
mcbaker01
USA
Asked
— Edited
I have the wild thumper 4WD chassis.
I read somewhere that anything over 5V is a waste for the EZ-B. Not sure this is true...
IF this IS true, should I have two battery packs? 6V for EZ-B and a higher voltage, higher AH battery for the chassis?
I'm looking for the best solution, not the cheapest.
Can anyone recommend a link to buy the best battery pack?
Which chemistry do you recommend? I would prefer to avoid anything that is finicky as I can be hard on batteries.
@Troy, Thanks... I have had an ongoing interest in the Dagu "Wild Thumper" series and want to get the 6WD myself, so I tend to weigh in more so in a topic of personal interest
but have learned many, many, years ago that there is no single, correct way with technology, rather I try to give and get as many views as reasonable in-order to assemble my own direction as well as assist others..
@mcbaker01 I know your initial question was regarding battery's, but since the motor controller is so vital as well, here is a few components I have looked at that will hopefully assist you in your build. High Power Switch
And this motor controller may be overkill as it also combines a "rudimentary" brain
I think it can be master-controlled itself via the EZ-B. And as it is designed explicitly by Dagu for the "Wild Thumper" series it will do the job within all power and stall specs.
Dagu "Wild Thumper" Dual 15A Motor Robot Controller
I'm looking at specs online for the 4WD chassis.
One site is saying that you need a 14A controller because the chassis can draw as much as 14A for brief periods such as reversing direction at full speed.
The bridge offered on this site is only 2.5A. Is that really going to work?
Does the 2.5A controller allow for a higher peak current?
If you want what works well and not the cheapest, then go for a properly rated H-bridge for that chassis. Based on specs each motor could draw up to 5.5a in a fully stalled state.
The 2.5a L298 offered in the store is great for most converted toy motors, but even when using one for each pair of Wild Thumper motors (In your case, 1st for front, left and right and the 2nd for back, left and right) you might run into cases where it is overloaded. But in general, using two of those controllers on the 4WD may work in ideal conditions (i.e. no heavy loads or rat racing it through the tar pits
)
That's just my two bits though