{"product_id":"alcatel-ot-s988w-replacement-battery-37v-900mah-li-ion","title":"Alcatel OT-S988W Replacement Battery S11B03A 3.7V 900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlcatel OT-S988W — 3.7V Li-ion Replacement Battery (S11B03A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 900mAh Li-ion battery for the Alcatel OT-S988W smartphone. It replaces OEM part number S11B03A. Use it when the original cell no longer holds a usable charge or fails to power the phone through a normal day.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOT-S988W fit:\u003c\/strong\u003e\n    The S11B03A connector, contact layout, and physical dimensions — 69.30 × 38.30 × 4.20mm — match the OT-S988W battery bay exactly. The BMS communicates over the same two-wire thermal line the phone expects, so the charge IC accepts the cell without throwing a fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, standby, and screen-on load on the OT-S988W. The BMS held the 4.2V charge ceiling correctly and the protection circuit tripped at the expected low-voltage cutoff without hanging the phone.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst cycle after installation:\u003c\/strong\u003e\n    After fitting this cell, disable any fast-charge mode and run one full discharge-charge cycle at standard rate. This lets the fuel gauge IC recalibrate its coulomb counter against the new cell's discharge curve before high-current charging is applied to 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 OT-S988W after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe OT-S988W's fuel gauge IC builds a discharge model from the original cell's voltage-versus-capacity curve. A new cell has a slightly different curve, so the IC miscalculates the remaining charge and cuts power before the battery is actually empty. This is not a fault in the replacement cell. One full discharge-charge cycle at standard rate forces the IC to rebuild its model against the new curve. After that cycle, the reported percentage tracks the actual charge state correctly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone 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 S11B03A cell dropped below roughly 2.5V, the BMS enters a protection lockout and blocks the charge circuit from applying full current. The phone shows nothing on screen and appears completely dead. Connect the phone to a wall charger — not a USB port — and leave it for 15–20 minutes without pressing the power button. The charge IC applies a trickle pre-charge to bring the cell above the lockout threshold, after which normal charging and boot resume.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405117489242,"sku":"BWCS-ACP30SL-1","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405117522010,"sku":"BWCS-ACP30SL-2","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405117554778,"sku":"BWCS-ACP30SL-3","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ACP30SL_1.webp?v=1779369992","url":"https:\/\/batteryweb.com\/products\/alcatel-ot-s988w-replacement-battery-37v-900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}