Questions tagged [battery]

An electric battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy.

Filter by
Sorted by
Tagged with
0
votes
0answers
6 views

LiPo battery power maximization

I don't know where this question should be asked so excuse me if this isn't the place. I have a 3S1P 2.2A 50C battery for a drone that I build. I have a charger that looks like this: https://www....
1
vote
1answer
22 views

DC motors are stalling at low voltage (L298N controller)

I'm building a small tracked robot. Currently it's just a Raspberry Pi, two motors and an L298N controller. The problem I'm facing is that the motors are stalling at low voltages (which is what I ...
0
votes
0answers
31 views

Monitoring battery voltage for interfacing with UI on QT creator

I want to be able to monitor the voltage of two 12V lead acid batteries in my system, and have the voltage reading to be displayed on a UI designed on QTcreator. One way I've thought of is to ...
1
vote
2answers
171 views

How to calculate the maximum charge of the battery?

How to calculate the maximum charge of the battery that it can give from a fully charged state to a fully discharged one. I have been trying to solve this problem for 2 months. The drone itself is not....
0
votes
1answer
22 views

Can I use 3 blades instead of 2 blades with the same pitch and dia to increase the thrust of my motor?

Can I use 3 blades instead of 2 blades with the same pitch and dia to increase the thrust of my motor? Will it burn my motor? or it will damage my ESC? Some motors are having high torque but low rpm, ...
1
vote
1answer
23 views

How should i select motor and blades for my Hexacopter?

I'm designing a fluid sprayer Drone (HEXACOPTER) for Agriculture as my college final year project. The capacity of the fluid spraying unit including fluid & Sprayer around 2kg. I don't know how to ...
0
votes
0answers
14 views

How to charge Pixel Drone battery

I have recently received Pixel Drone Forever. However, when I opened the package and looking for battery charger, I realized that packaging company has misplaced charger with regular micro-USB charger....
3
votes
1answer
49 views

What Battery Voltage to use?

Im currently designing a small robot that uses 2 of these 12v motors, which are manage by the L298N motor controller board, and is being controlled overall by an arduino. Now I have come across an ...
0
votes
0answers
25 views

How to find the minimum battery capacity C needed for the drone to reach the landing point?

I calculated the height object height, Distance to the base of the object, Drone weight, maximum and minimum battery voltage, resistance force and power ($P$). The drone is flying in steady state, ...
1
vote
1answer
190 views

How to calculate battery capacity for my robot system

I am part of a team and we build a robot. I know how many watts all the subsystems of the robot will need and I also know how much time we want to operate it. Our system will need 323.344 Watt and we ...
2
votes
2answers
56 views

Am I calculating my drone's power consumption right?

I want to make an drone with these motors: https://www.amazon.com/XtremeAmazing-2200KV-Brushless-2212-6-helicopter/dp/B01M3UBGU9 1: First of all, are they good? If not, could you suggest me other ...
2
votes
3answers
158 views

How to create a stable 48V 10A power supply?

I'm shopping for batteries and it's easy to find a 48V lithium ion battery that has like 30A max continuous discharge rating. However, I know that the battery supply has a variable voltage from 54V - ...
3
votes
3answers
108 views

How to get constant motor RPM regardless of battery voltage?

I have a brushless motor with a propeller attached, driven by an ESC and a LiPo battery. I noticed that as the battery level drops, the motor spins slower, which makes sense. My question is is it ...
1
vote
1answer
523 views

How should I power my servo motor with the Adafruit PCA9685 chip?

So I have an Adafruit pca9685 controlling an HSB-9380TH servo and a MG-996R servo. I recently began learning about building robot so I apologize if these questions seem dumb. I literally spent a days ...
1
vote
1answer
64 views

Powering servos for quadruped spiderbot using arduino uno [closed]

I am using 12 towerpro SG90 servos. What battery should I use for powering 12 servos for my arduino uno? Can i use the 12v battery, plug it in to 12v dc jack of arduino and tap the 5v output of ...
1
vote
1answer
395 views

18 MG996R servo motors control and power

I am currently working an a personal hexapod robot project. I am building it using 18 MG996R 4.8 to 7.2 V servo motors. I would like to use a Raspberry Pi 3 B+ to control it. I purchased a 7.4&...
1
vote
1answer
297 views

Ultra Low Power servo and controller for long usage..? [closed]

So I have an idea which would require the following: 1-4 servos 1 microcontroller some way of communicating with it via smartphone (bluetooth or wifi) Ability to run for 14 days on a small power ...
3
votes
3answers
114 views

Powering multicopter with multiple dedicated batteries

I am in the starting phase of building a fairly large octo-copter drone. I am currently thinking about the possibility of powering my octo-copter design using 4 separate batteries where each battery ...
0
votes
2answers
67 views

