{"product_id":"spice-c5300-replacement-battery-37v-1200mah-li-ion","title":"Spice C5300 Compatible Battery SIB-11 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSpice C5300 \/ S3636 \/ QT-52 \/ M6464 — 3.7V Li-ion Replacement Battery (SIB-11 \/ SIB-16)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1200mAh Li-ion replacement battery for the Spice C5300, S3636, QT-52, and M6464 smartphones. It replaces OEM part numbers SIB-11 and SIB-16. Dimensions are 53.00 × 33.90 × 5.70mm — confirm your original battery measurements before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eC5300, S3636, QT-52, and M6464 compatibility:\u003c\/strong\u003e\n    These four models share the same battery bay dimensions, connector pin-out, and 3.7V nominal voltage rail. The BMS on each device accepts the same cell chemistry and charge termination voltage, which is why one part number covers all four.\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 the bench. The BMS accepted the cell without fault flags, reached full charge termination at 4.2V, and held voltage flat under screen-on load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first cycle:\u003c\/strong\u003e\n    On first use after fitting, run one full discharge to auto-shutoff, then charge uninterrupted to 100%. This gives the phone's coulomb counter a clean reference curve against the new cell before it starts reporting percentage readings to the OS.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Spice C5300 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on the C5300 builds its percentage model against the discharge curve of the old cell. When a new cell goes in, that stored curve no longer matches actual cell behaviour. The IC interpolates against stale data and reports inaccurate state-of-charge figures until it recalibrates. One full discharge-to-shutoff followed by an uninterrupted charge cycle overwrites the old curve and re-anchors the gauge to the new cell.\u003c\/p\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 cell voltage drops below the modem or display load threshold faster than the fuel gauge predicted — a voltage cliff the uncalibrated IC did not anticipate. Under peak modem transmit or screen-on current, a fresh cell not yet profiled by the coulomb counter can sag below the SoC cutoff point while the display still reads 25%. After one complete discharge-charge calibration cycle, the gauge tracks the actual voltage curve and the early shutdowns stop. If shutdowns continue past two full cycles, check that cell voltage at rest reads above 3.6V before charging.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404286459994,"sku":"BWCS-DEP215SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404286492762,"sku":"BWCS-DEP215SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404286525530,"sku":"BWCS-DEP215SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DEP215SL-1.webp?v=1779369550","url":"https:\/\/batteryweb.com\/products\/spice-c5300-replacement-battery-37v-1200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}