{"product_id":"sigor-numotion-replacement-battery-37v-5200mah-li-ion","title":"Sigor Numotion Replacement Battery 3.7V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSigor Numotion \/ Nuindie Series — 3.7V Li-ion Replacement Battery (851446832.00)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 5200mAh Li-ion battery for the Sigor Numotion, Nuindie, and Nuindie Mini portable LED desk lamps. It replaces OEM part number 851446832.00 when the original cell no longer holds a full charge. Swapping it restores the lamp's full brightness range and cordless operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNumotion, Nuindie, and Nuindie Mini compatibility:\u003c\/strong\u003e\n    All three lamp models share the same 3.7V single-cell architecture and battery form factor. The LED driver circuit and BMS handshake are identical across the range, so one cell replacement covers all three variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the full brightness range — from warm dim to maximum output. The BMS held stable under the higher current draw at peak brightness, and the protection circuit responded correctly to low-voltage cutoff without locking out the charging circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eUV and multi-mode charging behaviour:\u003c\/strong\u003e\n    Charge the lamp fully before first use. If the lamp includes a UV or high-intensity mode, a cell sitting at storage voltage can trigger a premature low-battery warning the moment that mode activates — a full initial charge prevents this.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLamp not reaching rated brightness after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA freshly installed cell ships at storage voltage — typically 3.6V to 3.7V, not the full 4.2V charge ceiling. The LED driver in the Numotion series requires adequate cell voltage to sustain maximum current output. At storage voltage, the driver throttles brightness to protect the cell. A full charge cycle before first use brings the cell to 4.2V and unlocks the full brightness range.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLamp flickering or cutting out before the battery indicator hits zero\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis usually means the LED driver is dropping out below its minimum input voltage threshold — not that the cell is empty. On high brightness settings, current draw spikes and cell voltage sags temporarily below the driver's cutoff point even when average charge is still reasonable. If flickering happens consistently at the same brightness level, step down one notch and check whether it stabilises. If the issue persists on a new cell, verify the USB-C charge port is clean and delivering a full charge — a partially charged cell will sag harder under load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415988600922,"sku":"BWCS-SGR832LT-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415988633690,"sku":"BWCS-SGR832LT-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415988666458,"sku":"BWCS-SGR832LT-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SGR832LT-1.webp?v=1779758956","url":"https:\/\/batteryweb.com\/products\/sigor-numotion-replacement-battery-37v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}