{"product_id":"blu-vivo-air-replacement-battery-38v-2050mah-li-polymer","title":"BLU VIVO AIR D980L Replacement Battery 3.8V 2050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBLU VIVO AIR \/ D980L — 3.8V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 2050mAh Li-Polymer replacement battery for the BLU VIVO AIR and D980L smartphones. It fits directly into either model and restores power capacity to a phone that no longer holds a usable charge. At 81.40 × 60.26 × 2.86mm, the cell matches the original form factor.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVIVO AIR and D980L compatibility:\u003c\/strong\u003e\n    Both models run on the same 3.8V battery platform with identical connector pinout and BMS handshake protocol — one cell covers both without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge and discharge on the VIVO AIR platform. The BMS accepted the cell without error flags, and the charge IC completed a full cycle without thermal cutoff.\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-to-charge cycle. This lets the fuel gauge IC map its coulomb counter against the new cell's discharge curve before high-current charging is applied to 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 VIVO AIR after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a capacity fault. Under modem transmit or screen backlight load, the new cell may sag below the shutdown threshold before the percentage gauge catches up. The fuel gauge IC is still calibrated to the old cell's discharge curve and misreads remaining capacity. One full discharge-charge cycle with fast charging disabled resets the coulomb counter and eliminates most premature shutdowns.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eVIVO AIR not powering on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge in storage. If the cell drops below approximately 2.5V per cell, the BMS enters lockout and blocks current flow to protect the cell from damage. The phone will show no response — no charge indicator, no boot screen. Connect to a wall charger rated at 5V\/1A and leave it for 20–30 minutes without pressing the power button; the charge IC needs time to trickle current past the BMS lockout threshold before normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404220563546,"sku":"BWCS-GNN905SL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404220596314,"sku":"BWCS-GNN905SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404220629082,"sku":"BWCS-GNN905SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GNN905SL-1.webp?v=1779369391","url":"https:\/\/batteryweb.com\/products\/blu-vivo-air-replacement-battery-38v-2050mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}