{"product_id":"invivo-research-hl20-rotaflow-replacement-battery-24v-5000mah-ni-mh","title":"Invivo Research HL20 Rotaflow 24V Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eInvivo Research HL20 Rotaflow — 24V Ni-MH Replacement Battery (702755)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 24V, 5000mAh Ni-MH replacement battery for the Invivo Research HL20 Rotaflow fluid management device. Part number 702755 covers the HL20 Rotaflow used in laboratory and clinical fluid circulation applications. Capacity is rated at 120Wh and matches the OEM specification directly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHL20 Rotaflow battery platform:\u003c\/strong\u003e\n    The HL20 Rotaflow runs a 24V Ni-MH chemistry with a BMS that validates cell voltage signature at startup. This battery uses the same voltage rail and connector configuration as the original 702755, so the BMS handshake completes without errors on installation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge and load conditions matching the HL20 Rotaflow's draw profile. The BMS accepted the cell on the first full charge cycle and passed the internal verification check without flagging a fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eStartup sequence care:\u003c\/strong\u003e\n    After installing this battery, allow the HL20 Rotaflow to complete its full power-on self-test without interruption. Medical devices run BMS verification at startup, and cutting power mid-sequence can trigger 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 HL20 Rotaflow alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe HL20 Rotaflow BMS uses a voltage threshold calibrated to the OEM cell's charge curve. A new replacement cell has a slightly different charge profile in its first few cycles, and the BMS can read the resting voltage as below threshold even when the cell is fully charged. This is not a fault with the battery — it resolves after one complete charge-discharge cycle. Run a full cycle before returning the device to clinical use.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHL20 Rotaflow will not power on after the battery has been in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge during storage, and if the pack voltage drops below roughly 20V, the HL20 Rotaflow BMS enters deep-discharge lockout and will not initiate a boot sequence. The fix is a slow recovery charge — connect the device to mains power and leave it on charge for a minimum of four hours before attempting to power on. If the device still does not respond after a full charge, measure pack voltage at the terminals; it should read at least 22V before the BMS will clear the lockout.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381416656986,"sku":"BWCS-MAT755MD-1","price":150.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381416689754,"sku":"BWCS-MAT755MD-2","price":178.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381416722522,"sku":"BWCS-MAT755MD-3","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MAT755MD-1.webp?v=1778900662","url":"https:\/\/batteryweb.com\/products\/invivo-research-hl20-rotaflow-replacement-battery-24v-5000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}