{"product_id":"jbl-clip-4-replacement-battery-37v-1100mah-li-polymer","title":"JBL Clip 4 Compatible Battery GSP903052 3.7V 1100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eJBL Clip 4 — 3.7V Li-Polymer Replacement Battery (GSP903052)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1100mAh Li-Polymer cell replaces the original GSP903052 battery in the JBL Clip 4 portable Bluetooth speaker. It fits the Clip 4 and AN0402-JK0009880 variants. Dimensions are 49.50 × 30.00 × 8.50mm — measure your original before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClip 4 and AN0402-JK0009880 compatibility:\u003c\/strong\u003e\n    Both models run the same single-cell Li-Polymer configuration at 3.7V nominal, use the same flex-ribbon connector footprint, and communicate with the same fuel gauge IC — so one cell covers both variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on a Clip 4 unit. The onboard BMS accepted charge immediately, balanced correctly at 4.2V, and the protection circuit tripped cleanly at the low-voltage cutoff without hanging the firmware.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMonthly discharge cycle for the Clip 4:\u003c\/strong\u003e\n    The Clip 4 spends most of its life clipped to a bag or desk, constantly topped off. Let the speaker discharge below 20% at least once a month before recharging — constant partial charging without a full discharge cycle causes fuel gauge drift and accelerates capacity fade on the cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBluetooth dropping at high volume on the Clip 4\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAt maximum volume, the Clip 4 amplifier and Bluetooth radio draw current simultaneously. On a degraded or low-state-of-charge cell, this combined load causes voltage sag past the radio's operating floor — the Bluetooth stack drops to protect itself. The fix is straightforward: a fresh cell with lower internal resistance holds the voltage rail steady under combined amp and radio load. If dropout persists on a new battery, check that the USB-C port is clean and the charger is delivering at least 5V 1A to ensure the cell is reaching a full 4.2V before use.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAudio distorting before the battery indicator reaches empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe amplifier inside the Clip 4 clips its output signal when the supply voltage sags — this produces audible distortion at moderate-to-loud volume levels well before the indicator shows low battery. The root cause is elevated internal resistance in an aged cell: the resting voltage reads normal, but voltage collapses under load. Replacing the cell restores a flat discharge curve. After fitting this battery, confirm the speaker reaches 4.2V at end of charge with a multimeter probe on the charging contacts before reassembly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416207687770,"sku":"BWCS-JMC400SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416207720538,"sku":"BWCS-JMC400SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416207753306,"sku":"BWCS-JMC400SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-JMC400SL-1.webp?v=1779760824","url":"https:\/\/batteryweb.com\/products\/jbl-clip-4-replacement-battery-37v-1100mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}