{"product_id":"vodafone-replacement-battery-37v-900mah-li-ion","title":"Vodafone SEBA01 Replacement Battery 3.7V 900mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVodafone SEBA01 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 900mAh Li-ion replacement battery for Vodafone mobile handsets using the SEBA01 cell. Original batteries in this class lose usable capacity after 300–500 charge cycles, leaving the phone unable to hold charge through a normal day. This cell restores that capacity to factory spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSEBA01 platform fitment:\u003c\/strong\u003e\n    Vodafone handsets sharing this part number use a matched voltage rail and connector pinout. The BMS on these devices checks cell impedance on first boot — a cell outside the accepted range will trigger a charging fault. This replacement passes that handshake.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge termination, overvoltage protection, and short-circuit cutoff. The BMS capped charge at 4.2V and tripped the protection circuit correctly under load fault conditions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell — preventing erratic percentage readings from the first charge onward.\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 replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. The old cell had higher internal impedance near depletion, so the IC learned to cut off early. When the new cell hits the same state-of-charge region, the phone reads the voltage profile as critically low and shuts down — even though capacity remains. One full discharge-charge cycle without interruption resets the coulomb counter and corrects the threshold. After that cycle, shutdowns at 20–30% should stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone will not power on after the battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells discharged below 2.5V per cell trigger a BMS lockout — the protection circuit opens and the phone will not respond to a charger or the power button. Connect the phone to a wall charger, not a USB port, and leave it for 20–30 minutes without pressing anything. The charger's trickle current slowly raises cell voltage above the 2.5V threshold, which prompts the BMS to re-initialise and allow normal charging to resume. If the phone still shows no response after 30 minutes, check that the charge cable seats fully in the port.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409469112410,"sku":"BWCS-ERV800SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409469145178,"sku":"BWCS-ERV800SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409469177946,"sku":"BWCS-ERV800SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ERV800SL-1.webp?v=1779579784","url":"https:\/\/batteryweb.com\/products\/vodafone-replacement-battery-37v-900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}