# Battery charging jobs

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16,430 battery charging jobs found, pricing in USD

A 3V dc motor is driven by H-bridge with Teency 3.2 and an external 4.5v battery pack. How to control length of the pendulum by driving motor clockwise or anticlockwise according to the target period. Consider the target and measured pendulum period as 16bit unsigned value in milisecond. Vary the length of pendulum between 10cm to 60cm. Raw data of period can be generated using below formula. T =...

\$12 (Avg Bid)
\$12 Avg Bid
5 bids

I have a product scoping document that I want changed and ready to put on our web sites, [login to view URL] and treckmasters.online. I have a video of the graphene enhanced battery (that we will be using being cut in half and still working not orver heating or eploding. I want certain images in the video enhanced. I also have images of our testing of our specially designed sensors beting teste...

\$307 (Avg Bid)
\$307 Avg Bid
7 bids

I bought my vector robot brand new but his battery needs to be replaced. He only works when he's on his dock but as soon as he rolls of he shuts off, and it's a complicated because you would litterally have to take him apart to replace his battery and some how take the battery that's been soldered on to his main frame. I've seen videos of people doing it but I do not know how t...

\$150 (Avg Bid)
\$150 Avg Bid
2 bids

Hi There I hope you and your family are safe and doing well I have figure ( draw ) of piping system of stacks of cells of vanadium flow battery and there is resistances in the piping system I need to calculate the values of the resistances when the battery fully charged and when the battery fully discharged , so When the battery fully charged the anolyte will have V2 and the catholyte will have...

\$21 (Avg Bid)
\$21 Avg Bid
10 bids

I'd like you to design the colors of the attached model. Prefer the top section to be carbon fiber black with green starting from edges of top and the sides. Bottom side should be black with hint of green style Both Sides should have text "M7md" with text color black Should also add the 2 handles, battery handle and feet compartment (they don't have to be exact just to hav...

\$37 (Avg Bid)
\$37 Avg Bid
5 bids

I want to build a prototype for Water level monitor using ultrasonic sensor using Sigfox (RC1). This should be simple,have good antenna reception, a battery that can last at least 5 years, send 1 message every 10mins and should be simple to install. Should also provide all the relevant documentation for the prototype.

\$462 (Avg Bid)
\$462 Avg Bid
4 bids

Voice Life Inc. has developed a groundbreaking 2 Minute Charge and RF-based charging technology that will fundamentally change the way you think about charging your portable electronic devices. The Voice Life charging system delivers 2 Minute charge and energy over the air in your home, office, car or practically any other space you can imagine via a contained energy power pack. Mobile, wire-free...

\$28 / hr (Avg Bid)
\$28 / hr Avg Bid
25 bids

Title: What preparation you should do before running? Anchor Text: TWS Earbuds for Sport(only IP rating 4-7 mentioned), Fusion Series Wireless Earbuds, etc. Purpose: To highlight the functions of TWS earbuds playing for people’s workouts - grip fit, ergonomical design for comfort, waterproof, long battery life, ANC, connectivity, device compatibility, independent connection(of two earbuds ...

\$51 (Avg Bid)
\$51 Avg Bid
44 bids

We interested in developing a instrument tool that using existing off the shelf technology. The instrument tool includes: 1.) Sensor and wireless transmitter that is battery operated. The battery life needs to be for one month. The transmitter requires to send data (not in the 2.4 and 5.0 GHZ signal range) to the receiver which is 20 m away. 2. The receiver gathers the data through receiver ...

\$796 (Avg Bid)
\$796 Avg Bid
14 bids

I'd like you to design the colors of the attached model. Prefer the top section to be carbon fiber black with green starting from edges of top and the sides. Bottom side should be black with hint of green style Both Sides should have text "M7md" with text color black Should also add the 2 handles, battery handle and feet compartment, attached them below. (they don't have to...

\$190 (Avg Bid)
\$190
8 entries

I'd like you to design the colors of the attached model. Prefer the top section to be carbon fiber black with green starting from edges of top and the sides. Bottom side should be black with hint of green style Both Sides should have text "M7md" with text color black Should also add the 2 handles, battery handle and feet compartment (they don't have to be exact just to hav...