Compatibility of my quadcopter build

I am building my first quadcopter and have multiple questions. I am using a Crius MWC Multiwii SE 2.6 flight controller which will get input from a Raspberry Pi Zero. I have this 4in1 ESC and this ...
2
votes
1answer
61 views

how to know if the LIPO battery I have is compatible with the motors and motor driver I have

I am building a robot and I have a concern. Will it properly connect a 11.1V 30C 4500mAh to this motor driver : https://www.pololu.com/product/708 thanks in advance ..
1
vote
1answer
141 views

AUV Lipo Battery capacity

I'm making an AUV that requires 15-20 minutes of operating time. I'm using 6 of these motors (Blue Robotics T200 Thrusters) for propulsion; I'm looking for 6S lipo batteries (22.2V) but i don't know ...
2
votes
0answers
69 views

How could I make an all electric model rocket? [closed]

What I've been noodling on is how to convert that energy into thrust to create an all electric model rocket. I got as far as realizing that dumping electricity from a battery into a capacitor might ...
0
votes
1answer
29 views

Powering a robot using the 12v adapter

Hello every one hope you all alrigt I am working on a mecanum wheel robot and now I am facing a problem to afford a lipo battery which the required voltage to power my robot is 12 So I think that I ...
0
votes
1answer
433 views

DC gearmotor stall current and battery capacity

I'm working on a self-balancing robot project and am in the process of motor sizing. I've read that with self-balancing robots the motors need to switch direction quickly, which can cause them to ...
2
votes
1answer
60 views

What battery capacity would be required to run a component for an hour?

I have a 9.8kW Component that runs at 51.8 Volts. That means I need a battery that has about 9.8kWh of energy to run the component for an hour For the sake of simplicity, say I have some batteries ...
1
vote
2answers
105 views

using Li-Ion batteries in parallel

Looking at the Li-Ion battery packs from Servocity, part #605056, 12V, 6000maH battery pack. Any reason I shouldn't put these in parallel with each other? Any idea on what these might weigh? I've got ...
2
votes
2answers
103 views

Parallel connection of batteries with equal voltage but different Ah?

I bought some batteries for a project with the recommended voltage but too weak Ah. The batteries are to be connected in parallel. I can't currently afford to upgrade both batteries, but I was ...
1
vote
1answer
41 views

Proper cable to connect 12 V, DC 6 Ah batteries to Sabertooth Motor Controller for Lawnbot?

I am building a (fork of) the Lawnbot-400 robot found on Instructables.com and in the book Arduino Robotics. The author, while brilliant, tends to gloss over and omit details, one of those being how ...
2
votes
1answer
37 views

Going around Voltage Limitation on Battery for Steppers?

Am building a device that will use two stepper motors and a servo. One of the main requirements, is that the on-board battery cannot exceed 9.6 volts. The stepper motors have not been picked yet, and ...
1
vote
1answer
443 views

Powering a 6v servo and 12v servo

In my project, there are two types of servos ( 6v and 12v supply needs ). I need to power with the same battery. How should I go about it? Use a 6v battery with a step-up voltage regulator? How does ...
1
vote
2answers
788 views

How to calculate battery size for servo motors?

I am making a robotic device with the following servo motors. How do I go about calculating the battery capacity? It is supposed to run for 10 minutes. I am bit confused as to use the no-load current ...
2
votes
1answer
100 views

Switching from wall power to battery and back again

I'm in the final phase of my BeerBot* project, and I'm looking for the best way to power it. BeerBot will spend most of his life sitting in a docking station, keeping his battery charged and running ...
1
vote
0answers
297 views

Irobot Create 2 drawing power from Pi [closed]

I am controlling an IRobot Create 2 with a raspberry pi, which I am powering with one of these: https://www.adafruit.com/product/1566 (I know, I know, I should have just gotten power from the ...
0
votes
1answer
55 views

Qi Battery Pack [closed]

I am trying to build a bot that is "always on". I will be using a qi platform and am looking for a battery that charges through Qi. I've found several batteries that can charge your phone through Qi, ...
-1
votes
2answers
68 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 ...
1
vote
1answer
63 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....
3
votes
3answers
91 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?
1
vote
1answer
145 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 ...
1
vote
3answers
621 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 ...
0
votes
1answer
84 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 ...
0
votes
2answers
139 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 ...
0
votes
1answer
208 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. ...
0
votes
1answer
40 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 ...
2
votes
2answers
268 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
2
votes
1answer
87 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 ...
0
votes
2answers
326 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
2answers
74 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 ...
1
vote
3answers
882 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
3answers
151 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 ...
1
vote
4answers
33k 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