{"product_id":"brondi-gladiator-replacement-battery-37v-2000mah-li-ion","title":"Brondi Gladiator Compatible Battery 3.7V 2000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBrondi Gladiator \/ Gladiator 1 — 3.7V Li-ion 2000mAh Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2000mAh Li-ion cell replaces the original battery in the Brondi Gladiator and Gladiator 1 smartphones. It restores power to devices where the factory cell has degraded and can no longer hold a usable charge. Dimensions are 70.00 × 63.85 × 4.50mm — verify against your original cell before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGladiator \/ Gladiator 1 fitment:\u003c\/strong\u003e\n    Both variants share the same battery bay dimensions, voltage rail, and connector pinout. One cell covers both models 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 charge and discharge on the bench. The BMS accepted charge normally, enforced the 4.2V cutoff at top-of-charge, and tripped the low-voltage cutoff cleanly before cell damage could occur.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable fast charging and run one complete discharge-to-charge cycle at standard rate. This lets the phone's fuel gauge IC map the new cell's discharge curve before high-current charging runs into an uncalibrated state.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Gladiator reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Gladiator's fuel gauge IC stores a learned discharge curve from the original cell. When a new cell goes in, that stored curve no longer matches actual cell behaviour. The gauge reads percentage against old data, so reported charge and true charge diverge — often by 15–25%. One full discharge from 100% to automatic shutdown, followed by a full uninterrupted charge, forces the coulomb counter to relearn the curve against the replacement cell. After that cycle, percentage readings stabilise.\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 screen pulls a current spike the cell cannot sustain at that state of charge, causing cell voltage to sag below the BMS cutoff threshold — even though the gauge still shows charge remaining. The phone interprets the voltage drop as a fault and cuts power. It is a calibration gap, not a defective cell. Run one full discharge cycle without fast charging, let the fuel gauge relearn the discharge curve, and the cutoff point will shift down toward the actual low-voltage floor near 3.2–3.4V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404322963546,"sku":"BWCS-MCT200XL-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404322996314,"sku":"BWCS-MCT200XL-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404323029082,"sku":"BWCS-MCT200XL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MCT200XL-1.webp?v=1779369761","url":"https:\/\/batteryweb.com\/products\/brondi-gladiator-replacement-battery-37v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}