{"product_id":"jbl-clip-3-replacement-battery-37v-1000mah-li-polymer","title":"JBL Clip 3 Replacement Battery 3.7V 1000mAh L0721-LF","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eJBL Clip 3 \/ Clip 3AN \/ Clip 3SAND — 3.7V Li-Polymer Replacement Battery (L0721-LF)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1000mAh Li-Polymer battery replaces OEM part L0721-LF in the JBL Clip 3, Clip 3AN, and Clip 3SAND portable Bluetooth speakers. It fits the compact 54.50 × 34.00 × 5.00mm cell cavity inside the speaker housing. When the original cell swells or holds little charge, this replacement restores full audio and wireless function.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClip 3, Clip 3AN, Clip 3SAND compatibility:\u003c\/strong\u003e\n    All three variants share the same internal cell format, connector orientation, and BMS handshake protocol — one part number covers the whole family without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on a Clip 3 unit. The BMS accepted the cell without fault codes, maintained stable voltage through high-volume audio output, and balanced current draw across both the amplifier and Bluetooth radio without tripping cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    After fitting this battery, run the speaker down until it powers off on its own, then charge it uninterrupted to 100% before use. Skipping this step causes the onboard fuel gauge to read inaccurate charge levels from the first session.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Clip 3 reads full charge but audio cuts out after extended play\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Clip 3 combines amplifier current draw and Bluetooth radio draw on the same cell simultaneously. As the cell ages or after a replacement without recalibration, the fuel gauge can lag behind actual cell voltage. The speaker's protection circuit sees the real voltage drop below threshold and shuts down audio output — even though the indicator still shows bars. Running a full discharge-to-cutoff cycle after battery replacement resets the gauge baseline and eliminates this mismatch.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB charging not starting on a deeply discharged Clip 3\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf a Clip 3 sits unused for weeks, the cell can drop below the USB charging acceptance threshold — typically under 2.5V on a Li-Polymer cell at this capacity. The charger handshake never completes, so the indicator shows nothing and the speaker stays off. Connect the speaker to a 5V USB source and leave it for 15–20 minutes without disconnecting — the BMS recovery circuit applies a trickle pre-charge to bring the cell back above 3.0V before switching to normal CC\/CV charge. If the indicator still does not respond after 30 minutes, the original cell has likely failed and replacement is the next step.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416225611866,"sku":"BWCS-JMC300SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416225644634,"sku":"BWCS-JMC300SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416225677402,"sku":"BWCS-JMC300SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-JMC300SL-1.webp?v=1779760990","url":"https:\/\/batteryweb.com\/products\/jbl-clip-3-replacement-battery-37v-1000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}