About this replacement
Razer Blade 17 Early 2022 — 15.4V Li-Polymer Replacement Battery (RC30-0423)
This is a 15.4V, 5300mAh (81.62Wh) lithium-polymer replacement battery for the Razer Blade 17 Early 2022 and Blade 17 RTX 3080 Ti. OEM part number RC30-0423. It fits both Blade 17 variants that share this battery bay format and connector pinout.
- Blade 17 Early 2022 and RTX 3080 Ti compatibility: Both models use the same 15.4V four-cell pack with an identical connector and BMS handshake protocol. The RC30-0423 part number covers the full run of these two variants — the board expects the same EEPROM signature from either cell.
- Bench tested on actual hardware: We cycled this cell on a Blade 17 chassis, confirmed BMS handshake at power-on, and verified charge acceptance across the full 0–100% range. The protection circuit held cutoff correctly at both ends of the voltage window.
- Post-install calibration on the Blade 17: After fitting, run the laptop on battery until it hibernates from low charge, then charge uninterrupted to 100% without interruption. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears on the first boot after a cell swap.
Why the Blade 17 reports poor battery health immediately after a cell swap
The Blade 17 BIOS reads cycle count and health data from the EEPROM embedded in the old cell. When a new cell goes in, that EEPROM data resets, and the BIOS interprets the mismatch as a degraded or unknown battery. This is a firmware read issue, not a fault with the replacement cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite the learn cycle against the new cell's actual chemistry. After one or two full cycles, the reported health figure corrects itself.
Blade 17 shutting down at 20–30% charge shown on screen
This happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. Under full CPU and display load, the Blade 17 draws enough current to expose a voltage cliff that the uncalibrated gauge misreads as 25% remaining. The pack voltage has actually dropped below the safe floor, so the BMS trips the circuit before the OS can log a low-battery warning. Run two full discharge-to-hibernate cycles and the fuel gauge IC will map the new cell's actual voltage curve — shutdowns at false-high percentages stop after calibration is complete.