{"product_id":"asus-halley-replacement-battery-37v-1100mah-li-ion","title":"Asus Halley SBP-02 Replacement Battery 3.7V 1100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus Halley \/ Jupiter — 3.7V Li-ion Replacement Battery (SBP-02)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1100mAh Li-ion replacement battery for the Asus Halley and Asus Jupiter smartphones. It slots in where the original SBP-02 cell sits and restores power to the device. Capacity figure is taken from the product specification — 4.07Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHalley and Jupiter shared platform:\u003c\/strong\u003e\n    Both phones run the same voltage rail and use the same SBP-02 connector pinout with an identical BMS handshake, which is why one cell covers both models. Swap one in on either device and the charge IC recognises it 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 full charge and discharge on the bench. The BMS held charge termination at the correct 4.2V cutoff and the protection circuit tripped cleanly at the low-voltage threshold — no runaway, no false cutoffs mid-cycle.\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 charging is applied to an uncalibrated cell — prevents erratic percentage readings from the first day.\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 a fresh SBP-02 cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA new cell shutting the phone down at 20–30% is a voltage cliff problem, not a capacity problem. Under modem or screen load, the cell voltage drops sharply in that lower charge band — faster than the fuel gauge IC expects. The phone's low-voltage protection kicks in and cuts power before the gauge reaches zero. One full slow-charge calibration cycle usually brings the reported cutoff voltage in line with actual cell behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone will not power on after the SBP-02 sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells stored for extended periods can self-discharge below 2.5V per cell, which triggers BMS lockout — the protection circuit opens and blocks all current flow to prevent damage. A phone in this state will show no response to the power button and no charge indicator on plug-in. Connect it to a charger and leave it for 20–30 minutes without pressing anything — the charge IC on the phone board delivers a trickle current to bring the cell above the 2.5V recovery threshold. Once voltage clears that floor, the BMS re-initialises and normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409463410778,"sku":"BWCS-OX7SL-1","price":26.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43409463443546,"sku":"BWCS-OX7SL-2","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43409463476314,"sku":"BWCS-OX7SL-3","price":32.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OX7SL-big.webp?v=1779579784","url":"https:\/\/batteryweb.com\/products\/asus-halley-replacement-battery-37v-1100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}