\$25 (Avg Bid)
\$25 Avg Bid
4 bids
Build A Full Website 5 days left
VERIFIED

Build a full website in WordPress with 10 pages. Pages will include contact forms and customized calculators that can determine what kind of battery a customer could purchase. We would have a list of products that could be on an eCommerce platform but will be mainly focusing on business to business. We would like the look and feel of a Tesla website.

\$3698 (Avg Bid)
\$3698 Avg Bid
184 bids

Hi Andrei V., I noticed your profile and would like to offer you my project. We can discuss any details over chat. I need a LiPoly two 3.7V 500mA battery charger, in series. this TI part has schematic etc. I need 2 things to start; first, create a BoM from the schematic and look up the smallest parts possible and link into spreadsheet. 2nd review design and comment as to if everything looks good a...

\$10 / hr (Avg Bid)
\$10 / hr Avg Bid
1 bids

We have a new website using the plugin GEODIRECTORY. We need this plugin ([login to view URL]) to work seamlessly with the website and be effective and easy to use. We are especially interested in charging businesses for "enhanced" business listings. We need to effectively display the options, integrate with our woo-commerce (or other shopping carts), and make it very easy to buy from...

\$30 - \$250
\$30 - \$250
17 bids

I have a circuit design of TP4056 with protection a Lithium-ion battery charging module. I would like to make the following changes into that and develop Gerber files for each. For 1W LED output 1. Adding a 3ohm (0.25W) resistor before +VE output 2. Adding a 1N4001 Diode after -VE input terminal. 3. Separate PCB of 3 SMD LED in parallel, (3.3V, 0.4A max per led) 4. Adding trademark on PCB 5. Addi...

\$19 (Avg Bid)
\$19 Avg Bid
18 bids

Create Circuit Boards for Raspberry PI Compute Module 3 Breakout Board for Raspberry Pi CM3+ 2X USB A Ports 1X DSI Input for Display 4X buttons (to trigger GPIO ) 1X Ethernet Port 2X CAN BUS (1 MBIT with MCP2515 based on PICAN DUO Layout) 120 ohm End resistors should be broken out to the main connector to be able to enable / disable via loop on main connector 8X Analog 0-5 V inputs (with ov...

\$372 (Avg Bid)
\$372 Avg Bid
11 bids

My Iphone SE battery seems to discharge too quickly. I have tried most setting changes etc. I would really appreciate if someone can help with resolving this issue.

\$29 (Avg Bid)
\$29 Avg Bid
2 bids

I'm looking for a bright electrical engineer that can design a powerful but efficient ~40,000lum flashlight driver/step-up convertor that can be controlled using PWM. Input voltage: 4*18650 Battery 14.8v Driver Design: PWM control input (on/off, dim, strobe) 40mm-45mm diameter PCB Spring in the center and ground ring around it for direct contact to power (see attached pictures) Overheat, op...

\$333 (Avg Bid)
\$333 Avg Bid
24 bids

Design a LED lamp with these functions: 1) Function: light out, light on, motion dector 2) The motion detector not only works in the dark, but also during the day. It can detect people's movement at night and during the day in low light (ambience is dark enough). Automatic switch-on within 1 m, automatic switch-off after approx. for example 20 seconds if no movement is detected. Can be turne...

\$44 / hr (Avg Bid)
\$44 / hr Avg Bid
30 bids
sketeches of a speaker 4 days left

Hi there, I need: Speaker with battery and normal power plug Scandinavian design wood must be screwed to a base because of the bass I think Fabric power cable Main materials: aluminium, wood and speaker cover in light gray cloth Touch control on the top for play, pause, last track, next track and volume (with led light) Impressions: [login to view URL] [login to view URL]

\$58 (Avg Bid)
\$58
2 entries

Maxwell and Spark design and build li-ion batteries and associated products. We are considering producing our own range of battery chargers but presently are under-staffed in internal electronic engineers. 48V, 200 amp would be the model we would want to start with. 380V 3-phase AC input. We are seeking a qualified and experienced electronic / power electronics engineer to undertake this project ...

\$6722 (Avg Bid)
\$6722 Avg Bid
18 bids

• 2-way communication • Multilayered SMD • 18650 Battery + charging • Max 1uA stand-by, max 10mA talk • 3W audio amplifier • Open communication on touch (so no button) • Connect to each other on power up • auto-close connection after 30s (to Bluetooth idle mode) • NO Arduino/raspberry/Pi/ESP32 or other amateur stuff • BOM + Gerber files &...

