Now the first batch is consumed,the second batch will be ready .
Your sentence doesn't really make sense. I think you mean this. When the first batch is consumed, the second batch will be ready.
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Your sentence doesn't really make sense.
I think you mean this.
When the first batch is consumed, the second batch will be ready.
More natural is eg By the time the first batch is consumed,, the second batch will be ready
Clive
I believe you meant this:
Now that the first batch is finished, the second batch will be readied to begin processing.