{"product_id":"boostmobile-veni-replacement-battery-37v-2400mah-li-ion","title":"BoostMobile VENI Replacement Battery 3.7V 2400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBoostMobile VENI \/ LG730 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2400mAh Li-ion cell for the BoostMobile VENI and LG730 smartphones. It replaces the original battery when capacity has dropped or the cell has failed outright. Voltage and physical dimensions match the stock cell exactly: 64.85 × 43.26 × 10.50mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVENI and LG730 compatibility:\u003c\/strong\u003e\n    Both devices share the same battery bay dimensions, 3.7V nominal rail, and connector pinout — one cell covers both. The BMS handshake protocol is identical across this hardware revision.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through a full charge-discharge sequence and monitored BMS cutoff behaviour at low-voltage threshold. The protection circuit tripped correctly at the expected floor, with no false cutoffs under simulated screen-plus-modem load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first installation, disable fast charging and run one complete discharge-charge cycle at standard rate. The fuel gauge IC on the VENI calibrates its coulomb counter against the cell's discharge curve — skipping this step on a new cell causes the percentage readout to drift mid-cycle.\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 BoostMobile VENI\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a capacity problem. When the modem fires for a call or the screen peaks brightness, current draw spikes sharply. A degraded or uncalibrated cell cannot hold voltage through that spike, and the phone's power management IC interprets the sag as an empty battery and cuts out. Replacing the cell removes the source of the sag, but the fuel gauge IC still needs one full cycle to map the new cell's discharge curve accurately. Until that cycle completes, shutdowns at apparent 20–30% can persist.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone reports wrong battery percentage after cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe VENI's fuel gauge IC stores a learned discharge curve from the old cell in its coulomb counter. After swapping to a new cell, that stored curve no longer matches the actual chemistry — so the percentage shown is mapped against stale data. The fix is one uninterrupted discharge from 100% to auto-shutdown, followed by a full charge to 100%, with fast charging turned off. After that single cycle, the IC resets its reference points against the new cell and percentage accuracy stabilises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404346654810,"sku":"BWCS-LMS770XL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404346687578,"sku":"BWCS-LMS770XL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404346720346,"sku":"BWCS-LMS770XL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LMS770XL-1.webp?v=1779369806","url":"https:\/\/batteryweb.com\/products\/boostmobile-veni-replacement-battery-37v-2400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}