{"product_id":"voca-v530-replacement-battery-37v-1000mah-li-ion","title":"VOCA V530 Compatible Battery 3.7V 1000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVOCA V530 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1000mAh Li-ion cell for the VOCA V530 smartphone. It replaces the original battery when the phone no longer holds charge through a standard day. Dimensions are 46.89 × 44.00 × 5.37mm — confirm these against your existing cell before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eV530 form factor:\u003c\/strong\u003e\n    The V530 uses a compact removable cell at this exact voltage and footprint. The connector pinout and cell dimensions must match — a cell even 0.5mm thicker can prevent the back cover from seating correctly.\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 smartphone test rig. The BMS accepted charge handshake correctly and held voltage above the modem-load threshold through full discharge without tripping overcurrent protection.\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 complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell — preventing erratic percentage readings from the first day.\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 V530 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still running the discharge curve from the old, degraded cell. When screen brightness or the modem spikes current draw, the new cell's voltage briefly dips below the shutdown threshold — even though the reported percentage looks safe. The OS sees a voltage cliff, not a capacity reading. Run one full discharge to 0% and a full charge to 100% without interruption; the coulomb counter resets and the shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone warm near the battery compartment on the first charge cycle\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new cell starts with higher internal impedance than a broken-in one. The charge IC pushes current into that resistance, and the extra energy dissipates as heat in the first one or two cycles. Surface warmth — not hot to the touch — during the first full charge is normal and reduces as the cell breaks in. If the phone becomes too hot to hold, disconnect immediately and check that the replacement cell dimensions match the originals — a misfit cell sitting against other components traps heat.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404310151258,"sku":"BWCS-AUM700SL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404310184026,"sku":"BWCS-AUM700SL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404310216794,"sku":"BWCS-AUM700SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUM700SL-1.webp?v=1779369679","url":"https:\/\/batteryweb.com\/products\/voca-v530-replacement-battery-37v-1000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}