{"product_id":"samsung-galaxy-j1-6-replacement-battery-385v-2000mah-li-ion","title":"EB-BJ120CBU Samsung Galaxy J1 6 Replacement Battery 3.85V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy J1 2016 \/ SM-J120F — 3.85V Li-ion Replacement Battery (EB-BJ120CBU)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 2000mAh (7.7Wh) Li-ion cell for the Samsung Galaxy J1 6, also sold as the Galaxy J1 2016 and J1 6 Duos 4G LTE. It replaces OEM part numbers EB-BJ120CBU, EB-BJ120BBE, EB-BJ120CBEGWW, and GH43-04560A. The cell fits the SM-J120F\/DS and all variants in that family.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSM-J120 series fit:\u003c\/strong\u003e\n    Every SM-J120 variant uses the same 3.85V rail, identical 69.10 × 51.10 × 4.20mm footprint, and the same BMS connector pinout — that is why one cell covers the full J1 6 lineup including Duos and LTE models.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in an SM-J120F\/DS and monitored BMS handshake, charge acceptance, and cutoff behaviour. The protection circuit engaged correctly at both ends of the voltage window with no spurious trips under normal load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first installation, disable fast charging and run one full discharge-charge cycle before enabling high-current charging. This lets the fuel gauge IC map its coulomb counter to the new cell's discharge curve rather than the degraded curve it learned from the old battery.\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 Galaxy J1 6 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC still uses the voltage-to-capacity curve it built from the old, degraded cell. A fresh cell holds a steeper voltage cliff in the lower charge window, so the phone hits the hardware low-voltage cutoff before the OS percentage counter reaches zero. The modem radio and display together draw enough current to collapse cell voltage below 3.4V in milliseconds — faster than the fuel gauge can update. One complete discharge cycle down to auto-off, followed by a full charge, resets the coulomb counter against the new cell's actual curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGalaxy J1 6 not powering on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge in storage, and if the cell shipped or was stored for several months, voltage may have dropped below the BMS lockout threshold — typically 2.5V per cell. When voltage falls that low, the protection circuit opens the output FET and the phone sees no battery at all, not a flat one. Connect the phone to a wall charger rather than a PC USB port, which delivers higher current to wake a locked-out BMS. Leave it on charge for 15–20 minutes before attempting to power on; once the BMS sees voltage climb above roughly 2.9V it will re-enable the output and the phone will boot normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392094568538,"sku":"BWCS-SMJ120SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392094601306,"sku":"BWCS-SMJ120SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392094634074,"sku":"BWCS-SMJ120SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMJ120SL-1.webp?v=1779143764","url":"https:\/\/batteryweb.com\/products\/samsung-galaxy-j1-6-replacement-battery-385v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}