{"product_id":"braun-perfusor-compact-replacement-battery-36v-1500mah-ni-mh","title":"Braun Perfusor Compact 3.6V Ni-MH Replacement Battery 3\/N-600AAK","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBraun Perfusor Compact — 3.6V Ni-MH Replacement Battery (3\/N-600AAK)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.6V, 1500mAh Ni-MH battery replaces the original cell in the Braun Perfusor compact infusion pump. It also fits the Syringe Pump Compact platform. Capacity figure is taken directly from product specification — 5.4Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePerfusor compact and Syringe Pump Compact platform:\u003c\/strong\u003e\n    Both devices share the same 3.6V battery rail, connector pinout, and BMS handshake protocol. A single cell format covers both because the charge management circuit accepts the same NiMH chemistry and thermistor signal from either unit.\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 the Perfusor compact platform. The BMS accepted the cell, completed its verification sequence, and logged no fault codes during the test run.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, let the device complete its full power-on self-test without interruption. The Perfusor compact runs a BMS verification routine at startup. Cutting power during that sequence triggers a false battery fault that stays latched until the next complete 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 Perfusor compact flags a battery fault on a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Perfusor compact's charge IC applies a conservative acceptance threshold calibrated to a conditioned OEM cell. A fresh replacement hasn't completed a full charge-discharge cycle, so its internal resistance profile sits slightly outside the expected window. The BMS interprets this as a marginal cell and raises a fault flag. Running one complete charge-discharge cycle before clinical use brings the cell's resistance profile into the accepted range and clears the flag.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator not reaching 100% on first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn first charge, the Perfusor compact's charge IC caps input to a new cell at a reduced rate until it confirms the cell's thermal response is stable. This is normal behaviour — not a fault in the battery or charger. The indicator will stop short of 100% and may hold there for an extended period. Complete a full cycle anyway, then recharge from empty. The second charge cycle should reach 100% with the cell now within the IC's verified acceptance window, confirmed at approximately 4.35V terminal across the cell at top of charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381446246490,"sku":"BWCS-BRA125MD-1","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381446279258,"sku":"BWCS-BRA125MD-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381446312026,"sku":"BWCS-BRA125MD-3","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BRA125MD-1.webp?v=1778900876","url":"https:\/\/batteryweb.com\/products\/braun-perfusor-compact-replacement-battery-36v-1500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}