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    2,000 battery charger lithium ion jobs found, pricing in USD

    Looking for an RF expert to build a prototype of a small, battery-operated device based in patented technology.

    $5243 (Avg Bid)
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    4 bids

    ...display module over SPI and have the ability to turn the screen off when not in use to save power. Some work has been done on this and the code can be modified or rewritten. Control a piezoelectric buzzer with different tones or strings of tones as a type of user feedback. The ability to choose which string of tones to play depending on the situation. Method to convert battery voltage measurements from an onboard ADC to battery capacity. Method of timing how long a user presses one of the buttons to distinguish between short and long presses. Each button will have multiple functions depending on how long the user presses the button. For special device functions two buttons will need to be pressed at the same time and we will need to monitor for that as well. An ISR w...

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    The project use html, php, ion auth and mvc. The fact is just end a started page.

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    Trophy icon Solar company door hanger Ended

    Hello I need a double side solar door hanger. 4.25 wide by 11 inch height. I will need editable source files. Thank you. FRONT All Homes In California Require a Renewable Source of Power: Upgrade Your Home To Clean Energy TODAY!! NO Cost To Install NO Lien On Property!! Just Buy Power Like You Do Now But At a DISCOUNT!! Add Back Up Battery For Power During Blackouts & at Night!! First 3 to 12 Months FREE!! (Restrictions Apply) Renting Your Home? Refer Your Landlord & Get PAID $500 If They Install. 916-955-5332 (Big Green #'s) BACK This Program Helps Cover Some of The Cost If Repairing Your Home!! (Restrictions Apply) *Electric Panel Upgrade *Central AC/Heat *Roof Repair *Flooring *Paint *Landscape We Also Can Make A

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    30 entries

    Hello, The project consist of designing a power module with the following properties: -power input at 5V from USB or from an auxiliary input -1-cell battery charging -Power output: 5V, 3.3V and I2C connection to the battery charger IC -PWR button of type Press-ON-Press-OFF toggle action to cut the 3.3V and 5V output Blocks (see the attached picture): -1-cell battery charger and booster (to 5V) using the IP5306-I2C chip: see (4) on the picture -DC-DC converter (from battery or 5V) to 3.3V: see (3) on the picture -Two power input: 5V (from USB) and 5V Auxiliary: see (2) on the picture -Latching push button power switch: see (1) on the picture. Behavior: .The PWR button is of type Press-ON-Press-OFF toggle action to cut the 3.3V and 5V power output...

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    ...is based on 3 key components, a broadcom APDS-9250, a STM32 MCU and a Sigfox transceiver. Together these components will count the pulses of a flashing LED over a 1 hour period, then transmit the count over the Sigfox network. The basic components have been tested. I have built several prototype devices that use the APDS-9250 and transmit the count vis Sigfox. This device is going to be battery powered, this specific version that you are going to design is going to be field tested so I can understand the power requirements of a working prototype. In the last month a Freelancer I engaged (on a different platform) disappeared without shipping me the finished article, I have included photos of that device for reference, but I don't have the actual device. I have creat...

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    We are a globally established Hybrid battery sales service repair testing chain . Expanding through the Middle East require SEO OPTIMISED product description listings to load on Facebook in Arabic and English . ** will be used on online classifieds and website catalogue etc. Attached ennocar advert and hybridteks advert of ennocars same model battery I require it to mantain the English version with Arabic version listed on top for Jordanian market . English versions can remain with images as is from hybridtek dubais site so just Arabic translate above .

