{"product_id":"motorola-mc21-replacement-battery-37v-1200mah-li-polymer","title":"Motorola MC21 Barcode Scanner Replacement Battery 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMotorola MC2100 \/ MC2180 — 3.7V Li-Polymer Replacement Battery (82-105612-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1200mAh lithium-polymer cell replaces the OEM pack in Motorola MC21, MC2100, and MC2180 handheld barcode scanners. These units are standard in retail and warehouse pick-and-pack operations. Cross-references cover OEM part numbers 82-105612-01, BTRY-MC21EAB0E, and 82-150612-01.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMC21 series fit:\u003c\/strong\u003e\n    The MC21, MC2100, and MC2180 share the same battery bay geometry, 3.7V power rail, and BMS handshake protocol. One cell fits all three variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack in an MC2180 cradle and on-device. The BMS cycled correctly through charge and discharge, and the scanner firmware recognised the cell without prompting an error state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-shift cradle protocol:\u003c\/strong\u003e\n    After installing, seat the scanner in its cradle for a full charge cycle before the first pick shift. Scan trigger inrush current peaks when the cell is near minimum charge — a pre-charged pack prevents false BMS trips when the first shift starts heavy.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCradle showing a charging error on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA charging error on a freshly installed cell almost always points to contact resistance at the dock, not a fault in the battery itself. Warehouse dust and oxidation build up on the gold contact pads on the base of the scanner and inside the cradle cup. Wipe both sets of contacts with a dry lint-free cloth, reseat the scanner firmly, and the cradle should recognise the pack within 10 seconds. If the error persists, check the cradle contact pins for bending — they need to sit flush to maintain the handshake voltage above 3.0V.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eScanner losing wireless connection during rapid scan bursts\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MC2100 and MC2180 draw simultaneously from the radio module and the scan trigger during a burst sequence. On a degraded or low-charge cell, this combined inrush causes a voltage sag that trips the BMS and briefly drops the wireless link. The scanner may show a disconnected icon or miss ACKs back to the host system. Charge the replacement pack fully before field use — a cell starting above 3.6V handles the combined draw without sagging below the BMS cutoff threshold.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43324741484634,"sku":"BWCS-MC210BL-1","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43324741517402,"sku":"BWCS-MC210BL-2","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43324741550170,"sku":"BWCS-MC210BL-3","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MC210BL-1.webp?v=1778123056","url":"https:\/\/batteryweb.com\/products\/motorola-mc21-replacement-battery-37v-1200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}