{"product_id":"shure-glxd1-replacement-battery-37v-1100mah-li-ion","title":"Shure SB902 GLXD1 Replacement Battery 3.7V 1100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eShure GLXD1 \/ GLXD2 GLX-D Digital Wireless — 3.7V Li-ion Replacement Battery (SB902 \/ SB902A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1100mAh Li-ion cell that fits the Shure GLXD1, GLXD2, GLX-D Digital Wireless systems, and MXW2 bodypack transmitters. All of these units share the same battery bay dimensions and SB902\/SB902A form factor. Capacity is 4.07Wh — identical to the original Shure spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGLXD1, GLXD2, and MXW2 compatibility:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell architecture, identical connector pinout, and the same BMS handshake protocol. One battery fits all four units without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on a GLXD2 unit. The BMS accepted the cell cleanly, reported correct charge state on the transmitter's LED indicator, and held voltage within spec through the full discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eTransmitter duty-cycle care:\u003c\/strong\u003e\n    The GLXD series uses 2.4GHz DECT transmission, which draws burst current during frequency-hopping handshakes. Avoid storing the transmitter with the battery partially charged for weeks at a time — burst-draw on a half-depleted cell accelerates internal resistance buildup faster than on a fully rested cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the GLXD1 drops signal mid-performance even with bars showing on the transmitter\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe GLXD1's fuel gauge reads state-of-charge from a voltage model, not a coulomb counter. As internal resistance climbs in an ageing cell, voltage sags sharply during the transmitter's RF burst — enough to trip the under-voltage cutoff — while the resting voltage still looks healthy to the gauge. The transmitter interprets this as a dropout rather than a low-battery event, so the indicator stays green. Replacing the cell resets the internal resistance to spec and eliminates the sag-induced cutoffs.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGLXD transmitter not recognised by the SBC-GLXD charger dock after a long storage period\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the SB902 cell sits dormant for several months, voltage can fall below 3.0V — the threshold at which the SBC-GLXD charger's wake circuit stops attempting a charge cycle. The dock sees the cell as a fault condition rather than a discharged pack and shows no charge activity. To recover, use a lab charger or a USB charger capable of pre-charge mode to raise the cell above 3.1V, then reinsert into the dock. Once above that threshold, the dock resumes normal CC\/CV charging without issue.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416231608410,"sku":"BWCS-SGX200SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416231641178,"sku":"BWCS-SGX200SL-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416231673946,"sku":"BWCS-SGX200SL-3","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SGX200SL-1.webp?v=1779761074","url":"https:\/\/batteryweb.com\/products\/shure-glxd1-replacement-battery-37v-1100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}