docs: Remove specific time threshold from low-balance docs

accounts-billing/billing.mdx

@@ -22,7 +22,7 @@ You can view your current balance and recent transactions on the Billing page at
 
 Runpod monitors your account balance and takes protective action when funds run low:
 
-- When your balance is projected to cover less than 10 seconds of remaining runtime, Runpod automatically stops all your Pods.
+- When your account balance is no longer sufficient to cover your remaining runtime, Runpod automatically stops all your Pods.
 - Stopped Pods retain their volume storage, but you continue to accrue storage charges.
 - If your balance is completely depleted, Pods and their associated storage may be deleted.
 

pods/pricing.mdx

@@ -56,7 +56,7 @@ Runpod is not designed for long-term cloud storage. Back up critical data to you
 
 ## Account limits
 
-- **Minimum balance**: If your balance covers less than 10 seconds of remaining runtime, Runpod stops all Pods to preserve data volumes. Set up [automatic payments](https://www.console.runpod.io/user/billing) to avoid interruptions.
+- **Minimum balance**: If your account balance is no longer sufficient to cover your remaining runtime, Runpod stops all Pods to preserve data volumes. Set up [automatic payments](https://www.console.runpod.io/user/billing) to avoid interruptions.
 - **Spend limit**: Default limit of \$80/hour across all resources. [Contact support](https://www.runpod.io/contact) to increase.
 
 ## Track your costs