{"product_id":"moxee-k779-replacement-battery-37v-1840mah-li-ion","title":"Moxee BP1672 Replacement Battery 3.7V 1840mAh Li-ion K779","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMoxee K779 Series — 3.7V Li-ion Replacement Battery (BP1672)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1840mAh Li-ion replacement battery for the Moxee K779 mobile hotspot. It fits the K779, K779HSDG_P, and K779HSDL variants. Swap it when the original cell can no longer hold enough charge to keep the hotspot running through a full session.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK779 variant compatibility:\u003c\/strong\u003e\n    The K779, K779HSDG_P, and K779HSDL all share the same battery bay dimensions, connector pinout, and BMS handshake protocol — the BP1672 cell fits and communicates correctly across all three.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell under combined modem and Wi-Fi load with six connected clients. The BMS held steady through the draw cycle, showing no spurious low-voltage cutoff events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eVentilation during extended sessions:\u003c\/strong\u003e\n    Keep the K779 on a hard flat surface with the vents clear during long sessions. When connected devices are far away, the cellular radio pushes to maximum output power — that heat feeds directly into the battery cavity and accelerates cell wear.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the K779 drops all connected clients mid-session\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe K779 runs two power-hungry subsystems simultaneously — the cellular modem and the Wi-Fi radio. At maximum client count, the combined draw can spike voltage below the BMS cutoff threshold, triggering a protective shutdown. A degraded cell has less headroom to absorb these spikes. A fresh 1840mAh cell restores that buffer, so the BMS does not trip during normal multi-device loads.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eK779 showing solid power LED but refusing to boot\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a Li-ion cell discharges below roughly 3.0V during storage, the BMS locks out normal boot to protect the cell. The hotspot may show an LED response but the system will not initialise. Connect the K779 to its original charger for at least 15–20 minutes before attempting a power-on — this brings the cell above the BMS re-enable threshold. If the device still will not boot after that charge window, measure terminal voltage at the battery; anything below 3.2V confirms the old cell needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377821712474,"sku":"BWCS-MXK779SL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377821745242,"sku":"BWCS-MXK779SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377821778010,"sku":"BWCS-MXK779SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MXK779SL-1.webp?v=1778773880","url":"https:\/\/batteryweb.com\/products\/moxee-k779-replacement-battery-37v-1840mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}