Dule batterys

[Dark element]

Hello this is Angelo Gargarello the new caption of the Melvindale robocards team 5 just wanted to know if we where the first to have duel battery's on the robot with a back up pair. This system has a switch to switch from one set of battery's to the 2ed set just wondered if any one else did this yet

[Daniel_LaFleur]

Originally Posted by Dark element

Hello this is Angelo Gargarello the new caption of the Melvindale robocards team 5 just wanted to know if we where the first to have duel battery's on the robot with a back up pair. This system has a switch to switch from one set of battery's to the 2ed set just wondered if any one else did this yet

We've run dual batteries in parallel for parades and such.

[artdutra04]

Originally Posted by Dark element

Hello this is Angelo Gargarello the new caption of the Melvindale robocards team 5 just wanted to know if we where the first to have duel battery's on the robot with a back up pair. This system has a switch to switch from one set of battery's to the 2ed set just wondered if any one else did this yet

(Assuming this is for non-competition use), why not just wire them in parallel?

You'd get the same 2x running time without the need for a switch.

[Alan Anderson]

Originally Posted by artdutra04

...why not just wire them in parallel?

Batteries in parallel rarely work as well as you'd expect. Unless they are very well matched in condition, you'll usually end up with one battery discharging farther than it should before the other one has provided all its available energy.

[Al Skierkiewicz]

Angelo,
Can you be more specific? Was this an FRC robot or something else? Were you using this for competition or show? FRC competition rules only allow one battery on a robot during competition. A second battery whether connected or not cannot be added to the robot.

[Mr. Freeman]

This couldn't have been used during competition, I don't think there's an inspector that could possibly miss TWO batteries on a robot.

The OP was a bit confusing, it sounds as though there are two separate sets of batteries, with each set consisting of two batteries wired in parallel. Is this the case?

In any case, I believe it's been done before, but I don't think it's incredibly common. It's still quite an interesting thing to do.

[Dark element]

O.k this is just a for fun robot that is able to shoot ping-pong balls with compressed air using the first pneumatics compressor. What I have done is wired two battery's using a switch and a power board if needed i will take a picture to post for all of you that are interested in this project thank you for all the reply's

[Daniel_LaFleur]

Originally Posted by Dark element

O.k this is just a for fun robot that is able to shoot ping-pong balls with compressed air using the first pneumatics compressor. What I have done is wired two battery's using a switch and a power board if needed i will take a picture to post for all of you that are interested in this project thank you for all the reply's

Sounds like a fun project. Can't wait to see the finished product.

[Dad1279]

Originally Posted by Dark element

O.k this is just a for fun robot that is able to shoot ping-pong balls with compressed air using the first pneumatics compressor. What I have done is wired two battery's using a switch and a power board if needed i will take a picture to post for all of you that are interested in this project thank you for all the reply's

You may want to use one battery for the compressor, and the other for the electronics. The compressor will use the battery faster, and you can swap it out without shutting down the system.

Would love to see a picture.

[Dark element]

thank you all for reading this post we have the robot up and running but today we found that some of the screws came out of the weel so we have to fix that. for all of you that where in robotics in 2005 we are reuseing that robot to make this robot if you would like the blue prints or picture/ movies of the bot email me at theoldelement@gmail.com I would love to hear from all of you