{"product_id":"hp-touchsmart-tm2-2200-replacement-battery-111v-4400mah-li-ion","title":"HP TouchSmart tm2-2200 11.1V Replacement Battery 582215-241","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP TouchSmart tm2-2200 Series — 11.1V Li-ion Replacement Battery (582215-241)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V, 4400mAh (48.84Wh) Li-ion battery fits the HP TouchSmart tm2-2200, tm2t, tm2t-1000, and tm2t-2100 CTO series touchscreen laptops. It replaces OEM part numbers including 582215-241, 586021-001, HSTNN-DB0Q, HSTNN-XB0Q, and WD547AA. The cell slots into the original battery bay using the factory connector — no modification needed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003etm2 series compatibility:\u003c\/strong\u003e\n    The tm2 and tm2t share the same 11.1V three-cell architecture and connector pinout across model variants. The BMS in each unit expects the same voltage rail and communication protocol, so this cell works across the full TouchSmart tm2 lineup without reconfiguration.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a tm2t-1000 unit through charge, full discharge, and recharge cycles. The BMS accepted the cell on first insertion, the charge controller reached float without fault codes, and the BIOS registered a valid battery present signal immediately on boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on tm2 units:\u003c\/strong\u003e\n    After fitting this cell, run it down to hibernate cutoff under normal load — screen on, Wi-Fi active — then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell's actual capacity curve and clears the inaccurate health warning that appears after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you swap a cell in the tm2 series, the BIOS retains EEPROM data from the old battery. It compares the new cell's reported state against a degraded baseline and flags the health as poor even when the replacement is fresh. This is a firmware calibration issue, not a fault with the cell itself. Running one full discharge-to-hibernate followed by a complete uninterrupted charge gives the BIOS enough data to overwrite the old cycle count and capacity figures. After that single learn cycle, the health indicator should return to normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down at 20–30% charge shown on the gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't calibrated against the new cell and is reading voltage from a shifted curve. Under full load — CPU boost, backlit touchscreen, Wi-Fi active simultaneously — the cell voltage drops faster than the uncalibrated gauge expects, and the system hits the low-voltage shutdown threshold while still showing charge remaining. The fix is calibration: let the battery discharge naturally under real use until hibernate kicks in, then charge fully to 100% without interruption. After two to three cycles the gauge IC locks onto the correct curve and shutdown at false percentages stops.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409802821722,"sku":"BWCS-HTM200NB-1","price":100.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409802854490,"sku":"BWCS-HTM200NB-2","price":115.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409802887258,"sku":"BWCS-HTM200NB-3","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HTM200NB-1.webp?v=1779580992","url":"https:\/\/batteryweb.com\/products\/hp-touchsmart-tm2-2200-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}