\$818 (Avg Bid)
\$818 Avg Bid
9 bids

You must speak conversational English You must have at least 30MB internet download speed to watch live stream of machine working We currently use Visual Studio to program the system, Arduino IDE cannot handle size of system. We have a device that rotates 360 degrees, and has a 12 Volt, 100Amp battery on it. [login to view URL] mini The code base is very large, at least 80K We have XBEE Pro on th...

\$1115 (Avg Bid)
\$1115 Avg Bid
24 bids

We need a Cordova Plugin upgraded to support the latest iZettle SDK for iOS devices. Currenly we are using a cordova plugin which supports iZettle SDK up to v2.5.3. In the new iZettle SDK v3.0.0 API keys are deprecated and replaced by OAuth 2.0. The migration guide to iZettle SDK v3.0.0 can be found here; [login to view URL] The current cordova plugin which we use is working until iZettle...

\$165 (Avg Bid)
\$165 Avg Bid
3 bids

We need a Cordova Plugin upgraded to support the latest iZettle SDK for iOS devices. Currenly we are using a cordova plugin which supports iZettle SDK up to v2.5.3. In the new iZettle SDK v3.0.0 API keys are deprecated and replaced by OAuth 2.0. The migration guide to iZettle SDK v3.0.0 can be found here; [login to view URL] The current cordova plugin which we use is working until iZettle...

\$155 (Avg Bid)
\$155 Avg Bid
7 bids

1. Deliver Wake up on BLE for DWM1001 Modules - \$200 2. Delivery Close Proximity Alerts for Anchor and Tags - \$200 3. Final delivery of source code with documentation and battery consumption report - \$100

\$364 (Avg Bid)
\$364 Avg Bid
1 bids

1. Deliver Wake up on BLE for DWM1001 Modules - \$200 2. Delivery Close Proximity Alerts for Anchor and Tags - \$200 3. Final delivery of source code with documentation and battery consumption report - \$100

\$364 (Avg Bid)
\$364 Avg Bid
1 bids

1. Deliver Wake up on BLE for DWM1001 Modules - \$200 2. Delivery Close Proximity Alerts for Anchor and Tags - \$200 3. Final delivery of source code with documentation and battery consumption report - \$100

\$364 (Avg Bid)
\$364 Avg Bid
1 bids

1. Deliver Wake up on BLE for DWM1001 Modules - \$200 2. Delivery Close Proximity Alerts for Anchor and Tags - \$200 3. Final delivery of source code with documentation and battery consumption report - \$100

\$364 (Avg Bid)
\$364 Avg Bid
1 bids

I need to have 2 million website quality back link the back link should be high-quality and we should do the process well I need a battery for my e-commerce website which is currently operating in 167 countries

\$83 (Avg Bid)
\$83 Avg Bid
19 bids

Sine Wave Inverter Capacity 900 VA, Rated Power 756 W Supports single [login to view URL] for sensitive appliances with Sine wave out-put. Three Stage Charging for safe & efficient charging and longer battery life. 4-step battery type selection. long life with overload protection with auto reset power conditions with rugged technology design for high performance and longer back-up time. Suppor...

\$20 (Avg Bid)
\$20 Avg Bid
1 bids

A 3d model of a battery box with detail

\$127 (Avg Bid)
\$127 Avg Bid
63 bids

Complete charging design. Construction design, dimension identification and perfecting winding mecahnism.

\$70 (Avg Bid)
\$70 Avg Bid
1 bids

Hi I'm opening up a electric vehicles and battery refurbishment, repair and manufacturing service and need a logo. I'm not creative in the slightest so would need some ideas from some creatively minded folk. My planned name is wizztech electrical, However I'm open to suggestions. Thanks

\$72 (Avg Bid)
\$72 Avg Bid
104 bids

Project to create a environmental monitoring unit. We want a "rough" estimate of cost for such a project. Key features: KiCAD, STM32CubeIDE, C, Public software and hardware. Energy harvesting (solar cell + battery). Outdoor environment [-40gC, 40gC] Temperature, rain, sun sensors. Sound recording (for birds and pollinators). Ultrasound (? for bats) // Göran Hasse

\$35 / hr (Avg Bid)
\$35 / hr Avg Bid
20 bids

50 units of gps tracking devices for vehicles telling the location, the fuel level, the battery level and threat alarms.