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    I need a social media marketing page for my business: www.g-tech , especially a solar battery system

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    I need a website design for www.kaienergygroup.com.au. This is a renewable energy company (solar, wind, battery) Need to add the main content (not limited): Grid application, Grid connections, Grid protection, Injection testing (secondary ), Power Quality testing, and HV Solutions. All contents need to produce, I can send some examples of other websites as an example I need a logo as well

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    I would like to make a battery powered motor spin 360 degree each time a button is pressed as part of a basic robotics project. The project is very simple: (1) I press a button; and (2) the motor spins 360 degrees, rotating a shaft the motor is driving (ie turning it one full rotation). There are a few things that I need: - the design must be very tough and shock resistant (eg capable of off road jumps at high speed); - it must be waterproof (eg if it’s submerged in a puddle it must still work); - ideally it must be energy efficient (I’m not sure if that means a stepper motor is less viable, but it seems like a logical choice); - the 360 degree rotations must be precise (eg +/- 5% accuracy at most, preferably less); - the motor must be somewhat powerful to ...

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    Hi All, I need an Expert to source some Landscaping Equipment ( Specific Lawn Mower ) from China. I can use Alibaba so if thats your only way to find these Manufacturers then please do not bid. I do not need trading companies. I need the actual Factory/Manufacturer so I can order samples. Requirements: -3-5 Supplies -Spreadsheet with Information to compare ( Price, MOQ, Battery Life, etc. ) -Supplier can be outside of China

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    -> Calculation of the range using the output of the py file -> Run the py file (already created would be provided) -> Integrate Google Maps API ...file (already created would be provided) -> Integrate Google Maps API (API key will be provided) -> List of Charging Stations sorted according to the distance having red and green colours according to the range left of the vehicle -> A navigation path between our location and the chosen station -> The list made should be dynamic of the charging station and on firebase if possible -> Display the battery percentage and the output of the py file that will be SOH -> Range will be calculated by taking the current charge percentage, i.e. current charge * ( SOH / 100) * Avg range and displaying that too. -> The F...

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    I am writing a children's book of ABC's relating to cars and mechanics. There will be 1 illustration required per letter of the alphabet, so 26 illustrations in total. Some examples of what will be in the book are below: A is for Accelerate B is for Battery C is for Coolant D is for Differentials E is for Electronic Control Module F is for Fuel Pump With each letter, there will also be a brief description of the what the part does. A - The speed the car travels is determined by how much you accelerate. B - The battery provides the power to start your car. The book is not complete at this stage, I am still working on some of the letters and the descriptions but would love to get a quote and some examples on the illustrations that could be incorporated into the book...

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    Deadline: 3 weeks No op-amp designs!! this device will be used on live animals therefore voltage and current protection is a MUST with big letters and it need to operate at least 12 hours so thermal design needs to be properly done harmomic distortion must be less than %4 Input : 12VDC Battery powered. Output Voltage : 110 V peak to peak Output Current : 40mAh Continious Output Frequency : 18 kHz Sine Design considerations; This device will be used for 12 Hrs continuously. This device will be tested on live animals there is ro room for voltage spikes and over current. NO op-amp design is allowed. THD must be %5 or less.

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    An experiment utilising a capacitor set to a given voltage and couple it to an interferometer set to a certain Hertz frequency and send the resulting energy into a battery powered generator.

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    Fuzzy based solar fed bldc motor with lithium ion battery We need only simulation we attached a screenshot for your reference . How to implement fuzzy logic in the below screenshot .

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    We need to design, develop a battery management system for Electric Vehicle with IOT enabled smart telemetry system. BMS should be EMC compatible with compliance with automative standards ( 70 V, 200 Ah) timeframe: 1 month

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    We are looking for an expert who is familiar with Modbus and knows how to read data parameters from Lithium battery. We want use Raspberry Pi to communicate with the Li battery through RS485.

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    I need to design a an led circuit using ×14 (12v x400 mah or .4A) led smc. Design needs to be optimal for a 12 v 25000 mah battery system.

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    CAUTION! I am looking a programmer, who already has/knows the protocol of BYD's electric ForkLift CANbus. I am interested in having a copy of this documentation. I would like to order a simple software, which reads raw data from CANbus of BYD electric ForkLift, parses it and outputs human readable values of parameters like: - battery level [%] - power battery voltage [v] - vehicle total distance (ODO) [km] - total hours worked [h] - gear position [P/R/N/D] - vehicle speed [km/h] - speed level - ignition/engine on status [on/off] - accelerator pedal position [%] - engines temperatures [°C] - ... some more, depending what is available in CANbus or display show on Dashboard . To have a complete protocol of the vehicle's CANbus is a requirement for the programme...

