{"product_id":"mindray-replacement-battery-38v-1800mah-li-polymer","title":"Mindray LI11I002A Medical Device Compatible Battery 3.8V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMindray LI11I002A — 3.8V Li-Polymer Replacement Battery (LI11I002A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 1800mAh lithium-polymer battery replaces the Mindray OEM part LI11I002A. It fits Mindray portable patient monitoring equipment that uses this cell configuration. Voltage is 3.8V and capacity is 1800mAh (6.84Wh) — matched to the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMindray monitor compatibility:\u003c\/strong\u003e\n    Mindray portable monitors using the LI11I002A share a common power architecture — same voltage rail, connector footprint, and BMS handshake protocol. Swapping a degraded original cell for this replacement does not require firmware changes or recalibration.\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 bench with a compatible Mindray monitor. The BMS accepted the new cell, completed its initialisation handshake, and did not flag a battery fault on startup or during load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle self-test requirement:\u003c\/strong\u003e\n    After installation, allow the device to complete its power-on self-test without interrupting it. Mindray monitors run a BMS verification sequence at startup — cutting power mid-sequence triggers a false battery fault that persists 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\"\u003eDevice not completing boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eMindray portable monitors run a power-on self-test that includes a BMS learn step. A new cell that hasn't completed one full charge-discharge cycle may not meet the BMS's internal state-of-charge threshold at boot. The monitor interprets this as an unqualified battery and stalls or loops during startup. Run one full charge-discharge cycle before placing the device back into clinical use — after that cycle, the BMS records the cell's capacity baseline and boot completes normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSelf-test failure persisting after confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the device alarms or logs a battery fault after a new cell has been fully charged, the BMS has not yet validated the cell against its stored OEM chemistry profile. This is not a defective cell — it's the BMS applying a conservative pass threshold until it completes a learn cycle. Charge the battery to full, allow the device to discharge under normal use to below 3.4V, then recharge fully. After one complete cycle the self-test clears and the fault does not return.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381369995354,"sku":"BWCS-MRL110MD-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381370028122,"sku":"BWCS-MRL110MD-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381370060890,"sku":"BWCS-MRL110MD-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MRL110MD-1.webp?v=1778900449","url":"https:\/\/batteryweb.com\/products\/mindray-replacement-battery-38v-1800mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}