{"product_id":"cat-b30-replacement-battery-37v-1200mah-li-ion","title":"CAT B30 Replacement Battery 3.7V 1200mAh 1ICP5\/3450","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCAT B30 — 3.7V Li-ion Replacement Battery (1ICP5\/3450 1S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1200mAh Li-ion cell replaces the original battery in the CAT B30 rugged smartphone. It matches the OEM part number 1ICP5\/3450 1S1P and fits the B30's battery bay without modification. Dimensions are 53.00 × 33.90 × 5.70mm — confirm your bay before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCAT B30 fit:\u003c\/strong\u003e\n    The B30 uses a single removable cell on a 3.7V nominal rail. This replacement matches the connector tab layout and cell footprint, so the phone's charge IC and fuel gauge IC receive the correct voltage reference on startup.\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-discharge cycle on the B30 platform. The BMS accepted the cell without flag, and the charge IC stepped through its CC\/CV stages cleanly with no thermal trip.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable any fast-charge mode and run one complete discharge-to-charge cycle. The B30's fuel gauge IC was calibrated to the old cell's discharge curve — one full cycle lets it map the new curve accurately before you rely on the percentage reading.\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 CAT B30 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe B30's fuel gauge IC stores a learned discharge curve from the previous cell. When a new cell goes in, the stored curve no longer matches actual cell voltage under load. The modem radio and screen draw current spikes that collapse voltage on a fresh, uncalibrated cell — the phone reads 25% but the cell voltage drops below the 3.2V cutoff threshold under that surge. One full discharge cycle down to automatic shutdown, then a full charge, forces the coulomb counter to relearn the new cell's curve. After that, percentage readings track correctly and the premature shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCAT B30 not powering on after the replacement cell sat in storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge in storage. If this cell shipped or sat unused for several months, its resting voltage may have dropped below 2.5V per cell — the BMS lockout threshold. At that point the BMS disconnects the output rail entirely and the phone shows no response to the power button. Connect the phone to a wall charger, not a PC port, and leave it for 20–30 minutes without pressing anything. The charge IC will trickle current into the cell until voltage climbs above 2.8V, at which point the BMS re-enables the output rail and the phone will boot. If the charge indicator never appears after 30 minutes on a wall adapter, check the charger output is at least 5V 1A.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392113180762,"sku":"BWCS-CAB300SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392113213530,"sku":"BWCS-CAB300SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392113246298,"sku":"BWCS-CAB300SL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CAB300SL-1.webp?v=1779143848","url":"https:\/\/batteryweb.com\/products\/cat-b30-replacement-battery-37v-1200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}