{"product_id":"socketmobile-sonim-xp7-replacement-battery-38v-4700mah-li-ion","title":"Socketmobile Sonim XP7 Replacement Battery BAT-04800-01S 3.8V 4700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSocketmobile Sonim XP7 Series — 3.8V Li-ion Replacement Battery (BAT-04800-01S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V Li-ion battery at 4700mAh replaces part BAT-04800-01S in the Sonim XP7 and XP7700 rugged smartphones. It also fits the Sonim XP6 and XP6700. All four models share the same battery bay dimensions and BMS handshake protocol.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eXP6 and XP7 platform compatibility:\u003c\/strong\u003e\n    Sonim built the XP6 and XP7 lines on the same physical battery form factor — 63.60 x 44.10 x 12.10mm — with matching connector pinouts and the same BMS communication protocol. One cell fits all four models 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 a full charge and discharge cycle on the XP7700. The BMS accepted the cell on first insertion, reported state-of-charge correctly after calibration, and thermal readings stayed within normal bounds throughout the charge cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installation, disable fast charging and run one full discharge-charge cycle at standard rate. This lets the fuel gauge IC map the new cell's 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 XP7 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Sonim XP7 runs a push-to-talk radio stack and LTE modem simultaneously under load. That combination pulls high current spikes. A fresh replacement cell with an uncalibrated fuel gauge IC can report 25% remaining while actual cell voltage drops below the BMS cutoff threshold under that load — triggering an abrupt shutdown. The fix is to complete one full uninterrupted discharge to below 5% and then a full charge to 100%. After that single cycle, the coulomb counter has enough data to track real cell capacity accurately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB fast charge not activating on first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn first insertion, the BMS in the replacement cell has not yet completed handshake verification with the phone's charge IC. The XP7's charging controller defaults to standard 5V\/1A input until it confirms BMS compatibility — fast charge protocols stay locked out for the first cycle. This is normal behaviour, not a fault. Complete one full charge at standard rate, then reconnect the fast charger — the handshake completes and high-current charging activates from the second cycle onward.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391998394458,"sku":"BWCS-SXP670SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391998427226,"sku":"BWCS-SXP670SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391998459994,"sku":"BWCS-SXP670SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SXP670SL-1.webp?v=1779142875","url":"https:\/\/batteryweb.com\/products\/socketmobile-sonim-xp7-replacement-battery-38v-4700mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}