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Battery Holder - 4xAA Cube
Simple 4 Cell AA Battery holder with 5" tinned leads, cube configuration.
Battery Holder - 4xAA Cube Product Help and Resources
TB6612FNG Hookup Guide
September 29, 2016
Basic hookup guide for the TB6612FNG H-bridge motor driver to get your robot to start moving!
Core Skill: Electrical Prototyping
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
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really dumb question warning: I want to keep the voltage around 3v but I want 4 batteries but 4x1.5v is 6 volts, is there a battery holder that is wired so as the batteries on the same polarity are serial, would that even do it ?
They probably do exist, but not readily available in retail - could try the usual action sites, though. However, it would be trivial to modify a cheap mass-produced model such as this one to get what you need. Also, yes, if you wire two AA batteries in parallel, the voltage remains 1.5V* but with double the capacity*, and putting two of those parallel contraptions in series would get you the 3V. (* Alkaline, 1.2V for NiMH rechargeables, ** as long as you use fresh or equally charged batteries).
thanks for the reply, I might modify this one, guess I better get a few just in case =P
update: this worked great for a few times. then the leads just popped out after normal handling. the connections on the body are too deep to solder the leads back. easier to buy another (different) one anyway.
What are the external dimensions of this part?
The example I have (same manufacturer, but has a 9-volt snap connector instead of leads) is roughly 2 1/4" x 1 3/8" x 1 1/4" excluding the snaps. So it's basically four AA batteries plus a little plastic on all sides.
this works great generally, but the leads are a little too flexible. once you bend them a certain way, it's hard for them to stick in a breadboard or other device.
That seems to be a common trait among battery holders. I've taken to soldering bits of solid hookup wire to them, though you could also use a pair of screw terminals and stick them in the breadboard that way.