Enjoy low transaction fee by using ViaBTC free accelerator.

[hosseinimr93]

Is there a particular time to know when they accept unconfirmed transaction in their website because I tried to test some transactions and it's saying  submission are beyond limit all the time.

They accept 100 transactions for free accelerations per hour. If there is no remaining hourly free transaction, try in the next new hour.

What I know about RBF is that if you don't enable it in your transaction, don't expect to bump your fee regardless of the mode you are using, it will remain unconfirmed for long time until then few comes down.

Some nodes and miners have enabled full RBF in their setting and accept the replacement transaction even if the original one has not been flagged as RBF.
For more information on how you can do so, click here and read the post I made in another thread.

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[nelson4lov]

Who knows if they are doing that to make people use more of their paid services because if they continue to help, it will be as if the  are cheating those who are paying high fees for including their transactions in any block they mine successfully.

It's a good service actually. It is already unfair to the new users or users who aren't so rich to spend exorbitant amounts on transactions when it should be naturally be cheaper than the average transaction cost that banks or credit card companies charge. ViaBTC has been doing a noteworthy services and they've been doing it for over a year which is good for the ecosystem.

Is there a particular time to know when they accept unconfirmed transaction in their website because I tried to test some transactions and it's saying  submission are beyond limit all the time.

In my experience and also based on the replies of other users on the forum, the best time is when a lot of the free Accelerator users are asleep and it's even the best time to make transactions as gas fees temporarily go down during those periods. You should be targeting UK/US timezones for that. Anywhere between 12am UTC to 4am UTC.

[serjent05]

What if one unconfirmed transaction is submitted to some different Tx accelerators?

There will be no issue if one is submitting his transaction to different tx accelerators.  At the end of the day, it will be confirmed once one of those accelerators pick up your transaction.  Btw, other that claimed to be accelerators are just rebroadcasting your transaction, they don't do thing like VIABTC did, picking up your transaction once they mine a block.

I guess there will be no issue for mining pools that provide tx accelerators to avoid technical issues like chain reorganization with appearance of unconfirmed transactions submitted to their tx accelerators.

I believe there will be no issue since if your tx has been picked up by one of the accelerator miners, it will just return invalid to others (since it is already confirmed) and will just skip your TX ID and go on with its task.

[dansus021]

I always see the viabtc free accelerator shows 0 free remaining, so I never had a chance to try it. and never try the paid service because I think would be same if we are using RBF or CPFP method

[hosseinimr93]

In my experience and also based on the replies of other users on the forum, the best time is when a lot of the free Accelerator users are asleep and it's even the best time to make transactions as gas fees temporarily go down during those periods.

There is no gas fee in bitcoin. The gas fee is the term used for some altcoins like ethereum.
In bitcoin, we have fee rate and miners prioritize transactions based on the the fee paid for each (virtual) byte of data.

and never try the paid service because I think would be same if we are using RBF or CPFP method

The fee charged by ViaBTC paid service is much higher. It would be so cheaper to use RBF or CPFP method.

[FinneysTrueVision]

I always see the viabtc free accelerator shows 0 free remaining, so I never had a chance to try it. and never try the paid service because I think would be same if we are using RBF or CPFP method

The 100 free hourly slots get filled up quickly. The best time to submit a transaction is at the start of each hour. Whenever I have a transaction pending for a long time I will keep the ViaBTC page open in the background and watch the time closely so I can be one of the first people to submit.

[Antotena]

I always see the viabtc free accelerator shows 0 free remaining, so I never had a chance to try it. and never try the paid service because I think would be same if we are using RBF or CPFP method

The 100 free hourly slots get filled up quickly. The best time to submit a transaction is at the start of each hour. Whenever I have a transaction pending for a long time I will keep the ViaBTC page open in the background and watch the time closely so I can be one of the first people to submit.

So after waiting for about 9 days of unconfirmed transaction. I did tested the Viabtc accelerator and these are my observations.

Immediately I saw this thread, I tested the accelerator but I keep getting no free submission available, u should try again after an hour and I did again but seems they the 100 free transaction get filled up pretty fast. What I did was, I let it be and follow some suggestions I had in some reply. I waited around 12pm UTC time to test it and I waited exactly 1 minute before the new hour activated.

Immediately I saw 12:00 I refresh the page an I included my transaction and it says successfully included and after when I try to refresh the page again, the remain slots were quickly fill in less than a minute. So you, you have to be very fast with good internet. After an hour, my transaction of 30 sats/ vbytes was confirmed after 9 days of sleeping in the mempool.

[Coyster]

So you, you have to be very fast with good internet. After an hour, my transaction of 30 sats/ vbytes was confirmed after 9 days of sleeping in the mempool.

It is good that your transaction was finally confirmed by ViaBTC after a long time in the mempool, i want to add that ViaBTC free accelerator is congested right now, but that is not how it always is, the free accelerator is very congested right now because the memepool is also very congested and the fee rate is so high. Thus there are too many people who don't want to pay such a high fee, so they would rather use ViaBTC if/when they meet the requirement; when the mempool cools down a little bit, the free accelerator would also become less congested.

[siniminomorocomunisakito]

It is because the mempool is congested which makes more people to use the free accelerator.

Everyone is looking for lower transactions and faster confirmation times and in fact half the network accepts and the other half rejects with quite large fee variations as of now.

Even though we know that lower fees may result in slower confirmation times and if we are willing to pay a slightly higher fee the results are still delayed it seems like They are trying to force us to jump.

[Winterfrost]

ViaBTC accelerator services will require payment for their services, so it's not free. Yeah, it's not worthwhile unless your amount is small or if you're tight on cash. For example, if I have a substantial withdrawal, let's say $4k, they might demand almost $500 or even more, which is very high. However, when the amount is low, perhaps below $100, the fee becomes lower.

[Richbased]

We can still enjoy using low fee for our bitcoin transaction despite the mempool congestion that has resulted to high fee for transactions to be confirmed. ViaBTC free accelerator is what you need, this tool is very easy to use and beginners can use it without any  problem. Viabtc is a mining pool, and when you use their tools, they will iclude your transaction in the next block that they will mine.

Though this information seems to be very helpful but yet the duration of time needed before a transaction with low fee can be confirmed still takes so much time so this method are mostly helpful to people who ain't in a hurry about their transactions being confirmed but for an urgent transaction to be confirmed immediately it still requires a high transactions fee but however, this viaBTC tool will really assist lower fee transactions to be included in the next mining block thereby making transactions not to take much longer than it would have taken without the accelerator

[Findingnemo]

ViaBTC accelerator services will require payment for their services, so it's not free. Yeah, it's not worthwhile unless your amount is small or if you're tight on cash. For example, if I have a substantial withdrawal, let's say $4k, they might demand almost $500 or even more, which is very high. However, when the amount is low, perhaps below $100, the fee becomes lower.

ViaBTC does offer 100 TXs to be accelerated for free of cost if the size of the TX is below 500bytes and the fee is over 10kb/byte but you can't find a spot in the 100 per hour when the network is congested.

And the fee for acceleration is based on the size of the transaction not based on the value as far as I know and its not really a portion like you said.

For example, look at this below,