{"product_id":"viewsonic-v350-replacement-battery-37v-1500mah-li-ion","title":"HH08C ViewSonic V350 Replacement Battery 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eViewSonic V350 — 3.7V Li-ion Replacement Battery (HH08C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V Li-ion replacement battery for the ViewSonic V350 smartphone. It carries 1500mAh (5.55Wh) capacity and slots directly into the V350's battery bay. Use this when the original cell no longer holds a charge or shuts the phone down unexpectedly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eV350 fit:\u003c\/strong\u003e\n    The V350 uses a sealed 3.7V single-cell layout with a fixed connector orientation. This cell matches that voltage rail, physical footprint (65 × 42 × 5mm), and connector pinout — so the phone's charge IC and fuel gauge IC can communicate with the replacement cell without errors.\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 a V350 unit. The BMS accepted charge from the phone's charge IC without triggering a rejection fault, and voltage held stable through low-current screen-on load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging for one full discharge-charge cycle. This lets the fuel gauge IC map its coulomb counter against the new cell's discharge curve before high-current charging pushes current 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\"\u003eWhy the V350 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe V350's fuel gauge IC builds a discharge curve from the original cell over hundreds of cycles. Swap in a new cell and that stored curve no longer matches. The IC interpolates percentage against the wrong reference, so readings can appear inflated or inconsistent. One complete discharge-to-charge cycle lets the coulomb counter reset and relearn the new cell's actual capacity curve.\u003c\/p\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\"\u003eThis happens when the cell voltage drops sharply under load — typically during modem activity or screen-on bursts — faster than the fuel gauge IC predicted. The phone's protection circuit sees the voltage cliff and cuts power before the reported percentage reaches zero. It is not a faulty cell. Run two full discharge-charge cycles to let the fuel gauge IC recalibrate its low-voltage threshold against the new cell. After calibration, shutdown should track closer to 5–8%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405123518554,"sku":"BWCS-AC110SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405123551322,"sku":"BWCS-AC110SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405123584090,"sku":"BWCS-AC110SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AC110SL-1.webp?v=1779369991","url":"https:\/\/batteryweb.com\/products\/viewsonic-v350-replacement-battery-37v-1500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}