{"product_id":"cricket-dream-5g-replacement-battery-387v-4600mah-li-polymer","title":"Cricket Dream 5G HE403 Compatible Battery 3.87V 4600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCricket Dream 5G \/ EC211001 — 3.87V Li-Polymer Replacement Battery (HE403)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.87V, 4600mAh (17.8Wh) Li-Polymer replacement battery for the Cricket Dream 5G smartphone (model EC211001). It replaces part number HE403 — the original cell used in this device. Fit this when the original battery no longer holds a useful charge, swells, or fails to power the phone.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDream 5G \/ EC211001 fitment:\u003c\/strong\u003e\n    Both model references share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The HE403 part number covers the full EC211001 production run — no hardware revision splits the compatibility.\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 Dream 5G platform. The BMS accepted the charge curve without triggering a protection cutoff, and the fuel gauge IC locked onto the new cell's capacity within one full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fast charge protocol:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard rate. This lets the fuel gauge IC recalibrate its coulomb counter against the new cell's actual discharge curve before high-current charging begins on an uncalibrated cell.\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 Cricket Dream 5G after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Dream 5G's fuel gauge IC builds its state-of-charge model from the original cell's voltage-versus-capacity curve. A new cell has a slightly different curve, so the IC underestimates remaining capacity at low charge states. When the modem fires a 5G transmission burst or the screen peaks in brightness, current draw spikes and cell voltage drops sharply — the IC reads this as a hard cutoff and the phone shuts down. One full discharge-charge cycle at standard rate corrects the IC's internal model. After calibration, voltage readings at the 20–30% range stabilise and shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB-PD fast charge not accepted on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter fitting a new HE403 cell, some users find the phone charges at slow speed only — the fast charge icon never appears. The charge IC uses a BMS handshake to confirm cell state before allowing high-current USB-PD negotiation; on a fresh cell with no charge history, it defaults to a low-current trickle until the first full cycle completes. This is not a fault. Run one full standard-rate charge to 100% and discharge below 15%, then reconnect the fast charger. The USB-PD handshake re-establishes at that point and fast charging resumes normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391801589850,"sku":"BWCS-CKA211SL-1","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391801622618,"sku":"BWCS-CKA211SL-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391801655386,"sku":"BWCS-CKA211SL-3","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CKA211SL-1.webp?v=1779142181","url":"https:\/\/batteryweb.com\/products\/cricket-dream-5g-replacement-battery-387v-4600mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}