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    I need an arduino sketch for the LilyGO TTWATCH 2020 v1 so that: -TT Watch can connect to a local access point -An IP address can be defined for the TT watch. -A topic to subscribe can be defined for the TT Watch. -TT Watch uses Deep Sleep to improve battery performance. -TT Watch displays MQTT messages on the screen.

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    Urgent!!! I want to make a solar generator which is required to run a load of 2kw per hour and a battery backup of 6 hours... Need calculations on immediate basis

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    ...LEDs, an On/Off switch, a reset switch, and a N-O switch. Push button should be debounced To eliminate the switch pressing contact error, a timer should be used to eliminate the error. Once the switch is pressed, timer should hold its output at high state for 5 seconds to ignore all switch inputs and effectively eliminate error during that time. Battery The circuit must be battery powered. Select the most efficient battery for the project. It must be compact and have enough power to last a long time. It should be rechargeable. Micro controller Must be Low power or Ultra low power PCB Board The circuit should be designed to fit on a credit card sized PCB Board Enclosure An enclosure is used to house the PCB. Deliverables All PCB board design A...

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    Description:- Given scenario - The system has encoded laser (IR) Transmitter and receiver powered by 5V battery bank. Requirement - Project scope includes a hardware system of laser transmitter & receiver which must be powered by 5v battery, The laser receiver must be able to detect the transmitters unique identity through its encoded stream of ray when ever the laser points on it and receiver must have a small LED triggered once laser transmitter is pointed on it. This shall be demonstrated using Serial PORT As well The laser system must work in day light as well as night condition in Outdoor & indoor condition. The system must work in Direct sunlight. The Laser system working distance range is 100FT.

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    Fast Chargers and Lithium Battery solutions for Forklifts, Pallet Jacks and Airport servicing machinery. Example website is crown.com. Colour pallet - Fire red, black, white and small greys. Need images of airports, planes, batteries, forklifts, warehouses, pallet jacks, electric machinery in the Material Handling field and airport industry. I have an existing website that needs a massive revamp. I need the website modern, sleek and has a tech/industrial feel.

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    I am making an electric hydrofoil surfboard. It will be powered by 12s4p Basen 26640 batteries. I need to arrange the batteries as 2 packs of 6s4p to use a 6s charger. I need to arrange the batteries in rows of 4, stacked 12 high. Batteries will be mounted inside a carbon fiber vertical mast which is underwater, so battery walls will be touching carbon fiber, with a thermally and electrically conductive epoxy, so they will be cooled by the water on the outside of the mast. I am a mechanical engineer not electrical, and I need detailed schematics and a parts list on what I need to build this, and what design problems I may have created with this idea.

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    ...subscriptions (Office - Windows - ..) - (types for each brand) Repair Section:-: User will chose the bellow Phones (Apple - Samsung - Huawei - ..) - (types for each brand) Tablets (Apple - Samsung - Huawei - .. ) - (each brand) Computer (MacBook - Windows) - (each brand) Games (Sony - Xbox) - (types for each brand) Smart watches (Apple - Samsung - Huawei..) - (types for each brand) Then problems: LCD battery does not work ETC.. User info : Name: Number: Email: Date : Location: Area then this details must be sent to Whatsapp, or Email accessories Section ( Store ) Best Sellers: Products - Color - Type Discounts: Products - Color - Type Classification: Products - Color - Type Name: Number: Email: Area: Today: Location: Quality to pay: smart home Choose category - products...

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    Project Description: Using schematics from a current GPS survey unit as a guideline, create a new schematic for a prototype survey unit. Much of the work will be simple "copy and paste" of schematics. Certain parts of the guideline schematics that are not needed should be removed. A serial port should be added for connection to older serial devices. The battery charge and protection circuit should be improved/designed so that two 3500mah batteries can be safely recharged in 4 hours. Support should be provided during the prototype building and testing phase. Once the prototype has been tested and approved, the schematic should be placed on a production PCB approximately 110mm in diameter. The U-BLOCK ZED-F9P should be placed on a PCB hat so future replacement with other GN...

