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Which Battery Should I Use?

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i am trying to create a mini wooden tank run by windshield wiper motors

i am going to control the motors with a bunch of servo switches and wanted to know if it's ok to power both the ez-b (connected to about 5-6 servos) and both motors with the same battery

if so

which one of these should i buy (is it ok to go over 5 -- i don't want the fuse to blow up)

www.amazon.com/6-0ah-Battery-Razor-Electric-Scooter/dp/B005V0DLXM/ref=sr_1_42?s=electronics&ie=UTF8&qid=1344479402&sr=1-42&keywords=12v+rechargeable+battery

www.amazon.com/Generic-SLA-7-12-VOLT-BATTERY-Battery/dp/B000R9PYEQ/ref=sr_1_16?s=electronics&ie=UTF8&qid=1344479299&sr=1-16&keywords=12v+sealed+lead+acid+battery

www.amazon.com/Elk-ELK-1280-Sealed-Lead-Battery/dp/B000HB03MM/ref=sr_1_2?s=electronics&ie=UTF8&qid=1344370551&sr=1-2&keywords=12v+sealed+lead+acid+battery

www.amazon.com/gp/product/B0010Z4MDK/ref=ox_sc_act_title_1?ie=UTF8&smid=A1WQSUFM2GVFFG


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#9  

Do you have the wiper motor running amps and stall current specifications?(I assume they are 12v) Have you measured the motor resistance with an ohmmeter? Your choice of batteries and motor controller will depend on this info.

As for the EZ-B power requirements, see the ez-b Technical Manual. Once again it will depend also on how many servos you use and how much current they are rated for. Usually found on the servo data sheet.

EZ-B Tech Manual

Belgium
#10  

@wallekid1

cool pic's at instructables ! What I can advise for the use of wiper motors is hooking them up with a ESC to the EZ-B. I wrote about this a few times over here. They are easy to connect with external battery and you only need one port for each motor on the EZ-B.

Have a look at this:

ESC 12v-10/15A

and this thread from a while ago:

ESC motor control

Best regards,

PhG

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