{"product_id":"t-mobile-mda-touch-plus-replacement-battery-37v-2200mah-li-ion","title":"T-Mobile MDA Touch Plus Replacement Battery NIKI160 3.7V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eT-Mobile MDA Touch Plus — 3.7V Li-ion Replacement Battery (NIKI160)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2200mAh lithium-ion battery for the T-Mobile MDA Touch Plus Windows Mobile smartphone. It fits the original battery bay and connects via the stock connector without modification. Capacity and voltage match the OEM specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMDA Touch Plus fit:\u003c\/strong\u003e\n    The MDA Touch Plus uses a fixed-voltage 3.7V single-cell architecture. The replacement cell matches that voltage rail, the physical footprint at 46.71 × 44.08 × 11.28mm, and the BMS handshake the device's charge IC expects on connection.\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-charge sequence and confirmed the BMS held charge termination correctly. The protection circuit tripped as expected on simulated over-discharge, preventing cell damage below the cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, run one complete discharge to auto-shutoff before recharging. The MDA Touch Plus fuel gauge IC carries its calibration curve from the old cell into the new one — a full cycle resets the reference point and brings the percentage readout back into accuracy.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the MDA Touch Plus shuts down suddenly at 20–30% after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe MDA Touch Plus fuel gauge IC stores a discharge curve calibrated to the original cell's internal resistance profile. When a new cell with different impedance characteristics goes in, the IC underestimates remaining capacity. Under load from the screen or radio stack, voltage sags below the protection threshold before the displayed percentage reaches zero. The BMS reads this as a low-voltage fault and cuts power. One full discharge-charge cycle lets the fuel gauge IC rebuild its reference map against the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMDA Touch Plus not powering on after the battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLithium-ion cells self-discharge during storage. If this battery shipped or was stored for an extended period, the cell voltage may have dropped below 2.5V — the threshold where the BMS locks out to prevent damage to the chemistry. The device will show no response on the power button and may not register on the charger immediately. Connect it to the original charger and leave it for 15–20 minutes; the BMS includes a trickle-charge recovery path that will begin raising cell voltage back above the 2.9V re-initialisation threshold before normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405180043354,"sku":"BWCS-TP5500XL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405180076122,"sku":"BWCS-TP5500XL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405180108890,"sku":"BWCS-TP5500XL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TP5500XL-1.webp?v=1779370333","url":"https:\/\/batteryweb.com\/products\/t-mobile-mda-touch-plus-replacement-battery-37v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}