The Dell JM33W is a cable-connected RTC/CMOS BIOS coin-cell battery assembly for laptops. It supplies backup power to the BIOS and helps retain system settings while the laptop is off.
Its CR2032 cell is rated at 3 V and 220 mAh. These specifications help identify the battery assembly needed for a replacement.
JM33W is listed for Dell Inspiron, Latitude and Vostro laptop families. Check the specific laptop’s compatibility before choosing it; the listing does not name individual models.
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