{"product_id":"i-stat-printer-pr-300-replacement-battery-48v-2000mah-ni-mh","title":"I-Stat Printer PR-300 Replacement Battery 4.8V 2000mAh 04P74-03","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eI-Stat Printer PR-300 — 4.8V Ni-MH Replacement Battery (04P74-03)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 4.8V, 2000mAh Ni-MH replacement battery for the I-Stat Printer PR-300. The PR-300 is a portable thermal printer used in hospitals and point-of-care settings to output results from blood gas and electrolyte analyzers. This cell matches the OEM part number 04P74-03 and fits the original battery bay without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePR-300 compatibility:\u003c\/strong\u003e\n    The PR-300 uses a fixed 4.8V Ni-MH chemistry that ties directly into the device's charge IC and BMS handshake. Substituting a different chemistry or voltage will trigger a persistent battery fault regardless of charge state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, load, and BMS communication checks on the PR-300 platform. The BMS accepted the cell, completed its verification pass, and the charge indicator progressed normally without fault codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap power-on sequence:\u003c\/strong\u003e\n    After installing this battery, let the PR-300 complete its full power-on self-test without interruption. The device runs a BMS verification step at startup — cutting power during this window causes a false battery fault that persists until the next clean reboot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the PR-300 triggers a low-battery alarm on a freshly charged replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe PR-300's charge IC sets its pass threshold based on OEM cell history data stored in the BMS. A new cell has no cycle history, so the BMS treats it as unverified and flags low battery even at full charge. This clears after one complete charge-discharge cycle, which lets the BMS calibrate its capacity estimate against the actual cell. Do not use the printer for clinical reporting until that first full cycle is complete.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePR-300 not powering on after the replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–3% per day in storage. If this battery sat long enough before installation, its resting voltage may have dropped below the PR-300's BMS recovery threshold — typically around 4.0V for a 4.8V pack — and the device will not boot. Connect the printer to mains power and leave it on charge for a minimum of 12 hours before attempting to power on. Once the cell recovers above the BMS floor, the device will boot normally and the self-test will run.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381458698330,"sku":"BWCS-IMP300MD-1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381458731098,"sku":"BWCS-IMP300MD-2","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381458763866,"sku":"BWCS-IMP300MD-3","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IMP300MD-1.webp?v=1778900983","url":"https:\/\/batteryweb.com\/products\/i-stat-printer-pr-300-replacement-battery-48v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}