e-bike power pack question

[MetroMPG]

We're talking about voltage under load, not resting voltage.

If you hook up a voltmeter to a single battery and watch it as you ride, you'll see it fall while delivering current. Then it recovers when you take the load off it.

When I'm driving the car and pulling 70-100A from the pack, a single 6v battery (closer to 6.35v when full, actually) will be hovering around 5.8v while delivering that current. And as the pack drains, that "under load" voltage sags even more.



Try it out.

[Lazarus]

OK now I'm following you. I guess I need to go to the poll question about instrumentation. Just to many dang wires running around.

[Ryland]

I have a volt meter on the handle bars of my bike so I can moniter the voltage drop of the batteries, it's pretty amazing to see how they drop, I also have a loop of wire that I can hook the DC clamp on amp meter to, to see how many amps I'm drawing, it's fasinating to track that information.

[Lazarus]

EM Base we have instrumentation I got a small DVM and got it hook up tonight. I'll see how it does tomorrow.