{"product_id":"blackberry-z10-replacement-battery-37v-1800mah-li-ion","title":"LS1 BlackBerry Z10 Replacement Battery 3.7V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlackBerry Z10 Series — 3.7V Li-ion Replacement Battery (LS1 \/ BAT-47277-003)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1800mAh Li-ion replacement battery for the BlackBerry Z10 smartphone, including the Z10 4G and Z10 4G LTE variants. It uses OEM part references LS1, ACC-51546-201, BAT-47277-003, and BAT-47277-001. The cell slots into the standard Z10 battery bay and connects to the device's charge and fuel gauge circuitry directly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eZ10 family compatibility:\u003c\/strong\u003e\n    The Z10, Laguna, Z10 4G, and Z10 4G LTE all share the same battery bay dimensions and connector pinout. The LS1 designation covers the full range, so no adapter or modification is needed across these variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through a full discharge and charge sequence on a Z10 unit. The BMS accepted the charge handshake without error, and the fuel gauge IC tracked state-of-charge across the complete curve without flagging a fault condition.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first installation, disable fast charging if your Z10 supports it and run one complete discharge-charge cycle at standard rate. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes current into 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 Z10 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Z10's fuel gauge IC stores a learned discharge curve from the previous cell. When you install a new cell, the stored curve no longer matches the actual voltage profile of the replacement. Under high-draw conditions — active LTE radio, screen at full brightness — the cell voltage drops faster than the gauge expects, and the phone shuts down to protect the cell even though the reported percentage looks safe. One full discharge-charge cycle forces the coulomb counter to re-map the curve against the new cell. After that cycle, the shutdown threshold aligns correctly with actual cell capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBlackBerry Z10 showing wrong percentage after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe OS percentage reading comes from the fuel gauge IC, not from the cell directly. After a swap, the IC is still referencing calibration data from the old, degraded cell. This causes the display to read 15–20% higher or lower than the actual state-of-charge. Run the phone down to the automatic shutdown point, then charge uninterrupted to 100% without removing the cable. That single full cycle resets the coulomb counter baseline and brings the percentage display back in line with the actual cell voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404325060698,"sku":"BWCS-BRZ100XL-1","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404325093466,"sku":"BWCS-BRZ100XL-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404325126234,"sku":"BWCS-BRZ100XL-3","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BRZ100XL-1.webp?v=1779369760","url":"https:\/\/batteryweb.com\/products\/blackberry-z10-replacement-battery-37v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}