{"product_id":"hp-tablet-7-1800-replacement-battery-37v-4100mah-li-polymer","title":"HP Tablet 7 1800 Replacement Battery 3.7V 4100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Tablet 7 1800 \/ Slate 7 Series — 3.7V Li-Polymer Replacement Battery (HSTNH-B14C-S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 4100mAh Li-Polymer battery for the HP Tablet 7 1800 and Slate 7 series, including the Slate 7 1800, Slate 7 Voice Tab, and Slate 7 Voice Tab Dual SIM. It replaces OEM part numbers HSTNH-B14C-S, HSTNH-B20C-S, 739691-001, and 10979176-00. Swap this in when the original cell no longer holds a charge or the tablet shuts down unexpectedly under load.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSlate 7 series compatibility:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell architecture, connector pinout, and BMS handshake protocol — which is why one cell covers the full lineup. The fuel gauge IC communicates over a dedicated line; a cell mismatch here causes instant rejection at boot.\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 Slate 7 hardware. The BMS accepted the new cell without fault codes, and the charge IC stepped through CC\/CV phases cleanly with no thermal events or negotiation failures.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    After installing this battery, run the tablet down to automatic shutoff under normal screen-on use — do not force-power-off. Then charge uninterrupted to 100% without unplugging. This single full cycle lets the fuel gauge IC re-anchor its calibration to the new cell's actual capacity curve.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTablet shutting down at 15–25% remaining after battery replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated to the old cell's voltage-capacity curve. The new cell's voltage drops more steeply near the bottom of the curve than the degraded original did — so the IC interprets a normal mid-discharge voltage as critically low and triggers a protective shutdown. It is not a fault with the replacement cell. Run one complete discharge to automatic cutoff, then charge uninterrupted to 100% — after that cycle the IC recalibrates and shutdowns at low percentage stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFast charge not available after battery swap on Slate 7\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome Slate 7 units show only standard charge rates after a battery replacement, even when using the original charger. The charge controller stores negotiation state from the previous cell and needs one accepted full charge cycle to re-establish the handshake with the new cell's BMS. Plug in using the original HP adapter and allow a full uninterrupted charge to 100%. If fast charge still does not activate after that cycle, confirm the adapter output — the HP Slate 7 charger should supply 5V at a minimum of 1.0A to trigger the higher charge rate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426051588186,"sku":"BWCS-HPE700SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426051620954,"sku":"BWCS-HPE700SL-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426051653722,"sku":"BWCS-HPE700SL-3","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPE700SL-1.webp?v=1779930218","url":"https:\/\/batteryweb.com\/products\/hp-tablet-7-1800-replacement-battery-37v-4100mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}