{"product_id":"htc-u-play-replacement-battery-385v-2400mah-li-polymer","title":"HTC U Play B2PZM100 Replacement Battery 3.85V 2400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHTC U Play — 3.85V Li-Polymer Replacement Battery (B2PZM100)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 2400mAh Li-Polymer replacement battery for the HTC U Play smartphone, including the TD-LTE, TD-LTE Dual SIM, and Alpine variants. It matches OEM part numbers B2PZM100 and 35H00270-00M. When the original cell can no longer hold a usable charge, this replacement restores full electrical capacity to the device.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eU Play variant compatibility:\u003c\/strong\u003e\n    The standard U Play, TD-LTE, TD-LTE Dual SIM, and Alpine all share the same battery bay geometry, connector pinout, and BMS handshake protocol — one cell fits every variant 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 a full charge-discharge cycle on U Play hardware. The BMS accepted the new cell without throwing a battery authentication error, and charge current stepped correctly through trickle, CC, and CV phases.\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 complete one full discharge-charge cycle at standard current. 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 U Play after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a defective cell. A new Li-Polymer cell has a steeper voltage drop in the lower state-of-charge range than the aged cell the fuel gauge IC was calibrated to. When the modem or display pulls a high-current burst, the cell's terminal voltage drops below the BMS cutoff threshold before the OS percentage reaches zero. One complete discharge-charge cycle at standard current recalibrates the coulomb counter. After that cycle, shutdowns at 20–30% stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB fast charge not activating on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eHTC's charge IC performs a handshake with the BMS before allowing elevated charge current. On the very first cycle with a new cell, the BMS may respond conservatively and the phone defaults to standard 5V charging. This is normal behaviour — not a fault. Complete one full standard-current charge cycle first. On the second charge cycle, fast charge protocol negotiation completes correctly and high-current charging resumes at the expected rate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392047218778,"sku":"BWCS-HTU120XL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392047251546,"sku":"BWCS-HTU120XL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392047284314,"sku":"BWCS-HTU120XL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HTU120XL-1.webp?v=1779143124","url":"https:\/\/batteryweb.com\/products\/htc-u-play-replacement-battery-385v-2400mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}