{"product_id":"samsung-sgh-t699-replacement-battery-37v-1500mah-li-ion","title":"EB-L1K6ILA Samsung SGH-T699 Replacement Battery 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung SGH-T699 \/ Galaxy S Blaze Q — 3.7V Li-ion Replacement Battery (EB-L1K6ILA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1500mAh Li-ion replacement battery for the Samsung SGH-T699, Galaxy S Blaze Q, Relay 4G, and SCH-i415. It replaces OEM part numbers EB-L1K6ILA, EB-L1K6ILZ, and EB-L1K6ILABXAR. Swap it in when the original cell no longer holds charge or causes unexpected shutdowns.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSGH-T699 \/ Relay 4G \/ SCH-i415 compatibility:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell Li-ion architecture, identical connector pinout, and the same BMS handshake protocol — one cell SKU covers the full group without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full discharge and charge on the SGH-T699 and confirmed the BMS accepted the handshake, charge IC engaged normally, and the fuel gauge IC began tracking state-of-charge without fault codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first install:\u003c\/strong\u003e\n    Disable fast charging for the first complete discharge-charge cycle after fitting this cell. The fuel gauge IC is still calibrated to the old cell's discharge curve — letting it run one full cycle at standard current gives it accurate data before high-current charging begins.\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 SGH-T699 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC maps state-of-charge using a discharge curve it learned from the old, degraded cell. The new cell has a steeper voltage drop under modem and screen load than the IC expects at that percentage. When the voltage sags below the cutoff threshold — typically around 3.4V under load — the BMS trips and the phone shuts down even though the reported percentage still looks healthy. Run one uninterrupted full discharge down to automatic shutoff, then charge to 100% without interruption, and the coulomb counter will re-anchor to the new cell's actual curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone not powering on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage, and if a cell drops below approximately 2.5V, the BMS enters a lockout state to prevent damage from deep discharge. The phone will show no response — no boot, no charge indicator — when this happens. Connect the original charger and leave it for 15–20 minutes without pressing the power button; the charge IC will trickle current into the cell until voltage rises above the BMS re-enable threshold. Once the charge LED activates or the screen shows the battery icon, the BMS has re-initialised and normal charging will resume.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404344590426,"sku":"BWCS-SMT699SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404344623194,"sku":"BWCS-SMT699SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404344655962,"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\/samsung-sgh-t699-replacement-battery-37v-1500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}