Batteries in parallel or series

[emsvapor]

I'm thinking of getting into the mech side of vaping and am having a hard time getting a grasp of the amp limits of batteries run in parallel

I understand that in series a dual 18650 will produce 8.4 volts and the amp limit of the batteries would be whatever they are rated. And in parallel they will produce 4.2 volts but I'm not getting the what happens to the amp limit in parallel.

I have 30 amp batteries so in parallel would the amp limit be 30 amps or would it double to 60 amps

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[savagebee]

It will not double, but you can use a +50% to get it. For example, if I have two 20 amp cells in parallel then they will push around 30 amps total.

 

[emsvapor]

It will not double, but you can use a +50% to get it. For example, if I have two 20 amp cells in parallel then they will push around 30 amps total.

So if I have triple 30 amp my amp limit would be 45 if I understand correctly

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[savagebee]

If you have triple I'm not sure if it's a continuous or variable/proportional increase. If you found some 30 amp cells (what batteries?) Then 2 in parallel would be 45 amps nominally

 

[emsvapor]

Sony VTC4

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[Slurp812]

In theory parallel cells amp limit absolutely will double. Should you do it? If one battery isn't making good contact, you could end up putting to low of a load on one cell. If one battery isn't making contact in a series setup, you got nothing. Be careful!