What the error means
OUT_OF_ENERGY means the smart contract exhausted its available Energy budget before execution finished. FAILED-OUT_OF_ENERGY in an explorer describes failed execution, not just a slow wallet refresh.
For a standard USDT transfer with confirmed execution failure, the token amount is not credited to the recipient. Network resources already consumed and any TRX burned to pay for them are not automatically refunded. A transaction being accepted by the network does not prove successful execution.
Why Energy ran out
The sending address may lack available Energy and enough TRX to cover the shortfall. The recipient state or the dynamic Energy model can also make an old estimate insufficient. No fixed Energy amount guarantees every transfer.
Another cause is a low fee_limit. It caps the contract call's Energy budget in SUN: 1 TRX = 1,000,000 SUN. A low limit can stop execution even with sufficient delegated Energy. This is a budget cap, not a fixed fee that will always be charged.
Check Tronscan first
Open the transaction hash on Tronscan. Inspect the final result, failure reason, sender, Energy Usage, Bandwidth Usage and Fee. Check the address's available Energy rather than relying only on an order notification.
- If the transaction is Pending or its outcome is unknown, wait for confirmation before creating another payment.
- If it is SUCCESS, do not send again: check the recipient address and token display in their wallet.
- If FAILED with OUT_OF_ENERGY is confirmed, address the cause before building a new transaction.
Prepare the next transfer with EZ Energy
Open the calculator on the EZ Energy website or @ezenergybot. Estimate Energy for your specific USDT transfer and review the current rental price, amount and duration. The recipient state and network parameters may change the estimate.
- Enter the public TRON address of the wallet SENDING USDT, not the recipient, an exchange deposit address or the USDT contract.
- Confirm your order, wait for delivery and check available on-chain Energy using the bot's resource check or Tronscan.
- Check Bandwidth and keep a small TRX reserve: Energy rental does not replace the network's other resource.
- Only after the previous transfer is confirmed failed and resources are checked, create a new transfer in your own wallet. Review its fee limit before signing.
Energy arrived but the error persists
Look at available Energy, not total delegation. Other transactions may have used the resource, or the rental may have expired. Verify the correct address on TRON.
Trust Wallet and other apps may refresh resources or fee estimates with a delay. Refresh the screen, but rely on the blockchain for the actual result. If Energy is sufficient, check fee_limit in the wallet or DApp. Contact its support if the setting is unavailable. Do not set an arbitrary maximum or repeatedly buy more Energy without diagnosing the cause.
When to contact support
If the issue continues, send EZ Energy support the failed transaction hash, public sender address and order ID. These help distinguish missing delivery from consumed resources, interface delays and wallet limits.
Energy rental needs public information only. Never share a seed phrase, private key or login code. Do not send USDT to an outside address to “unlock” a transfer. Other contract errors, such as REVERT or OUT_OF_TIME, need separate diagnosis.
FAQ
Did I lose my USDT?
For a standard USDT transfer with confirmed execution failure, the token amount is not credited to the recipient. Check the transaction result and balance. Consumed network resources may still be charged.
Why was TRX charged for a failed transfer?
Resources can be charged even when execution fails. If TRX was burned to cover them, renting Energy afterwards does not refund that charge.
Is 65,000 Energy always enough?
No. Recipient state, contract state and current network parameters affect usage. Get a current estimate for the actual transfer.
Will renting Energy fix the old transaction?
No. It prepares resources for the next attempt. After confirming failure and fixing the cause, build and sign a new transaction.
Can this happen with enough Energy?
Yes, for example if fee_limit is too low. Buying more Energy alone will not fix a wallet or contract restriction.
Sources
Technical facts are checked against official TRON documentation. Resource use can change with network and contract state.
Smart contract errors ↗FeeLimit and Energy cost ↗Estimating Energy ↗Account resources ↗
