{"product_id":"logitech-g7-laser-cordless-mouse-replacement-battery-37v-600mah-li-ion","title":"Logitech G7 Laser Compatible Battery 3.7V 600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech G7 Laser Cordless Mouse \/ MX Air — 3.7V Li-ion Replacement Battery (831409)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 600mAh Li-ion cell replaces the rechargeable battery in the Logitech G7 Laser Cordless Mouse, MX Air, and M-RBQ124. It slots into the original battery bay and restores wireless operation after the factory cell degrades. OEM part numbers covered include 831409, 831410, 190310-1000, NTA2319, L-LL11, and 190310-1001.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG7, MX Air, and M-RBQ124 compatibility:\u003c\/strong\u003e\n    These three models share the same 3.7V single-cell Li-ion format, identical connector pinout, and the same BMS handshake thresholds — so one cell covers all three without modification.\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 a G7 unit. The BMS accepted the cell immediately, showed no protection-trip events during normal tracking loads, and held voltage within the expected 3.7V nominal band throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eG7 charging dock contact care:\u003c\/strong\u003e\n    The G7 charges through a cradle with spring contacts rather than a cable port. If the cell isn't seating flush after swap, wipe the gold contacts on both the battery and cradle with a dry cloth — oxide buildup on those contacts interrupts the charge circuit before the BMS even engages.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the G7 stops reconnecting after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe G7 uses Logitech's Unifying or legacy 27MHz receiver, and the wireless link drops completely when voltage falls below the BMS cutoff. When a fresh cell restores power, the mouse firmware re-initialises from scratch — the receiver doesn't always handshake automatically. Unplugging the USB receiver, waiting ten seconds, and replugging it forces a fresh pairing cycle. If that still fails, hold the Connect button on the bottom of the mouse for three seconds while the receiver is plugged in.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or jumping at partial charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe G7's laser sensor runs a tighter polling loop than most office mice, and it draws enough current that a degraded or deeply discharged cell sags below the stable voltage window during tracking. The result is micro-dropouts that look like pointer stuttering or erratic jumps rather than a clean shutdown. This isn't a receiver or surface issue — it's voltage sag under sensor load. Check the battery indicator in Logitech's software; if it shows above 50% but stuttering persists, the old cell has lost capacity and the replacement will resolve it.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377934532698,"sku":"BWCS-LOG7RC-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377934565466,"sku":"BWCS-LOG7RC-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377934598234,"sku":"BWCS-LOG7RC-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOG7RC-1.webp?v=1778773964","url":"https:\/\/batteryweb.com\/products\/logitech-g7-laser-cordless-mouse-replacement-battery-37v-600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}