{"product_id":"uscellular-sch-r830-replacement-battery-38v-2100mah-li-ion","title":"EB-L1H7LLA Samsung Galaxy S III Replacement Battery 3.8V 2100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eUSCellular SCH-R830 Galaxy Axiom — 3.8V Li-ion Replacement Battery (EB-L1H7LLA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 2100mAh Li-ion cell for the Samsung Galaxy S III distributed by USCellular as the SCH-R830, also sold as the Galaxy Axiom. It replaces OEM part EB-L1H7LLA and EB-L1H7LLABXAR. If your original cell no longer holds a useful charge or swells, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSCH-R830 and Galaxy Axiom compatibility:\u003c\/strong\u003e\n    Both model numbers reference the same USCellular-distributed Galaxy S III hardware. They share the same battery bay dimensions (63.00 × 50.40 × 5.40mm), the same 3.8V nominal rail, and the same OEM part number. One battery covers both listings without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the SCH-R830 platform. The BMS accepted charge from the device's onboard charge IC without triggering protection flags, and voltage settled at 4.35V at full charge with no thermal events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after install:\u003c\/strong\u003e\n    On first use, disable any fast-charge mode and run one full discharge-to-charge cycle before relying on the battery percentage indicator. This lets the fuel gauge IC map the new cell's discharge curve before the coulomb counter anchors its calibration values.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the SCH-R830 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Galaxy S III uses a fuel gauge IC that builds its charge-state model from the previous cell's learned discharge curve. When you install a new cell, that stored curve no longer matches actual cell chemistry, so the reported percentage drifts — sometimes by 10–20%. One complete discharge below 10% and a full charge to 100% without interruption forces the IC to relearn against the new cell. After that single cycle, percentage reporting stabilises.\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 modem or display draws a current spike the cell cannot sustain without dropping below the BMS cutoff threshold — typically around 3.0V under load. A freshly installed cell that hasn't completed a calibration cycle is most vulnerable because the charge IC hasn't confirmed actual usable capacity. Run one full discharge cycle, then charge uninterrupted to 100%. If shutdowns persist past two full cycles, check that the battery contacts are clean and seated flat — a high-contact-resistance connection accelerates voltage sag under load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404324569178,"sku":"BWCS-SML300XL-1","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404324601946,"sku":"BWCS-SML300XL-2","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404324634714,"sku":"BWCS-SML300XL-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SML300XL-1.webp?v=1779369779","url":"https:\/\/batteryweb.com\/products\/uscellular-sch-r830-replacement-battery-38v-2100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}