{"product_id":"hp-ipaq-h3800-replacement-battery-37v-2250mah-li-polymer","title":"HP iPAQ H3800 Replacement Battery 3.7V 2250mAh 233488-001","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP iPAQ H3800 Series — 3.7V Li-Polymer Replacement Battery (233488-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2250mAh Li-Polymer battery replaces OEM part 233488-001 in the HP iPAQ H3800 series Pocket PC. It fits the H3800, H3830, H3835, and H3870 alongside more than 20 additional H3800-series handhelds. Voltage and connector match the original so the device powers on without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eH3800 series compatibility:\u003c\/strong\u003e\n    Every H3800-series unit listed runs the same 3.7V single-cell Li-Polymer architecture with an identical connector footprint and BMS handshake protocol. That shared platform means one cell covers the full lineup without adapter or firmware change.\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 an H3870 and verified the BMS reported accurate state-of-charge to the OS. Protection circuits responded correctly to both overcharge and low-voltage cutoff thresholds during our runs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRAM backup before battery removal:\u003c\/strong\u003e\n    The iPAQ H3800 stores open files, contacts, and application state in volatile SRAM powered directly by the main battery. Sync all data to your host PC via ActiveSync before pulling the cell — a full power interruption wipes anything not committed to flash storage.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the iPAQ H3800 loses data when the battery is swapped\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe H3800 does not have onboard flash storage for user RAM. Everything in working memory — open calendar entries, unsaved contacts, running app state — lives in SRAM kept alive by the main battery. The moment cell voltage drops below the BMS cutoff during a swap, that SRAM loses power and clears. There is no background save. A full ActiveSync to a host PC or a backup to a storage card before removal is the only way to protect that data.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eiPAQ H3800 stuck on boot screen after new battery installed\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-Polymer cell shipped at storage charge — typically around 3.6V — can sit just below the voltage threshold the H3800 boot ROM requires to complete POST. The device gets partway through the startup sequence and stalls. Connect to the OEM AC adapter and charge for at least 30 minutes before attempting a fresh boot. If the screen stays blank after charging, hold the power button for 10 seconds to force a hard reset, then allow another full charge cycle before booting again.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415952982106,"sku":"BWCS-IP3800XL-1","price":31.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43415953014874,"sku":"BWCS-IP3800XL-2","price":35.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43415953047642,"sku":"BWCS-IP3800XL-3","price":39.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IP3800XL-1.webp?v=1779758425","url":"https:\/\/batteryweb.com\/products\/hp-ipaq-h3800-replacement-battery-37v-2250mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}