{"product_id":"cricket-source-replacement-battery-38v-2000mah-li-ion","title":"Cricket Source 3.8V Replacement Battery 2000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCricket Source \/ N9511 — 3.8V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 2000mAh Li-ion battery for the Cricket Source (model N9511). It fits directly into the phone once the original cell is removed. Use this when the existing battery no longer holds a charge or the phone shuts down unexpectedly under load.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSource \/ N9511 fit:\u003c\/strong\u003e\n    Both model names refer to the same hardware platform. The phone uses a 3.8V nominal cell with a standard Li-ion BMS handshake — this battery meets that spec without any modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the bench. The BMS accepted charge from the device's onboard charge IC without triggering a protection cutoff, and voltage output stayed stable under simulated screen and modem load.\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 and run one complete discharge-charge cycle before relying on the percentage readout. The fuel gauge IC is calibrated to the old cell's discharge curve — one full cycle lets it map the new cell accurately before fast-charge current is introduced.\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\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage-cliff failure. Under modem or display load, the cell's actual voltage drops below the BMS cutoff threshold before the fuel gauge reads zero. The gauge still shows 20–30% because its coulomb counter was calibrated to a different discharge curve. One full discharge-charge cycle resets the coulomb counter against the real capacity of the new cell. After that cycle, the percentage readout tracks actual voltage correctly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone feels warm near the battery during the first few charges\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new cell arrives with higher internal impedance than a well-cycled battery. During the first two or three charges, the charge IC pushes current into a cell that hasn't settled — that converts more energy to heat than usual. This is not a fault. Impedance drops as the cell cycles. If warmth persists past the third full charge or the phone gets hot enough to be uncomfortable, stop charging and check for a swollen cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404291932250,"sku":"BWCS-ZTN951SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404291965018,"sku":"BWCS-ZTN951SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404291997786,"sku":"BWCS-ZTN951SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTN951SL-1.webp?v=1779369658","url":"https:\/\/batteryweb.com\/products\/cricket-source-replacement-battery-38v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}