• ### Understanding battery capacity: Ah is not A

- 29 May 2012

The discharge rate could be an issue, so that's one reason going with 15Ah is probably better. However, the higher capacity battery could be an issue for the charger, depending on how that works. But 14 is pretty close to 15, so I would just go with the 15Ah. I would be very surprised if the 12Ah didn't work, though, so if that somehow fits better or is much cheaper, it should be fine (don't forget the 15 will give you 25% more run time than the 12).

- Jan

• ### Understanding battery capacity: Ah is not A

- 27 March 2012

Hi.

Most NiMH chemistries will probably tolerate at least a few C discharge rate, so an AA should be able to deliver at least 5A, which is plenty for the motor you're describing.

I have no idea what you're asking with this solar stuff, probably because you have little idea. Among your likely confusions: weight is not at all enough to tell us how much power you need, and getting more current available in your batteries is not going to force more current into your motor.

You should not be putting batteries in parallel unless you really know what you are doing, which in this case you do not.

Maximum, optimal, and safe discharge rates are completely separate. Any maximum rating better still be safe, and there will be a wide range of safe discharge rates. Optimal in terms of energy delivered will probably be around a few mA over a month, maximum could be 20A for a few minutes.

- Jan

• ### RC servo speed control

- 19 March 2012

Have you read (and understood) these servo control posts at all? If you are serious about your question, please provide a little more detail about what you are trying to do.

- Jan

• ### Advanced hobby servo control using only a timer and interrupts

- 2 February 2012

Yes, the time between pulses will not be perfectly constant, but that does not matter. I think I wrote quite a bit about that in the earlier posts.

- Jan

• ### Introduction to Jan's blog

- 25 January 2012

Dan,

Thanks for the feedback. It looks like you are aware that this is not the most appropriate avenue for this discussion, so you might want to think about what prompted you to post here before trying to contact us some more conventional way. You do bring up two subjects that I think are worth discussing publicly.

- Jan

• ### Continuous-rotation servos and multi-turn servos

- 18 November 2011

Hello.

The servo is not made for continuous rotation, and it rotating continuously is a sign that you are asking it to go beyond its limit, which could cause it to be destroyed. The standard 1-2 ms range should get you close to the full turn, and you can gradually expand the range while keeping it centered at 1.5 ms to get to exactly one rotation of range.

By the way, you should direct questions like these to our forums or to more direct tech support.

- Jan