\$368 (Avg Bid)
\$368 Avg Bid
3 bids

Looking for an individual to consult and program a Lora node system. I would like to make sure the data is being sent and received with consistency. The micro-controller that seems to be best would be a esp32. I would like the system to be low-cost. I am open to a professional recommendation. Transceiver: • Collect data from a HX711 ADC every 10 minutes [[login to view URL]] • Be able...

\$208 (Avg Bid)
\$208 Avg Bid
11 bids
Fix Hardware Issue 1 day left
VERIFIED

Hello, I'm having a hardware issue. I had the A2 Error on my computer which I believed I fixed by removing my HDD. Before that, I had to, about every 2 or 3 days reset my CMOS by removing the motherboard's battery so I could start up my PC, but recently I can't to that anymore. After fixing the A2 error, I had to reset my CMOS again, but this time, I couldn't use my keyboard to...

\$30 (Avg Bid)
\$30 Avg Bid
8 bids

I am looking for an electronic design using 'minimalistic components' to improve battery balancing. The circuit will be embedded inside the battery with not more than one communication cable between the batteries. 1. The balancing should work both series and parallel connected batteries / battery strings. 2. The battery current has built in sensors for current and voltage. 3. The ...

\$426 (Avg Bid)
\$426 Avg Bid
26 bids

I am opening a new clinic and I am seeking a website content and copywriter to put together content that sells for my website. It will need keywords to assist with google ranking etc. 1. Home Page 2. About Us 3. All Treatments (this will need research in putting content together) 3.1. Remedial Massage 3.2. Sport Massage 3.3. Myotherapy 3.4. Dry Needling 3.5. Cupping Therapy 3.6...

\$87 (Avg Bid)
\$87 Avg Bid
45 bids

Wireless charging system for UAV, cupping coils :200w, litz awg40, operating frequency 100 kHz . In Ansys hfss or comsol

\$128 (Avg Bid)
\$128 Avg Bid
1 bids

Design a wire less charging system for UAV . Cupping coil with AWG 40 , power 200w , frequency 100 kHz . In ansys hfss or comsol

\$107 (Avg Bid)
\$107 Avg Bid
1 bids

Complete design, schematic preparation, BOM list, firmware code, Proteus simulation and offsite support for 3 Phase, 10 kW ongrid solar & battery hybrid inverter along with MPPT suitable to operate in ongrids mode as well as island mode based on the requirement. during island mode of operation, the inverter should recharge the battery banks through its inbuilt 48V DC boost battery charger whic...

\$299 (Avg Bid)
\$299 Avg Bid
6 bids

Create a website (Hopefully wordpress site with WooCommerece) - to sell product - Have 100's of different component products that need to be searched for in various ways like by the product they would fit or based upon a specific product which items would fit it. (Think batteries, certain devices take very specific batteries) - accept credit cards - calculate UPS shipping costs. - and displ...

\$3736 (Avg Bid)
\$3736 Avg Bid
90 bids

I would like to create a few graphics of my product being shown in mutiple mock up styles such as floating etc I will share more details upon approval of work need someone to work with long term and low budget ! Will require for 2 brands

\$16 (Avg Bid)
\$16 Avg Bid
9 bids

I need Computer based package to train a person on how to drive a forklift in a warehouse ( Forklift Simulation based on unreal engine ). ::::::::::Requirement ::: There is a requirement to develop a Computer Based Package (CBT) to train a person on how to drive a Forklift in a Warehouse or in a Shopping mall for picking up and placing cargo/items. The following capabilities are to be featured i...

\$12400 (Avg Bid)
\$12400 Avg Bid
5 bids

We have developed tech that turned all grades of contaminated waste plastic to energy. The tech fits inside of two 40 foot containers. I want the video to be around 60 seconds long. I want to see people walking down a street, dropping waste into a rubbish bin. Then a truck picking the waste up, driving to a waste facility. Dropping the waste into out tech. Then a car/truck filling up with the fue...

\$1075 (Avg Bid)
\$1075 Avg Bid
14 bids

Our concept is to build a floating grow tunnel to produce herbaceous biomass (elephant grass/hemp or possibly vegetables for food and waste streams) for placement into an terrestrial anaerobic digester to produce methane for combustion to produce renewable electricity. The electricity will be stored in a battery, to be supplied to the grid during peak hours, mitigating the need for fossil fuel pe...

\$44 (Avg Bid)
\$44 Avg Bid
9 bids