diff --git a/src/components/battery.ts b/src/components/battery.ts
index b7b4642d..a08751db 100644
--- a/src/components/battery.ts
+++ b/src/components/battery.ts
@@ -52,7 +52,7 @@ export const batteryElement = (
               unit: battery.state_of_charge.unit ?? "%",
               unitWhiteSpace: battery.state_of_charge.unit_white_space,
               decimals: battery.state_of_charge.decimals,
-              accept_negative: undefined,
+              accept_negative: true,
               watt_threshold: config.watt_threshold,
             })}
           </span>`