{"product_id":"banno-gt03b-replacement-battery-37v-1000mah-li-ion","title":"Nokia N95 GT03B Replacement Battery 3.7V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBANNO GT03B — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1000mAh Li-ion cell that replaces the original battery in the Nokia N95 and N95 8GB. It fits directly into the same battery bay, using the same three-contact connector. Capacity is 1000mAh (3.7Wh), matching the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNokia N95 and N95 8GB compatibility:\u003c\/strong\u003e\n    Both handsets share the same battery bay dimensions, contact layout, and BMS handshake protocol — that is why one cell covers both variants. The physical footprint is 53.00 × 33.90 × 5.70mm, matching the original cavity without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on an N95 unit. The BMS accepted the cell on first connection, charge termination triggered correctly at 4.2V, and the fuel gauge IC registered the cell without throwing a battery error code.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installing this cell, run one complete discharge down to automatic shutdown, then charge uninterrupted to 100% before normal use. The N95's fuel gauge IC calibrates its coulomb counter against that first full cycle — skipping it causes the percentage reading to drift or jump in the first few days.\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 N95 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe N95 uses a fuel gauge IC that builds a discharge curve model over time. When the original cell ages, that model drifts to match the old cell's degraded behaviour. A new cell has a different internal resistance and a steeper voltage-capacity curve at the bottom end, so the IC maps percentage incorrectly until it relearns. One full discharge-to-shutdown followed by a complete charge resets the coulomb counter reference point. After that cycle, percentage readings stabilise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on a freshly installed cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC still holds the old cell's cutoff voltage model. The N95's processor and WCDMA modem draw a combined current spike during calls or data sessions that the IC's stale model interprets as a low-voltage event, triggering shutdown even though the cell still has charge remaining. It is not a fault in the cell — it is a calibration mismatch. Perform one full discharge cycle to let the IC reset its low-voltage threshold to the new cell's actual 3.0V cutoff floor.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409498931290,"sku":"BWCS-NK5CMX-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409498964058,"sku":"BWCS-NK5CMX-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409498996826,"sku":"BWCS-NK5CMX-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NK5CMX-1.webp?v=1779579814","url":"https:\/\/batteryweb.com\/products\/banno-gt03b-replacement-battery-37v-1000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}