{"product_id":"hp-ipaq-hx4700-replacement-battery-37v-2000mah-li-ion","title":"HP iPAQ HX4700 Replacement Battery 3.7V 290483-B21","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP iPAQ HX4700 Series — 3.7V Li-ion Replacement Battery (290483-B21)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2000mAh Li-ion cell replaces the original battery in the HP iPAQ HX4700, HX4705, HX4715, and HX4800 pocket PCs. These Windows Mobile PDAs run entirely on this single cell — when it degrades, the device loses charge fast or fails to hold enough voltage to boot. Capacity is rated at 7.4Wh, matching the original HP specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHX4700 series fit:\u003c\/strong\u003e\n    The HX4700, HX4705, HX4715, and HX4800 share the same battery bay geometry, connector pinout, and BMS handshake protocol — one cell covers all four models without modification.\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 HX4700 unit and confirmed the BMS accepted the cell without fault codes, held a stable voltage curve through the discharge, and triggered the low-battery warning at the correct threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRAM power warning before swap:\u003c\/strong\u003e\n    Sync all open data to a host PC before removing the battery. The HX4700 stores active application state and unsaved files in SRAM powered directly by this cell — a full power loss wipes that memory instantly, and there is no recovery path for data that was not synced.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the HX4700 won't boot after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe HX4700 boot sequence checks cell voltage before allowing the processor to initialise. If the replacement battery arrives partially discharged — common after months in warehouse storage — the device sees insufficient voltage and refuses to start, showing a blank screen or a low-battery indicator that won't clear. Connect the iPAQ to its AC adapter and charge for at least 30 minutes before pressing the power button. The cell needs to reach approximately 3.4V before the boot sequence will proceed.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFaster-than-expected drain when running wireless sync or Bluetooth\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe HX4700's Wi-Fi and Bluetooth radios pull significantly more current than the device draws in standby or basic PIM use. On a 2000mAh cell, running an active wireless sync session while the backlight is at full brightness stresses the battery well beyond its idle draw. If the device shows charge dropping quickly during sync, disable Bluetooth while Wi-Fi is active — the two radios competing simultaneously cause voltage sag that the BMS can interpret as a depleted cell. Keep backlight brightness at 50% or lower during wireless operations to reduce the combined load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415951900762,"sku":"BWCS-HX4700SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415951933530,"sku":"BWCS-HX4700SL-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415951966298,"sku":"BWCS-HX4700SL-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HX4700SL-1.webp?v=1779758425","url":"https:\/\/batteryweb.com\/products\/hp-ipaq-hx4700-replacement-battery-37v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}