{"product_id":"dopod-u1000-replacement-battery-37v-2000mah-li-ion","title":"Dopod U1000 ATHE160 Replacement Battery 3.7V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDopod U1000 — 3.7V Li-ion Replacement Battery (ATHE160)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2000mAh Li-ion battery for the Dopod U1000 Windows Mobile smartphone. It replaces OEM part numbers ATHE160 and 35H00081-00M. If your U1000 no longer holds a charge or shuts down unexpectedly, this is the direct cell replacement.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eU1000 platform fit:\u003c\/strong\u003e\n    The U1000 uses a fixed form factor battery with a specific connector pinout tied to the device's charge IC. This cell matches the 73.39 × 54.60 × 5.50mm physical envelope and the 3.7V nominal voltage rail the board expects — no modification needed.\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 U1000 unit. The BMS handshake completed correctly, the charge IC accepted the cell without fault codes, and voltage held steady under combined screen and radio load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first installation, run one full discharge to low battery warning, then charge uninterrupted to 100%. This gives the U1000's fuel gauge IC one complete reference cycle against the new cell's discharge curve before it starts reporting accurate percentages.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the U1000 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe U1000 uses a fuel gauge IC that builds a discharge model over time based on the old cell's internal resistance and capacity curve. When you install a new cell, that stored model no longer matches reality. The IC reads voltage and applies the old curve, so the percentage shown can be 20–30% off in either direction. One full discharge-charge cycle forces the IC to reset its reference points against the new cell. After that cycle, percentage accuracy returns to normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% remaining on the U1000\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell cannot sustain voltage under peak load — typically when the modem, display, and processor pull current simultaneously. The cell voltage drops below the BMS cutoff threshold even though the fuel gauge still shows charge remaining. It is a voltage sag issue, not a capacity issue. If this occurs on a new cell, complete two full discharge-charge cycles to allow the fuel gauge IC to recalibrate; the shutdowns typically stop once the IC's model aligns with the new cell's actual low-voltage curve, around 3.4–3.5V under load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405164642394,"sku":"BWCS-DU1000SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405164675162,"sku":"BWCS-DU1000SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405164707930,"sku":"BWCS-DU1000SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DU1000SL-1.webp?v=1779370333","url":"https:\/\/batteryweb.com\/products\/dopod-u1000-replacement-battery-37v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}