I am currently using the very arbitrary TES1-4902 to cool water (small amounts) using a 5V 2.4A USB Battery Pack (2 Peltiers TES1-4902, 2 5V 2.4 A USB Battery Packs = 5V 4.8A)

  • Recently, it has come to my attention that a different Peltier setup may be able to increase my efficiency, thus giving me more "bang for my buck".

The current situation that I am in is that I need to achieve the maximum cooling power to cool small amounts of water as quick as possible; however, I need to reduce power consumption so that instead of buying two 5v 2.4A USB battery packs I can buy 1, 3.4 A USB battery pack to support my project and thus reduce my price.

I know that the more power you put into a peltier, the cooler it gets, so less power is counter-intuitive: so I will split my question into two parts:

  • 1) Is there a more efficient Peltier (where the rated IMAX/VMAX/DT is more efficient than what I have) that runs on a 5V 2.4A batterry, that takes into account more power is needed to start the Peltier than to run it continuously?

    • How about a 5v 4.8A battery?
  • 2) Using a 3.4 AMP, 5V USB Battery pack, is there any way I can achieve a similar cooling effect than what I currently have (TES1-4902, 5V 4.8A (2 of them)? by using a more efficient peltier?

Thank you so much, while someone answers me I am learning how to read data sheets more efficiently; however, so many of you are much more knowledgeable than me I thought it may be useful to ask you guys who have been so helpful in the past.



marked as duplicate by Brian Drummond, Sparky256, Voltage Spike, winny, PeterJ Jan 24 '18 at 14:26

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