{"product_id":"samsung-galaxy-note-replacement-battery-37v-2000mah-li-ion","title":"Samsung Galaxy Note GH43-03640B Replacement Battery 3.7V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy Note GT-N7000 \/ GT-I9220 — 3.7V Li-ion Replacement Battery (GH43-03640B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2000mAh Li-ion cell replacing OEM part GH43-03640B in the Samsung Galaxy Note. It fits the GT-N7000, GT-I9220, SGH-i717, and compatible variants. Install it when the original cell no longer holds charge or causes unexpected shutdowns.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGT-N7000 \/ GT-I9220 platform fit:\u003c\/strong\u003e\n    These models share the same battery bay geometry, connector pinout, and BMS handshake protocol. The GH43-03640B part number spans the full Note first-generation lineup, so one cell covers all variants listed.\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 a GT-N7000 unit. The BMS accepted the cell without fault flags, the fuel gauge IC registered full capacity, and the charge IC reached termination voltage cleanly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging is applied to an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\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\"\u003eThe Galaxy Note's fuel gauge IC stores a discharge curve calibrated to the original cell. A new cell with a slightly different voltage-versus-capacity profile can hit the BMS low-voltage cutoff while the OS still reads 20–30% remaining. The BMS cuts power at 3.0V per cell to protect the lithium chemistry, but the OS hasn't caught up. One full discharge-to-shutdown followed by a full charge corrects the coulomb counter and eliminates this behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone reports wrong battery percentage after cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter replacing the cell, the Galaxy Note's fuel gauge IC is still running the learned model from the degraded original battery. Percentage readings can jump erratically or read full charge earlier than expected. The fix is straightforward: drain the phone until it shuts down automatically, then charge uninterrupted to 100% with the screen off. After that single cycle, the coulomb counter recalibrates to the new cell and percentage reporting stabilises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405055131738,"sku":"BWCS-SMN700SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405055164506,"sku":"BWCS-SMN700SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405055197274,"sku":"BWCS-SMN700SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMN700SL-1.webp?v=1779369898","url":"https:\/\/batteryweb.com\/products\/samsung-galaxy-note-replacement-battery-37v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}