Questions tagged [battery]
An electric battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy.
122
questions
-1
votes
2
answers
69
views
Guidelines for a "stopwatch based" craft [closed]
I'm a swimmer and would like to create a small object that would help me folow my trainning plannification.
In other words I want to create a custum stopwatch, with 5 colored led that will be on or ...
- 101
2
votes
1
answer
65
views
battery question for DW558 Explorer (small quadrocopter)
I recently bought a DW558 Quadrocopter (http://www.gearbest.com/rc-quadcopters/pp_110531.html).
After few minutes, the battery is dead. Which is understandable since the battery is so tiny. It is a 3....
- 123
3
votes
3
answers
96
views
Battery damaged?
Could you please see the attached battery images and tell me if it is safe to continue using this battery or should I discard it?
- 31
1
vote
1
answer
510
views
What does internal sparking in a motor mean?
My Arduino + Raspberry Pi robot was working fine in the morning. I tested it, it ran perfectly, and then I switched it off.
Now in the evening when I'm trying to run it again, with the same ...
- 176
1
vote
3
answers
1k
views
Can too much input current destroy my motor driver?
I have a 18 V rated driver I'm using to drive two 12 V DC gear motors using my Arduino. I bought a new battery pack which is rated 3300 mAh 25C, 11.1V making the total current input 82.5 A. My driver ...
- 176
0
votes
1
answer
91
views
Suggestion for correct battery pack
I am trying to run 2 12V Geared DC motors which has No-load current = 800 mA(Max), Load current = upto 9.5 A(Max). Runtime to be atleast 3-4 hours.
The motor takes about 10-12 V for operation.
I need ...
- 176
0
votes
2
answers
173
views
Tring to run 12 V DC geared motor using Samsung Li Ion ICR16850 batteries
I am trying to run this motor.
Using the batteries stated in the title. The motor requires 12 V and I am supplying 11.98V to the motor, through a motor driver. After a while, the motor keeps slowing ...
- 176
0
votes
1
answer
299
views
Is my servo fried?
I got a new servo a few days back (RC Servo, Futaba FP-S148). I first tested it out with the Sweep sketch on Arduino, powering it with the Arduino 5v and GND pins only. It was working, just fine.
...
- 176
0
votes
1
answer
43
views
What rating Li-Po battery should I get for this configuration?
I will have this configuration:
A2212 Brushless Motor 1000KV - 4 each
ECS - 30A Electronic Speed Control (ESC) - 4 each
Propeller - 1045 Propeller CW & CCW Pair 10 inch * 4.5 pitch
Arduino Mega ...
- 101
2
votes
2
answers
406
views
How to decide the battery power for my robot
I need my motor to be powered with 12V, 5A for 1 hour continuously. How can i decide the Ah rate of the battery. Please suggest some lithium ion battery for the specification
- 113
2
votes
1
answer
99
views
Create 2 light red/green
I am working on a project with the Create 2. Just recently I have run into a problem with the battery state. The Create 2 has been charging all night so its clean light shows green. However, when I ...
- 21
0
votes
2
answers
395
views
Choosing a battery: is a harbor freight solar battery OK for a R/C Lawnmower?
I have built an R/C Lawnmower. I call it the Honey Badger, because it tears stuff up (that's a good thing). Well, I used used batteries to get the project going and now it's long past time to get ...
1
vote
2
answers
79
views
Mobile phone power packs
For my robotics project I would like to utilise readily available mobile phone 'power banks' to simplify the power system for my robot. However, such power banks output 5V, great for the logic systems ...
- 225
1
vote
3
answers
933
views
How do I create a portable solar panel lipo charger? [duplicate]
We're working on a quadcopter that will carry a solar panel on top that will continually charging the lipo battery of the quad. What's the smallest and easiest way to recreate a charger that will ...
1
vote
3
answers
160
views
Quadcopter Charging
Our thesis is about Multicopter using two batteries wherein the first battery is used and when the power goes out, a switch is placed use to charge the first battery while the second battery is ...
2
votes
4
answers
41k
views
Does the mAh of a battery mean longer power or more power?
If a Lipo battery has more mAh will it be slower to run out of energy or will it have larger power output?
Thanks in Advance
- 63
4
votes
3
answers
441
views
Best power solution for my robot
I've built quadruped robot which is using 12 servos (TowerPro SG90 Servo) and Raspberry Pi (model B 1). Right now I'm "feeding" it with 5V 2.5A charger.
How can I make it un-tethered? What should I ...
