{"product_id":"svp-cybersnap-901-replacement-battery-37v-750mah-li-ion","title":"SVP CyberSnap-901 Replacement Battery 3.7V 750mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSVP CyberSnap-901 Series — 3.7V Li-ion Replacement Battery (GBLi885-7)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 750mAh Li-ion cell for the SVP CyberSnap-901 and CyberSnap-LS smartphones. It also fits the DC-12V and DC-12V-2 models sharing the same battery bay and connector. Capacity is 2.78Wh, matching the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCyberSnap-901 and LS platform fit:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell architecture, connector pinout, and BMS handshake protocol. The same physical cell fits all units in this series without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on the CyberSnap-901 platform and monitored BMS communication throughout charge and discharge. The protection circuit responded correctly to end-of-charge and low-voltage cutoff thresholds on both cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first cycle:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-charge cycle. The fuel gauge IC needs a full uninterrupted cycle to build an accurate discharge curve against the new cell before high-current charging begins.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the CyberSnap-901 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC stores a learned discharge curve for the original cell. A new cell with a slightly different internal resistance profile will cause the coulomb counter to misread state-of-charge from the first power-on. The phone may show 80% while the cell is actually near 50%, or jump several percentage points between screen-on and screen-off. One full discharge to auto-shutdown followed by an uninterrupted charge to 100% forces the IC to rewrite its reference curve against the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% remaining on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the modem or display draws a load spike the cell cannot sustain at that state-of-charge. A fresh 750mAh cell at 30% still holds roughly 3.65V at rest, but under peak modem transmit load, voltage sags below the BMS cutoff threshold — typically 3.0V — and the phone shuts down instantly. The fuel gauge IC then reports a false percentage because it never saw the voltage collapse coming. Charge the phone to 100% and run the fuel gauge recalibration cycle described above before drawing any sustained load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409476943962,"sku":"BWCS-NK5BXL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409476976730,"sku":"BWCS-NK5BXL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409477009498,"sku":"BWCS-NK5BXL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NK5BXL-1.webp?v=1779579814","url":"https:\/\/batteryweb.com\/products\/svp-cybersnap-901-replacement-battery-37v-750mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}