Two Batteries in Parallel - Twice the Available Current?

[concentriccircles]

Hi folks, quick question; if my mech mod has two Samsung INR18650-25Rs wired parallel in it, does that mean my available current is now 50 A so I can safely build down to about 0.09 ohms? Or am I making that up? Electronics classes were a long time ago.

 

[Bobw1951]

No that's Serial - parallel means they last twice as long

 

[concentriccircles]

No that's Serial - parallel means they last twice as long

I thought serial doubled the voltage?
Edit: Reading from here Serial and Parallel Battery Configurations and Information it looks to me like it's saying they have twice the charge holding capacity and have twice the current handling ability.

 

[EthelKing]

Here you go...

Serial and Parallel Battery Configurations and Information

Hope it helps.

Edit: cancel that! Snap!

 

[concentriccircles]

Here you go...

Serial and Parallel Battery Configurations and Information

Hope it helps.

Edit: cancel that! Snap!

lol, thanks, so do you think that confirms what I thought, or am I reading it wrong?

 

[EthelKing]

My understanding is batteries in series keeps the capacity (mah)the same and increases the voltage; in parallel the capacity increases and the voltage remains the same.

That is the extent of my expertise, I'm afraid. I don't sub ohm, so sit tight - someone else is bound to know the answer.

 

[tinyredpostbox]

lol, thanks, so do you think that confirms what I thought, or am I reading it wrong?

you are correct. the batteries will "load share" when run in parallel. if running a 0.09 ohm coil and assuming both batteries are fully charged at 4.2 volts, you will pull 46.7A total, which will be equally shared between batteries (i.e. 23.35A each). thats some serious wattage!

make sure your batteries are both fresh/fully charged when you start out so they drain equally, and always replace in pairs. and mind your lungs

 

[concentriccircles]

you are correct. the batteries will "load share" when run in parallel. if running a 0.09 ohm coil and assuming both batteries are fully charged at 4.2 volts, you will pull 46.7A total, which will be equally shared between batteries (i.e. 23.35A each). thats some serious wattage!

make sure your batteries are both fresh/fully charged when you start out so they drain equally, and always replace in pairs. and mind your lungs

That's just what I wanted to hear. Been sticking to 0.18 or higher on my single cell mods, which is what the dual zipper I have on there right now reads at (it hits like a boxer), but I have a wooden dual cell mech from fast tech that just "arrived at overseas" so I'm making a plan for what I can put on it.

 

[tinyredpostbox]

That's just what I wanted to hear. Been sticking to 0.18 or higher on my single cell mods, which is what the dual zipper I have on there right now reads at (it hits like a boxer), but I have a wooden dual cell mech from fast tech that just "arrived at overseas" so I'm making a plan for what I can put on it.

just checked out the Samsung INR18650-25R batteries, so far i have only found spec sheets that suggest they are rated at 20A continuous

http://www.vapeking.com.au/content/Samsung-25R.pdf


just thought you might want to know if you are planning to push them to their limits

 

[concentriccircles]

just checked out the Samsung INR18650-25R batteries, so far i have only found spec sheets that suggest they are rated at 20A continuous

http://www.vapeking.com.au/content/Samsung-25R.pdf


just thought you might want to know if you are planning to push them to their limits

Cheers, I'm sure I saw them rated at 25 A continuous when I looked into them and bought them, but best to play it safe.


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