- 143
2
votes
3
answers
451
views
Are there any Lithium Ion battery monitors designed for hobbyists (quadcopters)?
I have a friend who is getting into quadcopters and being the good techie buddy, I'm trying to find the right technology for battery monitoring so his expensive machine does not fall out of the sky ...
- 4,385
2
votes
1
answer
2k
views
How do I if know my quad is powerful enough to take off vertically smoothly and how do I calculate max Thrust(g) for given current(A) and voltage(V)?
If I build my quadcopter with the following components, will it take off vertically smoothly?
Frame: F450 glass fiber and polyamide nylon [280g]
Landing Gear: High Landing Gear for F450 [90g]
...
3
votes
2
answers
2k
views
Mechanical robustness/shock resistance LiPo batteries
How mechanically robust are LiPo batteries? How much force or acceleration can they maximally withstand before failure? What is their (mechanical) shock resistance?
For some electrical components ...
- 562
2
votes
1
answer
207
views
What charger to use with my ZIPPY Compact 6200mAh 4s 40c Lipo MultiRotor Battery [closed]
Hello I am trying to build a Quadcopter for a school project and I need to finish quick before our mission trip because I was asked to finish it before then so that I could take it. But I am having a ...
- 63
0
votes
2
answers
308
views
When to use multiple batteries vs a UBEC
When should you use multiple separate batteries vs a single battery with multiple UBECs?
I'm trying to design the power system for a small 2-wheeled robot. Aside from the 2 main drive motors, it also ...
- 284
2
votes
1
answer
2k
views
Using DC motor as a generator to recharge battery of my robot
I am trying to recharge my 12V lead acid battery with a 12V DC motor. I am using the battery to power the robot when it climbs. When it descends, I notice that I dont need to apply reverse voltage ...
- 311
0
votes
1
answer
357
views
Powering my robot with 12V battery which is charged by a gas/petrol generator while the robot is operating?
A have designed a robot to perform tasks in farms. But the problem now is I'm not sure on the best way to supply continuous power to my robot. All the motors are rated at 12V and only Arduino and a ...
- 311
0
votes
1
answer
358
views
Can i charge a lipo nano tech battery over imax b3 charger
Can i charge a lipo nano tech battery over imax b3 charger. 2650mah 35/70c 3s is the battery
4
votes
2
answers
86
views
How do I dispense a greasy fluid?
I'm a agricultural engineering student and complete newbie trying to build a simple mechanism attached to a drone that dispenses a grease-type fluid. However, since I'm not familiar with the field, I'...
0
votes
1
answer
188
views
Drone Battery Question
Background:
6 propeller drone w 20C 3s 6400 mAh 11.1 liPO battery
4 propeller drone w 25C 2s 5000 mAh 7.40 liPO battery
Behavior:
Drone 1 flies with ease
Drone 2 struggles hover 2-3 inches above ...
- 295
0
votes
1
answer
85
views
Estimation of Battery Life Time From PWM Signals in a Quadrotor
Is there any way of estimation the battery life from pwm outputs which goes to motors in microcontroller level. I'm planning to estimate path range with this. Microcontroller, sensor and other ...
- 1,104
-1
votes
1
answer
209
views
How to reduce battery power 10v 1.5A to 6v 1.5A [closed]
What's least complex way to reduce power from a 10V 1.5A battery to 6V 1.5A
Thank you!
2
votes
1
answer
42
views
Extending iCreate battery power for auxilliary equipment
I plan to use the icreate as a platform to carry a tablet, or notebook PC and want to have power for some time so I need more than the 3000 mAh battery. I want all to be powered from same battery ...
- 21
0
votes
1
answer
29
views
Wiring necessary to route power from any one of several rechargeable batteries
I'm looking for my robotics project to draw its power from one of 3 rechargeable batteries; basically whichever has the most "juice" in it. From the initial research I've already done, I believe I ...
- 219
0
votes
1
answer
150
views
How to determine how long a battery will power a robotic circuit for?
Obviously robotic circuits draw different amounts of power/current. So given the same battery, say, a 9V, then connecting it to 2 different circuits will deplete it at two different rates. Robot/...
- 219
2
votes
1
answer
201
views
How to decide between LiPo or LiFePo for robot battery
When choosing a battery for a robot, should you use a LiPo or LiFePo?
For LiFePo, the pros:
can deliver higher sustained amps
many are built to be drop-in replacements for lead-acid batteries and ...
- 284
0
votes
1
answer
1
view
Long term turtlebot storage and care
Does anyone have any experience with maintaining the netbook and Kobuki batteries during long term (6 months - 1 year) of storage? Do they need to be intermittently recharged?
