Battery wiring in parallel question

[equate975]

I'm working on this project with low volt rechargeable batteries. Right now I have 10 li-ion batteries wired in parallel. I want to boost the life of the battery, so I was thinking about putting like 30 of them in parallel.

I think backwards a lot, so I wanted to double check this before I went any further. But would this place more strain on the charger? Or just increase charge time?

I guess all of this hinges on if the control circuitry can handle it all...

[EricT]

I would think that it would just increase the charge time. In essence, you have taken a bunch of small batteries and wired them to act as one giant battery with a higher amp hour rating yet it outputs the same voltage.

[AndrewBird]

When wired in series, you add the voltage together, but end up with the capacity of one battery (assuming they are all the same capacity).

When wired in parallel, you add the capacity together, but end up with the voltage of one battery (assuming they are all the same voltage).

When in series, it will only take as long to charge as one battery.

When in parallel, it will take longer as there is more capacity.

[Wh33lhop]

I think he's asking whether it will blow the charger, not to restate the basics of series and parallel wiring.

Any charger worth two shits will have a current limiter in it, I doubt you have to worry.