{"product_id":"dji-asb01-replacement-battery-387v-2600mah-li-polymer","title":"DJI BSX01 Wireless Microphone Replacement Battery 3.87V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDJI ASB01 Wireless Microphone Charging Case — 3.87V Li-Polymer Replacement Battery (BSX01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.87V, 2600mAh lithium-polymer battery for the DJI ASB01 wireless microphone system. It fits the ASB01 transmitter body and the DJI MIC wireless microphone Charging Case. OEM part numbers BSX01 and BSX01-2600-3.87 both cross-reference this cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eASB01 and MIC Charging Case compatibility:\u003c\/strong\u003e\n    Both devices share the same cell format, voltage rail, and connector pinout. The BMS handshake on each unit expects a 3.87V nominal Li-Polymer cell — any deviation in voltage or connector orientation trips a fault state and blocks charging.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the ASB01's charge management circuit and monitored BMS response at cutoff thresholds. The protection circuit tripped correctly at both the low-voltage floor and the charge-complete ceiling, with no thermal anomalies during the full charge cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eTransmitter storage between shoots:\u003c\/strong\u003e\n    If the ASB01 sits unused for several weeks, discharge the cell to around 50% before storing. The DJI MIC system's standby draw is low, but leaving a fully charged Li-Polymer cell dormant for extended periods accelerates capacity fade faster than partial-state storage does.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the DJI ASB01 shows a charging error immediately after a new battery is fitted\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe ASB01 charging case uses a BMS handshake to verify the cell before allowing current to flow. If the replacement cell's resting voltage is significantly lower than expected — common after shipping — the charger may flag a fault before the first charge cycle begins. Seat the battery fully, confirm the contacts are clean, then connect the case to power and wait two minutes. The BMS will attempt a trickle pre-charge to bring the cell above the threshold voltage before switching to normal charge mode.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDJI MIC transmitter loses RF lock on the receiver immediately after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery in the ASB01 without a proper power cycle can leave the transmitter's RF module in an undefined state, causing the receiver to lose pairing lock. This is not a pairing corruption — the transmitter simply needs to reinitialise its RF stack from a cold boot. Power the transmitter fully off, wait ten seconds, then power it back on. The receiver should re-acquire the link within a few seconds without any re-pairing steps.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381523152986,"sku":"BWCS-DJX001SL-1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381523185754,"sku":"BWCS-DJX001SL-2","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381523218522,"sku":"BWCS-DJX001SL-3","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DJX001SL-1.webp?v=1778901369","url":"https:\/\/batteryweb.com\/products\/dji-asb01-replacement-battery-387v-2600mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}