How to enable the Battery Health Optimizer feature in Razer Synapse

| Answer ID: 9681

This article shows how to enable the Battery Health Optimizer feature in Razer Synapse.

Effective February 3, 2026, Razer Synapse 3 will no longer receive updates or support cloud services. After this date, cloud syncing of configurations across PCs using the same Razer ID will be disabled.

Note: Your installed devices will continue to be configurable in Razer Synapse 3. However, if you uninstall these devices completely, you will need to upgrade to Razer Synapse 4 to continue customization.

Download Razer Synapse 4 and migrate your existing Razer Synapse 3 profiles using the Profile Migration Tool to retain access to your configurations. See How to migrate your Razer Synapse 3 Profile to Razer Synapse 4 for instructions.

When the Battery Health Optimizer feature is enabled, the battery will stop charging when it has reached the limit specified even though your device is still plugged in. Enabling this feature will protect your battery and prolong your battery life.

Note: The battery level will drop from 100% to 95% even when plugged in and then it will charge back up to 100% and the cycle repeats.

Feature is available for the following models:

Battery Health Optimizer features:

  • Works when charging with PD through USB-C
  • Works when charging with Power Adapter of the same connector but of lower wattage
  • Charges until the limit even if the Razer Blade is shut down
  • When charging limit is reached and a new limit is set, Battery Health Optimizer charges and maintains the new limit

Step-by-step process on how to enable the Battery Health Optimizer in Razer Synapse

Select Razer Synapse version

Razer Synapse 4

  1. Open Razer Synapse 4.

    Note: Download the latest version of Razer Synapse 4 and update your device to the latest firmware. To download the firmware, click on the models listed above and go to "Drivers & Downloads".
  2. Go to “BATTERY”.

    Razer Synapse 3 Display

  3. Toggle the ‘BATTERY HEALTH OPTIMIZER” switch to enable this feature.

    Battery Charge Limiter  page

  4. Set your preferred charging limit.

    Note: The limit is set from 50 to 80%.

Razer Synapse 3

  1. Open Razer Synapse 3.

    Note: Download the latest version of Razer Synapse 3 and update your device to the latest firmware. To download the firmware, click on the models listed above and go to "Drivers & Downloads".
  2. Go to “SYSTEM” > “BATTERY”.

    Razer Synapse 3 Display

  3. Toggle the ‘BATTERY HEALTH OPTIMIZER” switch to enable this feature.

    Battery Charge Limiter  page

  4. Set your preferred charging limit.

    Note: The limit is set from 50 to 80%.

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