{"product_id":"motorola-moto-edge-20-lite-replacement-battery-385v-4800mah-li-polymer","title":"Motorola NT50 Moto Edge 20 lite Compatible Battery 3.85V 4800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMotorola Moto Edge 20 Lite — 3.85V Li-Polymer Replacement Battery (NT50)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 4800mAh Li-Polymer replacement battery for the Motorola Moto Edge 20 Lite, Moto Edge 20 Lite 5G, and XT2139-1. It replaces OEM part number NT50 and restores full electrical function to the handset. Install it when the original cell has degraded, lost significant capacity, or failed outright.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eXT2139-1 platform compatibility:\u003c\/strong\u003e\n    The Edge 20 Lite variants — including the 5G 2021 build — share the same battery bay dimensions, connector pinout, and BMS handshake protocol. One cell fits all listed models 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, load, and BMS trip scenarios on the XT2139-1 board. The protection circuit responded correctly to overcurrent conditions, and the fuel gauge IC accepted the new cell after one full discharge-charge cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fuel gauge recalibration:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard rate. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes load into an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA fresh Li-Polymer cell has a steeper voltage cliff than a worn original. When the modem fires at full power or the display brightness spikes, current draw pulls the cell voltage below the BMS cutoff threshold — even though the fuel gauge still reads 20–30%. The fuel gauge IC is still calibrated to the old cell's discharge curve at this point. Run two full discharge-charge cycles at standard charge rate to let the coulomb counter resync with the new cell's actual voltage-capacity relationship. After recalibration, the cutoff behaviour normalises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB-PD fast charge not activating on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge cycle after a cell swap, the charge IC may not negotiate the fast charge protocol with the new battery's BMS. This is normal — the IC runs a conservative handshake until it confirms the new cell is within safe impedance range. Charge once at standard rate using the stock cable and charger, then disconnect and reconnect. Fast charge protocol should activate from the second cycle onward. If it does not engage by cycle three, check that the battery connector is fully seated at both ends.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391865487450,"sku":"BWCS-MXT213SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391865520218,"sku":"BWCS-MXT213SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391865552986,"sku":"BWCS-MXT213SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MXT213SL-1.webp?v=1779142413","url":"https:\/\/batteryweb.com\/products\/motorola-moto-edge-20-lite-replacement-battery-385v-4800mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}