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    We need solar/wind/battery engineering design, we already have the equipment, but our design that we have does not provide the information we need. We have the following equipment, 40x400 watt panels 1x11KVA back up generator 3x8KW SMA inverters 30KWH batteries Wind turbine is due for install at a later date It is an off grid system

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    We want update our app by android and IOs. We want add new Features and fix some bugs. ITS a Lifepo4 Battery who connect over Bluetooth to BMS in the Battery get live data

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    ...21x14,5x7cm. We are looking for a new design for our product (battery floodlight). Attached file is the current design. We are looking for something new, fresh. We want our packaging to look exclusive, top-shelf. We like the combination of gray and orange, but this is not a condition. If you have another idea for a color combination that looks great, don't be afraid to use it Box size is: 21x14,5x7cm (Template for the box included in the files: and ) Additionally, we have included the current box design in the file. The front must include: - Logo () - Power information (20W) - Information about the intensity (1200lm) - Information about the battery capacity (5000mAh) - Information about the color of light with

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    Arduino stepper project I need a capacitive touch (like TTP223) which, if hold down for 5 seconds, turns the whole device on and off. i also need a screen (EDO E1473AC63) with three buttons designed, a bar to indicate the battery level and a bar to indicate the stepper motor effort. if the buttons are kept pressed, they activate the stepper motor. the engine starts only if the button on the display remains pressed. if the button is released, the motor stops. There are three because they have different acceleration and maximum speed. acceleration and maximum speed must be set from a smartphone that communicates via bluetooth with device. I also need a function that if I press three fast touches on the display with two fingers, the motor moves to the zero position (the zero p...

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    Hi - Looking for a Unity developer who can help us developing a sandbox environment for Physics electric circuit concept. For ex: Functionality will include two panels one left side panel holding all the circuit elements like wire,bulb,battery etc and second main panel at the center of the screen. Idea is to drag and drop elements from side panel to center panel and build circuit upon meeting certain conditions bulb will go. More details will be shared later.

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    I have attached a block diagram. PCB board is having one power slot with 24V 40A. Other power slots (Nos 3-5) in the range of 10A. Mosfet load switches need to be designed to switch power slots. Also automatic power supply switching from main smps supply to battery supply need to be implemented. Project milestones are: 1. Project specification requirement analysis and finalization. 2. Schematic diagram and electronic BOM.

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    Hi Luca Jons Ion W., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

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    The specification is as follows: PV voltage: 25-50 volt with 1 KW output power over the voltage range Load: ±120 V split single phase ac (60 Hz), <1 kW average and 2 kW peak power Battery voltage change range: 1-1.5 and max output power: 1 kW All capacitor voltage peak ripples: < 5% All inductor current peak ripples: < 50% (SEE PDF ATTACHMENT FOR FULL SPECS)

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    I am looking to develop a smart AC microgrid in MATLAB/Simulink with pv, battery storage system and utility grid (§ phase)

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    Hi everyone, I need an Android developer who can build a demo app for battery management via bluetooth. If you know what xiaoxiang is, it would be a great boost. Thank you.

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    I have a mechanism that can manufacture the rotors for the generator . I need the coils and the capacitor designed so the rotors rotate and collect the dc power renerated by the coils in...capicitor is discoraging another is charging . As there will be multi coils there must be multi capacitors to keep this process rotating . And it must be design for safety as there will be a lot of power being renerated and stored for release . This must be able to charge a 48v or 52v battery ok . Can you design if not i will put this back here to get others to design . But either way you must work with them to design capacitors and system to have the battery switch also switch output of capacitors into a battery which is not completely charged . I can send a step file . I need th...

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    i am starting a drop shipping website with the charger that is attached to the images below. 3 in 1 wireless travel charger.

