Battery module interval sometimes doesn't work

[BBaoVanC]

Describe the bug
Sometimes the battery module will just continuously update multiple times a second, ignoring the configured interval (or default 60 seconds).

To reproduce
I have no idea, it just happens sometimes. I don't see any errors or warnings in the log and haven't found any specific condition to cause it. Once it starts happening, it keeps doing it for a while even if I restart waybar.

// vim: ft=jsonc
{
    "height": 30,
    "spacing": 4,
    "position": "top",
    "layer": "bottom", // prevent covering up floating windows

    "reload_style_on_change": true,

    "modules-right": [
        "battery",
    ],
    "battery": {
        "states": {
            "warning": 30,
            "critical": 15,
        },
        "format": "{icon} {capacity}% {power:.3g}W",
        "format-charging": "󰂄 {capacity}% {power:.3g}W",
        "format-plugged": " {capacity}%",
        "format-alt": "{icon} {time} ({power:.2g}W)",
        // "format-good": "", // An empty format will hide the module
        // "format-full": "",
        "format-icons": ["", "", "", "", ""],
    },
}

Expected behaviour
The battery module should respect the interval set in the config.

Environment

• Waybar version (waybar --version): v0.15.0
• Installed from (distro package / source / other): Arch Linux package
• Compositor and version (Sway, Hyprland, River, …): niri 26.04 (8ed0da4)

Debug output
Run waybar -l debug and paste any relevant output:

Nothing really relevant, other than the "Discharging" spam (which coincides with the updates) due to another bug. It does say the interval is correct though:

[2026-08-13 22:35:32.377] [debug] battery: worker interval is 60000

Additional context
Anything else that might help.