Connecting two batteries for an Iontophoresis machine

Thread Starter

Frederik85

Joined Mar 9, 2016
1
Hi,

Just checking, here a question of an electronics n00b, I am making a new Iontophoresis machine and would like to connect an (Ultracell) 12V battery to another (Ultracell) 6V battery like they do with 6V batteries in the video below. Can I do that and get ~18V and/or might I screw up my batteries in some way?


Thank you
 

#12

Joined Nov 30, 2010
18,210
Sure you can put batteries in series to get more voltage. That's what they are doing internally.
Just be aware of the amp-hour ratings. Two batteries the same size with different voltages...the higher voltage battery will run out of juice before the lower voltage battery.
 
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