{"product_id":"telstra-f952-replacement-battery-37v-1300mah-li-ion","title":"Telstra F952 Compatible Battery Li3713T42P3h444865 3.7V 1300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTelstra F952 \/ V880 — 3.7V Li-ion Replacement Battery (Li3713T42P3h444865)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1300mAh Li-ion cell replaces the original battery in the Telstra F952, F950, V880, and N73 smartphones. It matches the OEM part numbers Li3713T42P3h444865 and Li3712T42P3h444865. Physical dimensions are 43.50 × 47.00 × 6.10mm — confirm these against your existing cell before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eF952 \/ V880 platform compatibility:\u003c\/strong\u003e\n    These models share the same battery bay dimensions, connector pinout, and BMS handshake protocol, which is why both OEM part numbers cross-reference to the same physical cell.\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 F952 platform. The BMS accepted the cell without fault codes, and protection circuitry tripped correctly at low-voltage cutoff.\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 full discharge down to automatic shutdown, then charge uninterrupted to 100%. This lets the fuel gauge IC map the new cell's discharge curve before it begins tracking capacity under normal load.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the F952 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe F952 uses a fuel gauge IC that builds its capacity model from the previous cell's coulomb-counting history. When a new cell goes in, that stored model no longer matches the actual discharge curve of the replacement cell. The gauge reads voltage and maps it against the old curve, so reported percentage drifts from real state-of-charge. One complete discharge-to-shutdown followed by a full uninterrupted charge cycle forces the IC to rebuild its model against the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–25% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell voltage drops sharply under load — typically during a call, screen-on navigation, or background sync — even though the gauge still shows charge remaining. The cell hits the BMS low-voltage cutoff faster than the gauge predicts because the fuel gauge IC hasn't recalibrated yet. It is not a faulty cell. Run two full discharge-charge cycles without fast charging enabled, then recheck. If shutdowns persist past cycle two, measure resting cell voltage with a multimeter — a healthy cell at 25% reported charge should read above 3.6V at rest.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405093601370,"sku":"BWCS-ZTE950SL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405093634138,"sku":"BWCS-ZTE950SL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405093666906,"sku":"BWCS-ZTE950SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTE950SL-1.webp?v=1779369970","url":"https:\/\/batteryweb.com\/products\/telstra-f952-replacement-battery-37v-1300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}