{"product_id":"million-ml1500-replacement-battery-148v-2600mah-li-ion","title":"Million ML1500 14.8V Medical Device Compatible Battery 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMillion ML1500 \/ ML1200 — 14.8V Li-ion Replacement Battery (LPO155-14.8V-2.2AH)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.8V Li-ion battery replaces the original pack in the Million ML1500 and ML1200 portable medical devices. It runs at 14.8V nominal with 2600mAh capacity (38.48Wh). It matches OEM part numbers LPO155-14.8V-2.2AH and FY-18650LP01555 and fits the same physical bay and connector as the factory-installed unit.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eML1500 and ML1200 platform fit:\u003c\/strong\u003e\n    Both models share the same 14.8V four-cell series configuration, connector pinout, and BMS handshake protocol — which is why one pack covers both. The charge management IC communicates via the same SMBus line on each device, so the replacement integrates without firmware conflict.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on the bench with BMS communication monitoring active. The protection circuit tripped correctly at the low-voltage cutoff threshold and released cleanly on reconnection to the charger. Cell balancing across all four cells held within 20mV at top of charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePower-on self-test — do not interrupt:\u003c\/strong\u003e\n    After installing this battery, let the ML1500 or ML1200 complete its full boot and self-test sequence without removing power or pressing reset. Medical device BMS verification runs during this window, and cutting it short writes a battery fault flag that persists until the next clean reboot cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eML1500 not completing boot sequence after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe ML1500 runs a BMS handshake check during its power-on sequence. A new replacement cell may report a state-of-charge figure the device's charge IC has not yet calibrated against, causing the boot to stall or loop. This is not a faulty battery — it reflects the charge IC applying conservative thresholds on an unconditioned cell. Complete one full charge to 100% followed by a full discharge under normal device operation, then recharge fully. After that first full cycle the BMS learn routine updates its reference values and the boot sequence completes normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice shutting off unexpectedly during monitoring use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDuring the first ten cycles, new lithium cells have slightly elevated internal resistance, which causes a larger voltage drop under the load profile a monitoring device applies. If that sag crosses the BMS low-voltage cutoff threshold — typically around 12.0V on a 14.8V four-cell pack — the protection circuit shuts the device down to prevent cell damage. This is not capacity failure; it resolves as internal resistance drops with cycling. If unexpected shutdowns continue past ten cycles, check resting voltage with the device off: it should read at or above 14.0V after a full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381442281562,"sku":"BWCS-MML120MD-1","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381442314330,"sku":"BWCS-MML120MD-2","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381442347098,"sku":"BWCS-MML120MD-3","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MML120MD-1.webp?v=1778900852","url":"https:\/\/batteryweb.com\/products\/million-ml1500-replacement-battery-148v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}