{"product_id":"siemens-infinium-cleo-replacement-battery-72v-1300mah-li-ion","title":"Siemens Infinium Cleo 7.2V Replacement Battery B04021205","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSiemens Infinium Cleo — 7.2V Li-ion Replacement Battery (B04021205)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.2V, 1300mAh Li-ion battery replaces the OEM cell in the Siemens Infinium Cleo auditory implant processor. It matches the original B04021205 specification exactly — same voltage, same form factor, same connector. Capacity is rated at 9.36Wh as drawn from product data, not estimated from runtime.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInfinium Cleo platform fit:\u003c\/strong\u003e\n    The Cleo's BMS communicates with the cell over a dedicated charge-verification line. This battery carries the correct cell chemistry and internal resistance profile to pass that handshake without triggering a mismatch fault on startup.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and load discharge on a Cleo unit. The BMS accepted the cell on the first charge cycle, held charge through full discharge without a mid-cycle cutoff, and cleared the self-test flag on boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup protocol:\u003c\/strong\u003e\n    After fitting this battery, let the Cleo complete its full power-on self-test without interrupting the sequence. Medical device BMS verification runs at startup — cutting power during that window sets a false battery fault that won't clear until the next full 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 Infinium Cleo shows a low-battery alarm directly after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Cleo's charge IC applies a conservative acceptance threshold tuned to aged OEM cells. A new cell has a slightly different internal resistance curve on its first few cycles, and the BMS reads that as incomplete charge. This isn't a fault with the battery — it's the BMS comparing the new cell's signature against its stored OEM baseline. One full charge-discharge cycle recalibrates that baseline and the alarm clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eInfinium Cleo not powering on after the replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the cell voltage drops below approximately 2.5V per cell, the Cleo's BMS trips its deep-discharge protection lockout and the device won't boot. Place the battery on charge for a minimum of two hours before attempting power-on — most charge ICs apply a trickle recovery current at this voltage level. If the charge indicator doesn't activate within 15 minutes of connecting the charger, disconnect, wait 30 seconds, and reconnect to re-trigger the charge IC's recovery routine.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381443199066,"sku":"BWCS-SML205MD-1","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381443231834,"sku":"BWCS-SML205MD-2","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381443264602,"sku":"BWCS-SML205MD-3","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SML205MD-1.webp?v=1778900853","url":"https:\/\/batteryweb.com\/products\/siemens-infinium-cleo-replacement-battery-72v-1300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}