Tagged Questions

0
votes
2answers
83 views

Battery powering an unknown DC motor

I know nothing about motors. I have DC motor (sealed in a casing) that uses 6v/12v 1a (mains switching power supply) with 2.1x5.5mm DC connector. It has variable speed controller, reversible ...
0
votes
2answers
56 views

Why is this electro motor going slower?

From an old dust buster I've got this electro motor, the included battery pack and the charger: I ripped everything apart (the dust buster was broken) and the motor still works. After playing ...
0
votes
0answers
47 views

Parts List to Replace Battery Packs?

I've purchased and installed some relatively cheap motorized blinds for my apartment. After having them for about a month, the batteries are dead on 2 out of 3 sets. Each blind has a pack of 7 AA ...
4
votes
4answers
348 views

Overclocking my toothbrush

I use these toothbrushes: http://www.amazon.com/Oral-B-Advanced-Toothbrush-Vibrating-Bristles/dp/B00336EUV8 They tend to run out of battery quite quickly. I'm happy to keep buying more because ...
2
votes
2answers
134 views

Connecting batteries in series

I have a 90 V motor I'm testing on a bike. I ran it with two Bosch corldess 18 V batteries in series. With 18 volts it ran about 10 miles per hour. With 36 volts (both batteries together) about 20 ...
1
vote
1answer
129 views

Circuitry for Running Many Small Motors

I'm creating a simple vibration mat for a child which will be triggered by a force sensor. I'm not trying to do anything complex (like changing frequency of vibration) - simply an on/off circuit. What ...
2
votes
1answer
1k views

What power motor should be used to power a Segway-like device

I am planning on building a personal transportation device which will either be a skateboard with a motor etc or a Segway-like device. I will have two wheels and must be capable of getting me to move ...
-1
votes
1answer
129 views

I am thinking of designing an electric car and am wondering about the best way to drive the wheels

I'm thinking of a light cart - barely enough room for one person and the batteries. What do you think would give me the best battery life? I am thinking a (brushless?) motor with the input voltage ...
4
votes
1answer
736 views

how to read battery spec?

I window shopped for a small size battery. On the battery specifications, there are: capacity(mAh) : 85mAh Pulse Current(mA) : 190 Cycle Life(Times) : 300 What does Pulse Current mean? Does it ...
1
vote
3answers
159 views

Connect a 8 V motor to a 16 V battery

I am hacking a vacuum cleaner robot by trying to control the motors with an Arduino. I have then two 8V motors, each one needing from 50mA (when the wheel is turning free) to more than 1A (when the ...
4
votes
2answers
297 views

Solar powered water fountain

I am planning of building a solar water fountain which would serve as a bird bath in my backyard this summer. My requirements are simple: The fountain should be powered by solar energy, a small ...
7
votes
2answers
210 views

Batteries for 12- to 24-V motors

I have some nice gear motors that run on 12 to 24 volts, and want to use them in a medium-sized mobile robot -- maybe 30 cm * 30 cm for the base. I only expect it to run indoors, or possibly outside ...