Efest 18650 And .25 SUB OHMS

[paulb787]

Is that battery ok to use at .25 ohms if my VTC5 dies? Efest 18650 1600mAh 30A Flat Top Sold in Pairs | eBay

THANKS

 

[jpcwon]

Is that battery ok to use at .25 ohms if my VTC5 dies? Efest 18650 1600mAh 30A Flat Top Sold in Pairs | eBay

THANKS

Well, my handy dandy Ohms law calculator says that at 4.2 volts (fully charged battery), you'll be pulling 16.8 Amps with a .25 Ohm build....so yeah, you should be OK....

Just to be safe though, I wouldn't take long pulls....

But if you are asking and are not familiar with Ohms law, then you might want to educate yourself on it.....it is essential knowledge when using a mechanical device IMO....

 

[Cullin Kin]

Looks good to me. However, you will not have very long battery life.

 

[paulb787]

Thanks and just to learn you are using amps right? its 30amp rated and at 4.2 its 70 watts/17 amps/. So its under

 

[jpcwon]

Yep, amps. Think of voltage as the amount of electricity coming from your battery, and Amps are the rate at which that electricity is delivered. So if you pull too many amps, then your battery will struggle to deliver that 4.2 volts. As such, you will tax your battery which is never a good thing.....So it's important to know what the limits of your battery are, and how your build affects the delivery of electricity from the battery...

If you're still confused, here's some good reading...

HowStuffWorks "What are amps, watts, volts and ohms?"