{"product_id":"novatel-wireless-mifi4510l-replacement-battery-37v-1350mah-li-ion","title":"Novatel Wireless MiFi 4510L Compatible Battery 3.7V 1350mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNovatel Wireless MiFi 4510L \/ MiFi 3352 — 3.7V Li-ion Replacement Battery (40123111.00)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1350mAh Li-ion battery replaces the original cell in the Novatel Wireless MiFi 4510L, MiFi 4510L 4G LTE, MIFI451, and MiFi 3352 mobile hotspots. It fits the same battery bay and connects to the same BMS interface as the factory unit. Capacity is 1350mAh (5Wh), matching OEM spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMiFi 4510L and MiFi 3352 platform fit:\u003c\/strong\u003e\n    These models share the same battery footprint, connector pinout, and BMS handshake protocol. The 65.80 × 43.60 × 5.00mm cell slides into either chassis without modification, and the BMS reads state-of-charge correctly across all listed variants.\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 — cellular radio active, four client devices connected. The BMS held stable voltage through the draw cycle with no low-voltage cutoff events during normal operation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eSignal environment tip:\u003c\/strong\u003e\n    When the MiFi 4510L is in a weak cellular signal area, the modem boosts transmit power to maintain the connection. This raises heat output and current draw simultaneously. Position the hotspot near a window or external antenna source to reduce transmit load on the battery.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the MiFi 4510L drops connected devices mid-session\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MiFi 4510L runs two power-hungry subsystems at once — the cellular modem and the Wi-Fi radio. When battery voltage sags under peak combined draw, the BMS can briefly throttle output to protect the cell. That momentary voltage dip causes the modem to reset, which drops all connected clients at the same time. A worn original battery accelerates this because its internal resistance is higher, so voltage sag under load is steeper and faster.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHotspot shows \"charging\" but won't boot after sitting unused for weeks\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells that discharge below roughly 2.5V enter a protection state where the BMS blocks normal boot to prevent cell damage. After extended storage with no charge, the MiFi 4510L will show a charging indicator but refuse to power on. Leave it on the charger for 20–30 minutes before attempting to boot — the BMS needs to see the cell recover above the minimum recovery threshold before it releases the power rails. If the device still won't boot after a full hour on charge, check that the charger output is at least 5V 1A.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377880563802,"sku":"BWCS-MR3352RC-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377880596570,"sku":"BWCS-MR3352RC-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377880629338,"sku":"BWCS-MR3352RC-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MR3352RC-1.webp?v=1778773940","url":"https:\/\/batteryweb.com\/products\/novatel-wireless-mifi4510l-replacement-battery-37v-1350mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}