{"product_id":"sandisk-sansa-clip-zip-replacement-battery-37v-260mah-li-polymer","title":"SanDisk Sansa Clip Zip Compatible Battery 3.7V 260mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSanDisk Sansa Clip Zip \/ Clip+ — 3.7V Li-Polymer Replacement Battery (PR-303038PL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 260mAh lithium-polymer battery for the SanDisk Sansa Clip Zip and Sansa Clip+ (Clip Plus) portable media players, including the SDMX18R-008GK-A57. It matches the original PR-303038PL cell at 36.45 x 30.75 x 3.20mm — a precise physical fit inside the compact housing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClip Zip and Clip+ compatibility:\u003c\/strong\u003e\n    Both players share the same internal battery bay dimensions, connector polarity, and 3.7V nominal voltage rail. A single cell revision covers the full range of these models 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 Zip unit. The BMS accepted charge current without fault codes, and the protection circuit tripped correctly at the low-voltage cutoff threshold before any cell damage could occur.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap charging protocol for the Clip Zip:\u003c\/strong\u003e\n    After installing a new cell, connect the player to a charger before attempting to power it on. The Clip Zip's firmware can misread a fresh cell's resting voltage and refuse to boot. A 30-minute pre-charge clears that state.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping after a cell swap on the Clip Zip\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Sansa Clip Zip uses a voltage-threshold method to estimate charge level — it has no dedicated fuel gauge IC. After a cell swap, the firmware's stored reference points no longer match the new cell's discharge curve. You'll see the indicator jump between 100% and a lower value in the first few cycles. Run two or three full charge-to-cutoff cycles and the displayed percentage stabilises against the new cell's actual voltage behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePlayback cutting out before the battery indicator shows empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Clip Zip's audio amplifier draws a brief current spike during output, which causes voltage to sag at the end of a discharge cycle. When the cell is nearly depleted, that sag briefly dips below the BMS cutoff threshold and the player shuts down — even though the indicator hasn't reached zero. This is a protection cut, not a faulty battery. Charge the unit immediately and the cell will recover. If cutouts begin happening much earlier in the cycle, the cell has aged past its usable capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381328969818,"sku":"BWCS-SDS180SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381329002586,"sku":"BWCS-SDS180SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381329035354,"sku":"BWCS-SDS180SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SDS180SL-1.webp?v=1778900030","url":"https:\/\/batteryweb.com\/products\/sandisk-sansa-clip-zip-replacement-battery-37v-260mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}