Think about all the different types of battery you can get. Even though they all look very different, they are all represented by the same symbol. This circuit diagram joins a cell, a switch and ...

Of course, that is larger voltage drop than the internal battery itself. Bummer. There is a way to get 200 amps out of a D-cell - have a whole bunch of D-cells in parallel. Lets say I have 200 ...

Many readers will have at some time or another built their own lithium-ion battery packs ... designed with sockets for all hundred cells, connected in parallel through individual series resistors.

E-bike batteries are, for the most part, a collection of 18650 batteries, packaged together and welded in series and parallel, attached to a battery management system (BMS). A "dead" e-bike battery ...

I will be talking about single-series (1sXp) cell configurations ... protection circuit connected to it, it’s a 50/50 chance that your circuit will power up once you insert the battery.