{"product_id":"coolpad-catalyst-3622a-replacement-battery-37v-2200mah-li-polymer","title":"Coolpad Catalyst 3622A CPLD-390 Replacement Battery 3.7V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCoolpad Catalyst 3622A — 3.7V Li-Polymer Replacement Battery (CPLD-390)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2200mAh lithium-polymer cell built to the CPLD-390 specification. It fits the Coolpad Catalyst 3622A smartphone. Voltage and form factor match the original — dimensions are 71.00 x 52.98 x 5.00mm, so the cell seats flush in the battery bay.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCatalyst 3622A fitment:\u003c\/strong\u003e\n    The 3622A uses a fixed connector pinout tied to a basic fuel gauge IC. This replacement carries the same pin configuration and impedance profile, so the charge IC recognises it without a handshake error on boot.\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 a 3622A unit. The BMS accepted the cell, held voltage above 3.5V under display and modem load, and showed no unexpected cutoff during the test runs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable fast charging if available and run one full discharge down to auto-shutoff, then charge to 100% uninterrupted. This gives the fuel gauge IC one clean reference cycle against the new cell's discharge curve before the OS starts reporting percentage from it.\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  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still using the discharge curve it mapped on the old, degraded cell. A fresh cell with higher energy density hits a different voltage cliff point than the IC expects. The phone interprets the voltage drop under modem or screen load as a critical low-battery condition and shuts down — even though real charge remains. One complete discharge-to-shutoff and full recharge cycle resets the coulomb counter and corrects the curve. After that cycle, shutdowns at 20–30% typically stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone not powering on after the replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-polymer cells self-discharge during storage. If this cell dropped below 2.5V, the BMS may have entered lockout mode to prevent over-discharge damage. Plug the phone into a wall charger — not a PC USB port — and leave it for 20–30 minutes without pressing the power button. The charge IC needs time to push a recovery trickle current through the BMS lockout threshold. Once the cell climbs back above 3.0V, the BMS releases and the phone should power on normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392025952346,"sku":"BWCS-TMC362SL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392025985114,"sku":"BWCS-TMC362SL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392026017882,"sku":"BWCS-TMC362SL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TMC362SL-1.webp?v=1779142963","url":"https:\/\/batteryweb.com\/products\/coolpad-catalyst-3622a-replacement-battery-37v-2200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}