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    I want to scrape the real time availability of a charging p... We get for example a charging plug with two outlets, plugs. While driving in my car, I want to be able to use a Siri Shortcut to ask Siri to check the availability of the charger. See the red marking on the attached image, currently 1 plug is available and one is already taken. This is updated in real time by the website Chargefinder.com. I would like the response to be "0 plugs available, 1 plug available or 2 plugs available", so I know if it's worth driving to the charger. So this would be a two step 1. Extract the availability data from 2. Help me make a Siri Shortcut which will read out the availability via the Siri voice Thank you!

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    i want to copy these common lifepo4 battery "balance board" and make 24 fit 86x28x6mm ..with all leds visible.

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    ...display module over SPI and have the ability to turn the screen off when not in use to save power. Some work has been done on this and the code can be modified or rewritten. Control a piezoelectric buzzer with different tones or strings of tones as a type of user feedback. The ability to choose which string of tones to play depending on the situation. Method to convert battery voltage measurements from an onboard ADC to battery capacity. Method of timing how long a user presses one of the buttons to distinguish between short and long presses. Each button will have multiple functions depending on how long the user presses the button. For special device functions two buttons will need to be pressed at the same time and we will need to monitor for that as well. An ISR w...

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    Currently have enterprise zoho creator We seek a talented productive person for weekly set part time hours , we invite odoo, zoho , HubSpot and others but please provide license fees monthly total ongoing in quotation Hybrid battery distributor in 3 countries CRM trial for applicant just integrate zoho invoices to inventory app - 1 day Quotation auto populate email template from emailed referrals suppliers referrals etc Marketing feature customized - simple Warranty field - inventory deduction , field date time notes approval supplier details and management Connect to our portal available for online status of warranty by customers globally 3 warehouses cross border 3 locations cross currency tax etc for invoicing Accounts vendors reseller b2b a...

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    I want to design logo for my business "Kunal Battery" . We provide Battery Services and sale new battery. I want to design logo which attract the client effectively. logo should be in Red and White theme.

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    Hello, I'm looking for a futuristic 3d design of a wall mounted solar battery. It would be a concept close to the tesla powerwall but not identical. We're looking for a futuristic looking rectangular box with the words "GAIA" in nasalization font. It should be 3 models one in black another in white and another with a light wood exterior. This is first concept of the box and is still very rough.

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    I would need a quadcopter drone put together having motors, escs, battery, and so on without a frame, but mounted on a board. Everything would already be connected together and ready to go ,without the need for calibration, using a remote control at the flip of a switch. The battery would be at least a 6s, but preferably higher like 8s. The motors would need to be high torque and be as flat or least in height as possible. They would need to have the metal shaft already attached and preferably a threaded shaft. The bottom of the motor would preferably be flat too. There are no any specific measurements really, but the motors would be short in height like around an inch in height ,for example, and the motor shaft would preferable be 5 mm in diameter. The motors would preferabl...

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    Design pcb to house an esp32 module and associated electronics to make distance measurements from 10mm to 140mm. Accuracy within +/-10mm. The ultrasonic sensor needs to be mounted external to pcb via a connector. Do not want ultrasonic modules on pcb, u must design that circuit yourself. The esp32 will be going into deepsleep, so u must shutdown any current that will drain the battery. Pcb must accept battery holder. Deliver the following: pcb, schematic and libraries (kikad or eagle) Manuf gerbers Excelfile with bom (digiket, mouser or RS links)

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    ...esp32 module and associated electronics to make distance measurements from 10mm to 140mm. Accuracy within +/-10mm. The ultrasonic sensor (SR04T waterproof sensor) needs to be mounted external to pcb via a connector. Do not want ultrasonic modules on pcb, u must design that circuit yourself. The esp32 will be going into deepsleep, so u must shutdown any current that will drain the battery. Pcb must accept battery holder. Esp32 module must be esp32-wroom Sensor must be waterproof, see image Details on sensor: Only use SR04T Waterproof Ultrasonic ,see article.. Deliver the following: pcb, schematic and

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