Originally posted by ...
stevenwaslander
2
votes
2
answers
2k
views
How to provide power to a robot/raspberry pi?
I'm building a robot and powering it with a Raspberry Pi. I am looking at this battery pack, but I am flexible with which one to use.
My problem is that I need to be able to charge the robot while it ...
- 131
0
votes
1
answer
1
view
robot hits the obstacles and turns around occasionally using navigation stack
Hi everyone,
I am using the navigation stack on my own wheeled robot. at first i used a converter to convert 220 v to 14.7 v to run my robot. using this power my robot navigated nicely in the ...
Morteza
3
votes
1
answer
909
views
Battery system for a robot with a RaspberryPi or microcontroller
I'm building a robot which is actually a rotating ball. All my circuitry will be inside this ball. I'm using a Raspberry Pi as the brains. Apart from Raspberry Pi, I've an H-bridge IC (L298N), a 6-...
- 31
2
votes
1
answer
395
views
Powering a multirotor with dedicated batteries for each motor
I'm currently thinking of extending the battery life of my quad by powering each motor and ESC individually. I will be using 1 dedicated battery for each motor, and 1 dedicated battery for the flight ...
- 299
1
vote
1
answer
51
views
What type of Antennas to use for XBeePRo 2.4Ghz
I am planning to use 2.4Ghz XBeePro 63mW Devices for a project that requires a coverage area of around 1.5-2km.
When i go to select an antenna there are various options like Circular,Virtical, ...
- 399
0
votes
1
answer
107
views
Linear or Switching Power Supply for a Embedded Project
Power Block Designing noob here.
I have a beaglebone 2x XbeePro(s) and another 500mAh device connected to the board i am building a PCB Around.
I need some advice on weather to use Linear Voltage ...
- 399
0
votes
2
answers
98
views
Risk of overloading motor controller
I bought 2 brushed motor controllers from China for my hobby-weight battle robot (http://www.banggood.com/ESC-Brushed-Speed-Controller-For-RC-Car-Truck-Boat-320A-7_2V-16V-p-915276.html).
These are ...
- 351
7
votes
4
answers
5k
views
Robot docking for self-recharging
I want to build a simple obstacle avoider robot, but this time I want it to be self-recharging so I am building a dock for this purpose, so I want it to be able to locate the dock and go for it when ...
- 131
0
votes
3
answers
117
views
Can a 5S LIPO battery be changed to a 3S and a 2S?
Newbie to robotics here!
I bought a 5S LIPO but now realise that it is overkill. And these things are expensive!
So, given that (as far as I know) the pack is apparently made up of individual cells ...
- 351
0
votes
1
answer
1
view
battery_state_of_charge publishes nothing on Pioneer3DX
Hi,
in the rosaria documentation is written that, if the pioneer supports battery_state_of_charge the topic is published. The topic is published, but there is never any data comming. Does anyone know ...
pkohout
1
vote
1
answer
115
views
Arduino Power Supply
I want to power my Arduino Uno and I know I can do that either by connecting it with USB to PC or with DC power supply.But I want to connect it with a battery source(kindly see the image below) and I ...
- 45
3
votes
2
answers
1k
views
Will a 20amp ESC run a Turnigy 2213-980?
I'm a noobie just starting out and trying to come up what I need to build my first quadrocopter, I just wanted to run something by people with some experience before I commit to buying anything.
...
- 133
2
votes
0
answers
103
views
McKibben artificial muscles and the 400:1 ratio
I was recently reading that those artificial muscles had the highest power/weight ratio while electric motors only have a ratio of less than 100:1. As electrical engineer I have never worked with ...
- 681
2
votes
1
answer
629
views
Salvaging a bunch of laptop battery packs
I'm working on my first robot project. I previously used a 12V 6Ah sealed lead acid battery, but recently I aquired some 15 ASUS Li-Ion battery packs, each of them 14.8V and either 2200 mAh or 4400 ...
- 202
1
vote
3
answers
2k
views
Servos power supply in Quadruped Robot
I'm facing a problem while building my quadruped robot which is figuring out the efficient power supply needed for the 12 servos. I'm using 12 MG995 tower pro servos powered by 2 lithium batteries 2x3....
- 165
2
votes
3
answers
774
views
Crimp or Solder to LiPo Battery?
So, I'm planning out my second hobby robot(I'm 15). I am planning on using a 7.4V LiPo battery and my idea is to solder on a 3-pin header to connect to the electronics. Anyways, should I solder to ...
- 31