battery connected) Perfect for : Mobile demonstrations : Show your smart home setup without cables Seasonal check : Place decoration without power outlet Temporary events : No wiring required for short-term installations Flexible placement : Test different locations without USB limitations Backup power : Continuous operation during power failure Daily Scene Activation : Morning/Evening Routines with a Single Press Emergency control : Activate alarm without power dependency Less suitable for : Live streaming controls : 10 seconds wake-up time too long Gaming macros : Instant response required Frequent multi-button actions : Double/triple press only works when device is awake Real-time monitoring : Continuous-active applications consume battery quickly Technical specifications Type : Add-on battery module (battery not included) Function : Replaces standard back cover, adds battery support Connector : PH 2.0 (2-pin) for external battery Maximum battery dimensions : 80mm x 30mm x 8mm Recommended battery : 3.7V lithium-ion, 2800 mAh with BMS Charging method : Onboard via USB-C port of BTN-1 (with battery connected) Charging while in use : Yes, fully functional while charging Battery monitoring : Real-time via Home Assistant ESPHome (with battery connected) Sleep mode : Automatically activated when battery is used Wake-up time : ~10 seconds after sleep mode (when using battery) Installation : Tool-free, replaces standard back panel Compatibility : Exclusively for BTN-1 Macro Deck Material : Durable plastic Where to buy battery Suitable batteries with a PH 2.0 connector are available from various online suppliers. Search terms : "3.7V lithium battery PH 2.0 connector 2800mAh" or "LiPo battery PH2.0" Always check : Dimensions: Maximum 80mm x 30mm x 8mm Voltage: 3.7V (single cell lithium-ion or LiPo) Connector: PH 2.0 (2-pin) with correct polarity BMS: Battery must have built-in protection circuit Capacity: 2800mAh recommended for long battery life Frequently Asked Questions Does the Battery Cap come with a battery? No , the Battery Cap doesn't come with a battery . It's an add-on module that