{"product_id":"dji-ronin-rs4-mini-replacement-battery-74v-3400mah-li-ion","title":"DJI Ronin RS4 Mini 7.4V Replacement Battery 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDJI Ronin RS4 Mini — 7.4V Li-ion Replacement Battery (HX724-3100-7.2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 3400mAh (25.16Wh) lithium-ion battery replaces the original power cell in the DJI Ronin RS4 Mini compact gimbal stabiliser. It slots into the RS4 Mini's battery bay and feeds the three-axis brushless motor system that keeps footage stable during handheld shooting. Voltage and connector match the OEM spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRS4 Mini motor system compatibility:\u003c\/strong\u003e\n    The RS4 Mini runs three brushless motors off a shared 7.4V rail. All three axes draw simultaneously during aggressive moves, so the BMS on this cell is rated to handle combined peak current without tripping on a standard pan-tilt sequence.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery through full initialisation on the RS4 Mini and cycled it through repeated three-axis stabilisation sequences. The BMS held through motor-start surge on each axis and maintained stable output voltage under combined load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBalance before powering on:\u003c\/strong\u003e\n    Balance the gimbal properly with your camera attached before switching on. An unbalanced rig forces the motors to work constantly against gravity, drawing sustained high current across all three axes — this accelerates cell depletion and can trigger BMS overcurrent cutoff during fast moves.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGimbal not initialising correctly after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe RS4 Mini's IMU runs a startup calibration sequence the moment power is applied. If the battery voltage is low from storage, the IMU may not complete initialisation cleanly, leaving the gimbal in a locked or drifting state. This is not a motor fault — it is the controller failing to establish a stable reference during boot. Charge the replacement battery to at least 7.2V before first use and keep the gimbal still on a flat surface during the 5-second startup sequence.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eStabilisation drift before the battery indicator shows low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe RS4 Mini's battery indicator reads cell voltage at rest, not under load. When all three motors draw simultaneously — common during fast tracking shots — the cell voltage sags below the steady-state reading, and the controller reduces motor torque to protect the system. The result looks like drift or softness in the footage well before the low-battery warning appears. If you see stabilisation degrade during active shooting, check cell voltage under load; below 6.8V under combined motor draw, swap the battery before the next shot.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43306856153178,"sku":"BWCS-DJR400RH-1","price":48.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43306856185946,"sku":"BWCS-DJR400RH-2","price":57.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43306856218714,"sku":"BWCS-DJR400RH-3","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DJR400RH_1.webp?v=1777768812","url":"https:\/\/batteryweb.com\/products\/dji-ronin-rs4-mini-replacement-battery-74v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}