{"product_id":"o2-xda-xphone-iim-replacement-battery-37v-2200mah-li-ion","title":"O2 XDA Xphone IIm Replacement Battery BTR5600B 3.7V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eO2 XDA Xphone IIm — 3.7V Li-ion Replacement Battery (BTR5600B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V Li-ion replacement battery rated at 2200mAh (8.14Wh) for the O2 XDA Xphone IIm. The XDA Xphone IIm is a mid-2000s Windows Mobile PDA and smartphone combo used for email, contacts, and calendar management. It fits directly in the original battery bay and connects to the same contact points as the factory cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eXDA Xphone IIm compatibility:\u003c\/strong\u003e\n    The XDA Xphone IIm uses a single-cell Li-ion configuration at 3.7V nominal. OEM part numbers BTR5600B, ST26B, and ST26A all reference the same physical cell and connector format for this device.\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 compatible hardware. The BMS reached full charge cutoff at 4.2V and held stable voltage through moderate load — typical of Windows Mobile OS use with active sync and radio.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRAM data before battery removal:\u003c\/strong\u003e\n    Sync all open data to a host computer before pulling the battery. The XDA Xphone IIm stores active application state and unsaved files in volatile RAM powered by the main cell — a full power removal wipes that memory instantly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eXDA Xphone IIm data loss after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe XDA Xphone IIm relies on its main battery to keep SRAM contents alive. Unlike flash storage, SRAM loses all data the moment power drops to zero — contacts, calendar entries, and installed apps stored in RAM are gone. There is no capacitor buffer long enough to survive a full battery pull. Before swapping the cell, perform a full ActiveSync backup to a PC and confirm the sync completed successfully.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eXDA Xphone IIm not booting after new battery installed\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA freshly shipped Li-ion cell may arrive at a storage charge of around 3.0–3.3V. The XDA Xphone IIm boot sequence draws a surge of current that the BMS may block if voltage is below its minimum operating threshold. The device will appear dead — no screen, no response to the power button. Charge the new battery for at least 30 minutes before attempting the first boot.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415951081562,"sku":"BWCS-DC585XL-1","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43415951114330,"sku":"BWCS-DC585XL-2","price":34.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43415951147098,"sku":"BWCS-DC585XL-3","price":37.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DC585XL-big.webp?v=1779758425","url":"https:\/\/batteryweb.com\/products\/o2-xda-xphone-iim-replacement-battery-37v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}