{"product_id":"lg-gb100-replacement-battery-37v-800mah-li-ion","title":"LGIP-531A LG GB100 Compatible Battery 3.7V 800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLG GB100 Series — 3.7V Li-ion Replacement Battery (LGIP-531A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 800mAh Li-ion replacement battery for the LG GB100 and related models including the GB101, GB106, and GB110. It uses OEM part number LGIP-531A and slots directly into the same battery bay as the original cell. If your GB100 is shutting down unexpectedly or no longer holding a charge, this replaces the degraded cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGB100 series compatibility:\u003c\/strong\u003e\n    The GB100, GB101, GB106, and GB110 share the same battery bay geometry, connector pinout, and 3.7V nominal voltage rail. All confirmed models use the LGIP-531A form factor, so one cell covers the full range 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 a full discharge-charge sequence and confirmed the BMS communicates correctly with the charge IC — no false full-charge cutoff and no low-voltage lockout triggered prematurely under standard load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first cycle:\u003c\/strong\u003e\n    On first use after installation, run one complete discharge down to automatic power-off, then charge uninterrupted to 100%. The GB100's fuel gauge IC was calibrated to the old cell's discharge curve — skipping this step causes percentage readouts to drift or jump erratically from the first hour.\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 GB100 after cell replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe GB100 uses a simple fuel gauge IC that tracks remaining capacity against a stored discharge curve from the original cell. A new cell with a slightly different internal resistance profile hits a voltage cliff at a different state-of-charge than the old one. When the phone's modem fires up for a call or the screen peaks in brightness, the instantaneous current draw pulls cell voltage below the BMS cutoff threshold — even though the reported percentage looks safe. The fix is one full discharge-charge cycle without interruption, which forces the fuel gauge to map the new cell's actual voltage curve before it resumes percentage reporting.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGB100 not powering on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 1–3% per month in storage, and a cell stored for an extended period can drop below 2.5V per cell — the threshold where the BMS latches into protective lockout and refuses to output current. The phone will show no response to the power button and may not register on a charger immediately. Connect the phone to a wall charger rather than USB on a computer, leave it for 20–30 minutes undisturbed, and the charge IC will trickle current into the cell until it recovers past the 2.7V re-initialisation threshold. If the phone still shows no charge indicator after 30 minutes on a wall adapter, check the charger output is at least 5V 1A.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405126860890,"sku":"BWCS-LKU250SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405126893658,"sku":"BWCS-LKU250SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405126926426,"sku":"BWCS-LKU250SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LKU250SL-1.webp?v=1779369993","url":"https:\/\/batteryweb.com\/products\/lg-gb100-replacement-battery-37v-800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}