{"product_id":"samsung-sph-i330-replacement-battery-37v-1600mah-li-ion","title":"BST1089SEB Compatible Battery Samsung SPH-i330 3.7V 1600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung SPH-i330 — 3.7V Li-ion Replacement Battery (BST1089SEB)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1600mAh Li-ion cell built to fit the Samsung SPH-i330 smartphone. It replaces the original BST1089SEB when the factory cell can no longer hold adequate charge for calls, messaging, or basic app use. Voltage and connector match the SPH-i330 battery bay exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSPH-i330 fitment:\u003c\/strong\u003e\n    The SPH-i330 draws from a single-cell 3.7V Li-ion pack with a specific contact layout tied to its charge IC. This cell matches that voltage rail and connector footprint — no adapter or modification needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge passes on the SPH-i330 platform. The BMS responded correctly to charge termination and low-voltage cutoff at each stage without triggering false shutdown events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fuel gauge reset:\u003c\/strong\u003e\n    After fitting this cell, run one complete discharge-to-charge cycle with fast charging disabled. This gives the SPH-i330's fuel gauge IC time to map the new cell's discharge curve before high-current charging begins on an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the SPH-i330 after cell replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe SPH-i330's fuel gauge IC was calibrated to the discharge curve of the original cell. A new cell has a different internal impedance profile, so the IC misreads remaining capacity under load. When the modem fires during a call or the backlight peaks, voltage sags below the BMS cutoff threshold even though the gauge still shows 20–30%. One full discharge-charge cycle without interruption lets the coulomb counter re-anchor to the new cell's actual voltage cliff, typically around 3.4–3.5V under load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSPH-i330 not powering on after the replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the BST1089SEB cell dropped below approximately 2.5V before installation, the BMS enters a protective lockout state and the phone will not power on. Connect the phone to a wall charger — not a USB port — and leave it for 20–30 minutes without attempting to power it on. The charge IC needs to trickle current into the cell to bring it above the BMS re-enable threshold, typically 2.8–3.0V, before normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409454530650,"sku":"BWCS-SMI330SL-1","price":25.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43409454563418,"sku":"BWCS-SMI330SL-2","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43409454596186,"sku":"BWCS-SMI330SL-3","price":31.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMI330SL-big.webp?v=1779579736","url":"https:\/\/batteryweb.com\/products\/samsung-sph-i330-replacement-battery-37v-1600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}