Coolpad Modena CPLD-368 Replacement Battery 3.8V 2400mAh

Coolpad Modena Series — 3.8V Li-Polymer Replacement Battery (CPLD-368)

This is a 3.8V, 2400mAh Li-Polymer replacement battery for the Coolpad Modena and its T2-series variants (T2-00, T2-C01, T2-W01, and others). It replaces the original CPLD-368 cell when the existing battery no longer holds sufficient charge due to aging or damage. Dimensions are 81.14 x 54.00 x 3.70 mm — confirm fit against your existing cell before installation.

• Modena and T2-series compatibility: The T2-00, T2-C01, and T2-W01 all share the same battery bay dimensions, connector pinout, and BMS handshake as the standard Modena — which is why a single CPLD-368 cell covers the full range without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the Modena platform. The BMS accepted the cell without rejecting the charge cycle, and the protection circuit responded correctly to over-discharge cutoff thresholds at the expected voltage floor.
• Fuel gauge recalibration on first cycle: On first use after installation, disable fast charging and run one full discharge-to-charge cycle. This gives the fuel gauge IC time to map the new cell's discharge curve before high-current charging pushes current into an uncalibrated state — preventing erratic percentage readings from day one.

Sudden shutdown at 20–30% on the Coolpad Modena after a cell swap

A fresh cell can still trigger abrupt shutdowns at 20–30% because the fuel gauge IC was calibrated to the discharge curve of the aged original cell. When the modem transmits or the screen brightness spikes, current draw causes a sharp voltage dip that the gauge misreads as a critically low state-of-charge. The phone's protection circuit then cuts power even though real capacity remains. One full discharge-charge cycle — taken to actual flat and charged to 100% — resets the coulomb counter and aligns the gauge to the new cell's curve.

Phone won't power on after the replacement battery sat in storage

Li-Polymer cells in storage self-discharge slowly, and if the cell drops below approximately 2.5V per cell, the BMS enters a lockout state to prevent damage. The phone will show no response to the power button — not even a low-battery icon. Connect the device to a wall charger (not a USB port) and leave it for 20–30 minutes without pressing anything. Once the BMS detects the trickle charge bringing voltage back above the threshold, it unlocks and normal charging resumes. If the screen still shows nothing after 30 minutes, try a second charger — the issue is almost always insufficient input voltage from a weak USB source.