{"product_id":"kyocera-duraforce-ultra-5g-replacement-battery-385v-4500mah-li-ion","title":"Kyocera DuraForce Ultra 5G PCGF30 Replacement Battery 3.85V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKyocera DuraForce Ultra 5G — 3.85V Li-ion Replacement Battery (PCGF30)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 4500mAh Li-ion replacement battery for the Kyocera DuraForce Ultra 5G, DuraForce Ultra 5G UW, and E7110. It fits the original battery bay and uses the same connector and BMS handshake as the factory cell. Install it when the original battery no longer holds a usable charge or fails to power the device.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDuraForce Ultra 5G, UW, and E7110 fit:\u003c\/strong\u003e\n    All three models share the same battery bay dimensions, voltage rail, and PCGF30 connector pinout. The BMS on each device communicates the same handshake, so one cell covers the full model family 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 full charge and discharge cycles on the E7110. The BMS accepted the new cell on the first connection, held charge cutoff at 4.35V, and triggered low-voltage protection at the correct threshold without tripping early shutdown.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current fast charging pushes current into an uncalibrated cell — preventing false percentage readings from the first charge onward.\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 replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still calibrated to the old cell's voltage curve. When the new cell's voltage drops under 5G modem or screen load, it hits a cliff the gauge wasn't expecting — the phone reads 25% but the cell voltage has already fallen below the safe cutoff. The fix is one full discharge-charge cycle with the phone in normal use and fast charging disabled. After that cycle, the coulomb counter recalibrates to the new cell and the shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB-PD fast charge not activating on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge after a cell swap, the charge IC may reject the USB-PD handshake and fall back to standard 5W charging. This is the BMS protecting an uncalibrated cell — it doesn't yet have a verified state-of-charge reading, so it limits input current until it does. Run one full standard charge cycle first. After that, plug into a USB-PD charger and the fast charge protocol will negotiate correctly at the rated current.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391779831898,"sku":"BWCS-KYE711SL-1","price":43.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43391779864666,"sku":"BWCS-KYE711SL-2","price":51.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43391779897434,"sku":"BWCS-KYE711SL-3","price":56.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KYE711SL-1.webp?v=1779141908","url":"https:\/\/batteryweb.com\/products\/kyocera-duraforce-ultra-5g-replacement-battery-385v-4500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}