{"product_id":"makeblock-mbot-replacement-battery-37v-1700mah-li-polymer","title":"Makeblock mBot 3.7V 1700mAh Li-Polymer Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMakeblock mBot \/ mBot Ranger — 3.7V Li-Polymer Replacement Battery (14030)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 1700mAh Li-Polymer battery replaces part number 14030 in the Makeblock mBot and mBot Ranger programmable robots. It powers the onboard microcontroller, Bluetooth module, and drive motors. Capacity matches the original spec — 6.29Wh total.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003emBot and mBot Ranger compatibility:\u003c\/strong\u003e\n    Both robots share the same battery bay dimensions, connector pinout, and 3.7V power rail. The mBot Ranger draws slightly more current under dual-motor load, but the 1700mAh cell handles that demand within normal operating parameters.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the mBot's charge circuit and confirmed the BMS communicates correctly with the onboard protection logic — charge termination and low-voltage cutoff both triggered at expected thresholds.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eProgram export before battery removal:\u003c\/strong\u003e\n    The mBot stores user-created programs in RAM backed by the main battery. Pulling the battery without exporting first erases all stored code. Export your programs via the mBlock app before you disconnect the old battery.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the mBot loses stored programs after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe mBot's microcontroller uses battery-backed volatile memory for user programs loaded from the mBlock editor. When the battery drops out — even briefly — that memory loses power and clears. This is not a fault with the replacement battery. Before disconnecting the old battery, open the mBlock app, connect via Bluetooth, and save your project file to your device.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor movement becomes imprecise after fitting a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eServo and encoder calibration values on the mBot Ranger are session-dependent — a full power cycle resets them to factory defaults. After fitting a new battery and powering on, the robot may drift or overshoot turns that previously tracked correctly. Run the motor calibration routine in the mBlock app before testing any movement-based programs. Correct calibration restores positioning accuracy to within normal tolerance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416087167066,"sku":"BWCS-MKR140SL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416087199834,"sku":"BWCS-MKR140SL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416087232602,"sku":"BWCS-MKR140SL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MKR140SL-1.webp?v=1779760241","url":"https:\/\/batteryweb.com\/products\/makeblock-mbot-replacement-battery-37v-1700mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}