{"product_id":"sony-clie-peg-s300-replacement-battery-37v-850mah-li-ion","title":"Sony Clie PEG-S300 Replacement Battery LIS1161 3.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony Clie PEG-S300 Series — 3.7V Li-ion Replacement Battery (LIS1161)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 850mAh Li-ion battery for the Sony Clie PEG-S300, PEG-S320, PEG-S360, and PEG-S500 series PDAs. It replaces part number LIS1161. These early 2000s Palm OS handhelds lose battery capacity quickly after years of storage, and this cell restores normal operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS300 \/ S320 \/ S360 \/ S500 platform fit:\u003c\/strong\u003e\n    These four Clie models share the same LIS1161 cell, connector pinout, and BMS communication protocol. The same voltage rail powers the Palm OS RAM, CPU, and backlight across all four, so one cell covers the full group 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 a Clie S-series unit. The BMS accepted the charge curve without fault flags, held the 3.7V nominal rail steady during active use, and the OS reported battery level correctly throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eSync before you swap:\u003c\/strong\u003e\n    The Clie PEG-S300 stores contacts, calendar entries, and open application state in volatile RAM. That RAM is powered directly by the main battery. Do a full HotSync to your host computer before removing the old cell — anything not synced will be gone the moment power drops.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Clie PEG-S300 loses saved data after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eUnlike flash-based devices, the PEG-S300 uses SRAM for main storage. SRAM is fast but requires constant power to hold its contents. The moment the battery is removed, anything stored there — contacts, memos, app data — is erased. There is no internal backup capacitor large enough to cover a full cell swap. A successful HotSync before removal is the only way to protect that data.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eClie PEG-S300 stuck on boot screen after fitting a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new cell ships at a partial state of charge — often below 3.5V. The PEG-S300 boot sequence draws a spike of current to initialise the display and RAM, and if the cell voltage is too low, the unit stalls or loops on the startup screen. Connect the device to its cradle or USB charger and charge for at least 30 minutes before attempting to power on. Once the cell reaches approximately 3.6V, the boot sequence completes normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415945609306,"sku":"BWCS-S500SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415945642074,"sku":"BWCS-S500SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415945674842,"sku":"BWCS-S500SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-S500SL-1.webp?v=1779758397","url":"https:\/\/batteryweb.com\/products\/sony-clie-peg-s300-replacement-battery-37v-850mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}