{"product_id":"kinetic-concepts-315b-vacuum-assisted-closure-replacement-battery-12v-2300mah-sealed-lead-acid","title":"KINETIC CONCEPTS 315B Replacement Battery 12V 2300mAh SLA","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKINETIC CONCEPTS 315B Vacuum Assisted Closure — 12V Sealed Lead Acid Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 12V, 2300mAh sealed lead acid battery replaces the internal backup cell in the KINETIC CONCEPTS 315B Vacuum Assisted Closure system. The 315B is a portable wound therapy device that applies controlled negative pressure to promote healing — continuous operation matters in both clinical and home care settings. Voltage and capacity match the OEM specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e315B VAC platform fit:\u003c\/strong\u003e\n    The 315B shares a fixed 12V SLA architecture with a connector and housing sized to this cell's 178 × 66.6 × 35mm footprint. The BMS expects sealed lead acid chemistry — substituting lithium chemistry here will cause immediate BMS rejection and charge fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the 315B's charge circuit and confirmed the BMS accepted the cell, completed charge termination without fault, and held voltage at load within the device's operating threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the 315B to complete its full power-on self-test without interruption. The device runs a BMS verification sequence at startup — cutting power mid-cycle logs 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 315B alarms low battery with a freshly charged replacement installed\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 315B's BMS uses charge acceptance rate and internal resistance to verify battery state — not resting voltage alone. A new SLA cell has higher internal resistance before its first full cycle, which causes the BMS to flag the cell as degraded even when it's fully charged. This is a BMS calibration behaviour, not a cell fault. Run one complete charge-discharge cycle on the 315B before relying on it clinically — after that cycle, the BMS reads the cell correctly and the alarm clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003e315B fails to complete boot sequence after battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSealed lead acid cells self-discharge at roughly 3–5% per month. A cell stored for several months can drop below 10.5V, which is the BMS recovery threshold on the 315B — the device will not initiate boot below this voltage. Connect the device to mains power and leave it on charge for a minimum of 12 hours before attempting to power on from battery alone. If the charger LED does not change state within 30 minutes, check resting cell voltage directly — anything below 10V indicates sulphation and the cell will not recover.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381386412122,"sku":"BWCS-SHT160MD-1","price":310.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381386444890,"sku":"BWCS-SHT160MD-2","price":370.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381386477658,"sku":"BWCS-SHT160MD-3","price":415.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SHT160MD-1.webp?v=1778900511","url":"https:\/\/batteryweb.com\/products\/kinetic-concepts-315b-vacuum-assisted-closure-replacement-battery-12v-2300mah-sealed-lead-acid","provider":"BatteryWeb","version":"1.0","type":"link"}