{"product_id":"ntt-docomo-ht1100-replacement-battery-37v-1200mah-li-polymer","title":"NTT DoCoMo HT1100 NIKI160 Compatible Battery 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNTT DoCoMo HT1100 — 3.7V Li-Polymer Replacement Battery (NIKI160)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1200mAh Li-Polymer battery for the NTT DoCoMo HT1100 smartphone. It replaces part number NIKI160 and fits the original battery compartment without modification. Capacity is 4.44Wh — matching the stock specification from the original hardware.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHT1100 fitment:\u003c\/strong\u003e\n    The HT1100 uses a compact Li-Polymer cell with a specific connector orientation and BMS pinout tied to NTT DoCoMo's charge IC. This replacement uses the same NIKI160 form factor — same dimensions at 44.36 × 46.50 × 6.38mm — so the BMS handshake with the charge controller completes correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on a controlled test rig, confirming the BMS protection trips at the correct low-voltage cutoff and that the cell accepts a full charge without thermal event or premature termination.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this replacement, run one complete discharge-to-charge cycle with fast charging disabled if your charger supports it. The HT1100's fuel gauge IC was calibrated to the old cell's discharge curve — one full cycle against the new cell resets the coulomb counter baseline and stops percentage readings from drifting.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the HT1100 shuts down suddenly at 20–30% battery remaining\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff failure. The original aged cell can no longer hold its voltage under load from the modem radio or display backlight, so it drops below the BMS cutoff threshold — even though the fuel gauge still reads 20–30%. The replacement cell has a healthier internal resistance, so it sustains voltage under that same load. After one full recalibration cycle, the percentage reading will align more accurately with actual remaining capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone shows incorrect battery percentage after fitting the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC stores a learned discharge curve from the old cell. When a new cell is fitted, the stored curve no longer matches actual cell behaviour, so percentage readings jump or read high and drop fast. This is not a fault with the replacement — it is the coulomb counter working from stale calibration data. Discharge the phone fully until it powers off, then charge it uninterrupted to 100% to force the fuel gauge to recalculate against the new cell. After that cycle, readings stabilise.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405186531418,"sku":"BWCS-TP5500SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405186564186,"sku":"BWCS-TP5500SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405186596954,"sku":"BWCS-TP5500SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TP5500SL-1.webp?v=1779370333","url":"https:\/\/batteryweb.com\/products\/ntt-docomo-ht1100-replacement-battery-37v-1200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}