{"product_id":"lg-nexus-4-replacement-battery-38v-2100mah-li-polymer","title":"LG Nexus 4 BL-T5 Replacement Battery 3.8V 2100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLG Nexus 4 \/ E960 — 3.8V Li-Polymer Replacement Battery (BL-T5)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 2100mAh Li-Polymer replacement cell for the LG Nexus 4 (E960). It replaces OEM part BL-T5 (EAC61898601) and fits all Nexus 4 variants including the 16GB model (Mako). Install it when the original cell no longer holds a charge or causes unexpected shutdowns.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNexus 4 \/ E960 platform fit:\u003c\/strong\u003e\n    All Nexus 4 variants share the same 3.8V single-cell Li-Polymer architecture, the same BL-T5 footprint (69.72 × 45.10 × 4.40mm), and the same charge IC handshake. One cell covers the full lineup.\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 the E960 mainboard. The BMS accepted the full 2100mAh charge without triggering an over-voltage cutoff, and the fuel gauge IC tracked the discharge curve without erratic jumps after the first full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    Disable fast charging for the first complete discharge-charge cycle after installation. This lets the Nexus 4's fuel gauge IC map the new cell's discharge curve accurately before high-current charging pushes current into an uncalibrated state.\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 BL-T5 cell has a slightly different discharge curve than the worn original. The Nexus 4's fuel gauge IC uses a stored curve from the old cell and misjudges how much capacity remains. When the modem fires during a call or LTE data burst, current draw spikes and the cell voltage drops below the BMS cutoff threshold — even though the gauge still shows 20–30%. One full discharge-to-shutdown and a complete recharge resets the coulomb counter and fixes the mismatch. After that cycle, voltage readings under load stabilise above 3.5V at low reported percentages.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone won't power on after the battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge in storage. If the replacement cell dropped below 2.5V, the BMS enters lockout mode to prevent cell damage — and the phone shows nothing when you press power. Connect to a known-good 5V USB charger and leave it for 20–30 minutes without pressing any buttons. The charge IC trickle-charges the cell back above the BMS re-enable threshold, which sits around 2.9V. Once the Nexus 4 shows the charging indicator on screen, proceed with a normal full charge cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404331515994,"sku":"BWCS-BLT500SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404331548762,"sku":"BWCS-BLT500SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404331581530,"sku":"BWCS-BLT500SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BLT500SL-1.webp?v=1779369761","url":"https:\/\/batteryweb.com\/products\/lg-nexus-4-replacement-battery-38v-2100mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}