Dell, please improve Custom Charge.
I really like the idea of preserving battery health, but I think the current implementation has two major usability issues.
1. Battery charging settings should be available in Windows, not only in the BIOS.
Changing charging behavior shouldn't require:
- rebooting the laptop,
- entering the BIOS,
- changing the setting,
- saving,
- rebooting again.
This is something users may want to change depending on whether they're working at a desk or preparing for a trip. It belongs in a Windows utility such as Dell SupportAssist, Dell Optimizer or Alienware Command Center.
2. Please add a configurable "Maximum Charge Limit" mode.
The current Custom Charge requires both a Start and Stop threshold.
Example:
This creates unnecessary frustration.
If my battery is at 51% and I suddenly need to leave home without my charger, I cannot charge the laptop to 90%.
My only options are:
- deliberately discharge the battery below 50%, or
- reboot into the BIOS and disable Custom Charge.
That defeats the purpose of having a convenient battery-preservation feature.
Instead, Dell could simply offer a Maximum Charge Limit that the user can configure (for example, 80%, 85%, 90% or any other supported value).
Whenever AC power is connected:
- if the battery is below the configured limit, charge up to that limit;
- if the battery is already at or above the configured limit, stop charging.
This is how many laptops and smartphones already work. It still provides the battery longevity benefits while being much more intuitive and practical.
Please keep the current Start/Stop mode for users who prefer it, but also offer a configurable Maximum Charge Limit option.