{"product_id":"svp-600-replacement-battery-37v-900mah-li-ion","title":"BBA-07 Nokia 6100 Compatible Battery 3.7V 900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSVP Nokia 600 \/ 700 Series — 3.7V Li-ion Replacement Battery (BBA-07)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 900mAh Li-ion cell replaces the BBA-07 battery in Nokia 600, 700, AGG-023, AGG-052, and related handsets. It restores power to the phone when the original cell has degraded past holding a usable charge. Dimensions are 53.00 × 34.00 × 4.80mm — measure your bay before ordering if your unit has been repaired before.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNokia 600\/700 platform fit:\u003c\/strong\u003e\n    These models share the same battery bay geometry, connector pinout, and BBA-07 cell spec. The voltage rail sits at 3.7V nominal, and the BMS handshake expects that same nominal to enable charging and discharge protection.\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 Nokia 600-series handset. The BMS accepted the cell on first insertion, protection cutoffs triggered correctly at low voltage, and charge termination fired at the expected 4.2V ceiling.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, complete one full discharge-to-charge cycle without interruption. This lets the fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before the OS starts displaying percentage readings.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Nokia 600 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe phone's fuel gauge IC stores a discharge curve calibrated to the original cell. When a new cell goes in, the stored curve no longer matches the actual voltage-versus-capacity profile of the replacement. The OS reads a voltage point on the old curve and reports a percentage that doesn't reflect real charge remaining. One complete uninterrupted discharge and full charge cycle forces the coulomb counter to relearn the new cell's curve and corrects the displayed percentage.\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 sharply under load — GSM modem transmission bursts and screen peaks pull current the cell cannot sustain at that state of charge. The BMS reads the voltage sag as a low-cell condition and cuts power before the fuel gauge shows 0%. It is not a faulty cell — it is an uncalibrated gauge reading a voltage cliff incorrectly. Run one full discharge cycle until the phone shuts off naturally, then charge to 100% without interruption to let the gauge anchor its low-end voltage threshold at the correct point, typically around 3.2–3.3V under load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405022822490,"sku":"BWCS-NK4CHL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405022855258,"sku":"BWCS-NK4CHL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405022888026,"sku":"BWCS-NK4CHL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NK4CHL-1.webp?v=1779369842","url":"https:\/\/batteryweb.com\/products\/svp-600-replacement-battery-37v-900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}