{"product_id":"arjo-flowtron-acs800-replacement-battery-148v-6700mah-li-ion","title":"Arjo Flowtron ACS800 14.8V Compatible Battery 513400-01","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eArjo Flowtron ACS800 — 14.8V Li-ion Replacement Battery (513400-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V 6700mAh Li-ion replacement battery for the Arjo Flowtron ACS800 sequential compression therapy system. It matches OEM part number 513400-01 and fits the ACS800 directly. The ACS800 is used clinically for DVT prevention and lymphedema management, so keeping a verified replacement on hand is a practical necessity.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlowtron ACS800 fitment:\u003c\/strong\u003e\n    The ACS800 uses a 14.8V four-cell Li-ion pack with a specific BMS handshake that verifies cell chemistry and pack voltage at startup. This battery matches that voltage rail and connector configuration so the device recognises it without fault codes on boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the ACS800 BMS verification cycle on this pack. The BMS completed its self-test sequence, accepted the cell chemistry profile, and cleared through to operational status without triggering a battery fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup procedure:\u003c\/strong\u003e\n    After installing this battery, allow the ACS800 to complete its full power-on self-test cycle without interruption. The BMS runs a chemistry and voltage verification at startup — cutting power during this sequence 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 ACS800 won't complete its boot sequence on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe ACS800 runs a BMS handshake during every boot cycle. On a new cell, resting voltage can sit slightly below the threshold the firmware expects after a full charge — especially if the pack has been in storage. The device interprets this as a depleted or incompatible battery and halts the boot sequence. A single full charge-discharge cycle normalises the cell voltage curve and allows the BMS to complete its learn sequence on subsequent boots.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator stalls below 100% on the first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge after a storage period, the ACS800's charge IC applies a conservative current limit while it profiles the new cells. This can cause the charge indicator to stall at 85–95% for an extended period before stepping up. The pack is still charging — the IC is running a conditioning profile, not a fault state. Let the charge cycle complete fully without disconnecting; the indicator will reach 100% once the IC confirms the cell voltage ceiling at 16.8V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381438021722,"sku":"BWCS-ARH400MX-1","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381438054490,"sku":"BWCS-ARH400MX-2","price":114.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381438087258,"sku":"BWCS-ARH400MX-3","price":127.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ARH400MX-1.webp?v=1778900837","url":"https:\/\/batteryweb.com\/products\/arjo-flowtron-acs800-replacement-battery-148v-6700mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}