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Topic: Rechargeable battery for 3 motors (Read 722 times) previous topic - next topic

MarkT

You need to know both the peak current requirements of all your motors and the average current in normal use - the latter means you can estimate the battery capacity requirements for a given time of use.

Your battery will need to provide enough current (A) for the peaks and have enough capacity (Ah or mAh) to keep going for long enough.
[ I won't respond to messages, use the forum please ]

Repolahti

If you have no exact figures how heavy load you will give to battery, you may just try some battery, like lipo you thought earlier (1000mAh 3S1P 25C). It can be ok, because your stepper motors are small and servo hardly needs much power.

halflings

Thank you guys for all these insights.

I think I'll just go for the LiPo I've posted earlier as I don't have any much infos about the motors and see how it works out !

halflings


Repolahti


Oh, just a last question:

How can I recharge this ( http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=16331 ) kind of batteries ?


You need a lipo-charger. Like this:
http://www.hobbyking.com/hobbyking/store/__6478__IMAX_B6_AC_Charger_Discharger_1_6_Cells_GENUINE_.html
Maybe you need (power cord) adapter for your country too. Or new cord. It is same type as in laptop comters, from "wall" to  laptop power unit.
And how to use charger:
http://www.youtube.com/watch?v=okKhW2JouOI
Always use "balance" charhing mode.

Next charger can make the job, but if you will buy bigger batterys, charging will take long time.

http://www.verticalhobby.com/kauppa/balancing-charger-for-cells-lipo-110-220v-p-719.html

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