Software

The DeathAdder V3 Hyperspeed is fully compatible with both Synapse 3 and Synapse 4 Beta, though for stability reasons, the former has been elected for this review. Synapse 3 is embedded into an overarching software suite called Razer Central. From there, it is possible to install additional optional modules, such as Chroma Connect, Chroma Studio, or the highly sophisticated macro editor.

All settings are accessible through five tabs. "Customize" houses button remapping, which also includes a HyperShift function to enable a second set of button maps that can be accessed upon pressing a dedicated shift button. "Performance" is used to adjust CPI for up to five color-coded levels, ranging from 100 to 26,000 CPI in increments of 50. Any non-native values will be truncated to native ones. Polling rate can be set to 125, 500, or 1000 Hz in wired operation. "Calibration" allows one to adjust the lift-off distance between two presets (1/2 mm). The fourth tab, called "Power," enables one to set the idle time (in minutes) after which the mouse enters sleep mode, as well as the battery status percentage at which Low Power mode is enabled. The "Advanced" tab contains a new acceleration function, which allows setting different curve types, along with angle rotation adjustment. Both of these settings are saved to the on-board memory. Lastly, profile management is available, too.

All setting changes are applied immediately and saved to the on-board memory, so the software does not need to be running (or be installed) all the time. On my system, Synapse had a RAM footprint of 402 MB on average when running in the foreground, which doesn't change when minimized, be it to the taskbar or system tray. Upon exiting the application, several processes with an overall RAM footprint of 188 MB keep running. Remarkably, these processes continue to load if Synapse is set to not auto-start with Windows. The most convenient way of terminating these processes is to run any recent Razer mouse firmware updater.

Battery Life

Razer cites a battery life of up to 100 hours at 1000 Hz and up to 20 hours at 8000 Hz, if used in conjunction with the HyperPolling Wireless Dongle. The software includes a percentage-based battery life indicator with single-digit accuracy, though a fuel gauge IC is not present, which is why it is unsurprising that even after five hours of usage at 1000 Hz, it still showed 100%. Thus, I'm unable to gauge expected battery life.

After not moving the mouse for a period of time set in Synapse, the DeathAdder V3 Hyperspeed enters a sleep mode from which it can be woken up by moving the mouse, but not by clicking a button.

Using the included USB Type-A to Type-C charging cable, I measured the charging speed during the constant current stage, which sits at 0.149 A when lifted and 0.146 A when not lifted. The battery has a capacity of 306 mAh (3.87 V) and utilizes a 3-pin JST connector.