{"product_id":"rainin-controller-px-100-replacement-battery-24v-700mah-ni-mh","title":"Rainin PX-100 Replacement Battery 2.4V 700mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRainin Controller PX-100 \/ Pipet-XTM — 2.4V Ni-MH Replacement Battery (17011746)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 700mAh Ni-MH rechargeable battery for the Rainin Controller PX-100 and Pipet-XTM electronic pipette controllers. These handheld devices are used for automated liquid handling in laboratory and clinical environments. The OEM part number is 17011746.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eController PX-100 and Pipet-XTM compatibility:\u003c\/strong\u003e\n    Both models share the same 2.4V two-cell Ni-MH battery architecture, connector pinout, and BMS handshake protocol — a single replacement cell services either platform 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 PX-100 controller. The BMS accepted the cell on the first insertion, completed its voltage verification pass, and held charge without triggering a false-low alarm after one full conditioning cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the controller to complete its full power-on self-test without interruption. The PX-100 runs a BMS verification sequence at startup — cutting power during this window writes a fault flag that persists until the next clean reboot, even if the battery is otherwise functional.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the PX-100 alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe PX-100's charge controller uses a voltage threshold calibrated to a conditioned OEM Ni-MH cell. A new replacement cell has a slightly different internal resistance profile in its first few cycles, which causes the BMS to read terminal voltage as lower than actual state of charge. This triggers the low-battery alarm even when the cell is fully charged. One complete charge-discharge cycle brings the cell's voltage curve into range and clears the false alarm without any manual reset.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eController will not power on after the replacement cell sat uninstalled in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–3% per day when stored outside the device. If the replacement sat long enough, terminal voltage can drop below the PX-100's BMS recovery threshold — typically around 2.0V for a 2-cell pack — and the controller refuses to boot. Place the battery in the charger for a minimum of 15 minutes before insertion; most charge ICs will push a trickle current that lifts the cell above the BMS floor and allows normal startup. If the controller still will not boot, check terminal voltage with a multimeter and confirm the pack reads above 2.1V before proceeding.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381501493338,"sku":"BWCS-BTH630MD-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381501526106,"sku":"BWCS-BTH630MD-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381501558874,"sku":"BWCS-BTH630MD-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BTH630MD-1.webp?v=1778901304","url":"https:\/\/batteryweb.com\/products\/rainin-controller-px-100-replacement-battery-24v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}