{"product_id":"verizon-galaxy-stratosphere-ii-4g-replacement-battery-37v-1500mah-li-ion","title":"Galaxy Stratosphere II 4G Replacement Battery 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVerizon Galaxy Stratosphere II 4G — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1500mAh Li-ion replacement battery for the Verizon Galaxy Stratosphere II 4G (SCH-I415 \/ SCHI415SAV). It slots into the standard battery bay and connects to the phone's charge and fuel gauge circuits. Capacity matches the original cell at 5.55Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSCH-I415 platform fit:\u003c\/strong\u003e\n    The Stratosphere II runs a single-cell 3.7V rail shared across the QWERTY keyboard backlight, LTE modem, and display. Any replacement cell must hold voltage under combined modem and display load — this cell meets that requirement without connector modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the cell through charge-discharge cycles on an SCH-I415 unit. The BMS accepted charge immediately, the fuel gauge IC tracked state-of-charge without spurious jumps, and the protection circuit tripped correctly at low-voltage cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installing this cell, disable fast charging and run one complete discharge-to-charge cycle before normal use. The phone's fuel gauge IC is calibrated against the old cell's discharge curve — one full cycle resets the coulomb counter to the new cell and prevents erratic percentage readings.\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 Stratosphere II after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Stratosphere II's LTE modem pulls hard current spikes during handoff events. If the fuel gauge IC still holds calibration data from the degraded original cell, it can report 25% remaining while the actual cell voltage has already dropped below the modem's minimum operating threshold — around 3.4V under load. The phone cuts power to protect the circuit before the display percentage reaches zero. One full discharge-charge cycle after installation forces the coulomb counter to rebuild its reference table against the new cell, and the premature shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone won't power on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the voltage drops below approximately 2.5V per cell, the BMS enters lockout mode and blocks charge input to prevent damage from deep-discharge recovery. Plugging the phone in shows nothing on screen. Connect the phone to a wall adapter — not a USB port — 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 the phone will respond to a boot attempt.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404344393818,"sku":"BWCS-SMT699SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404344426586,"sku":"BWCS-SMT699SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404344459354,"sku":"BWCS-SMT699SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMT699SL-1.webp?v=1779369820","url":"https:\/\/batteryweb.com\/products\/verizon-galaxy-stratosphere-ii-4g-replacement-battery-37v-1500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}