Saturday, May 25, 2019

как проверить батарею с помощью мультиметра ЖК-цифровой тест батареи

how to test a battery with a multimeter

Как проверить автомобильный аккумулятор

 Вы можете использовать мультиметр, чтобы выяснить, достаточно ли заряжен аккумулятор. При включенных фарах при температуре 80 ° F между положительным и отрицательным контактами должно быть как минимум 11,8 В (заряжено 25%) и в идеале 12,5 В. Вы сможете дополнительно использовать измерительное устройство, чтобы предвидеть, если удельный вес жидкости в батарее составляет от 1 265 до 1,299



Тест автомобильного аккумулятора с цифровым мультиметром





, В этом руководстве рассказывается, как использовать цифровой мультиметр (или вольтметр) или измерительную систему, чтобы попытаться провести несколько простых тестов для определения состояния вашей батареи. Кроме того, он покажет вам способы избавиться от, очистить и вставить аккумулятор.

Если у вас возникли проблемы с началом работы в автомобиле или из-за необходимости держать аккумулятор заряженным, ваш недостаток также находится в системе начала или зарядки, однако, как правило, он находится внутри самой батареи. Изношенная батарея, нездоровые клеммы, накопление кислоты и травма корпуса батареи - мера самых распространенных причин возникновения проблем и проблем с зарядкой



Как определить, заряжена ли ваша свинцово-кислотная батарея

Здесь вы можете использовать стратегии области 2, чтобы выяснить состояние ваших простых инструментов диагностики плохого обращения с аккумулятором.



Первый способ - использовать цифровой мультиметр, чтобы быстро проверить, достаточно ли заряда вашей батареи, чтобы начать работу в автомобиле. это может быть самым простым средством для батарей, которые не требуют технического обслуживания и не имеют съемных крышек. Некоторые необслуживаемые аккумуляторы связаны с индикатором заряда, индикатором высокого уровня заряда аккумулятора, который указывает, полностью ли заряжен аккумулятор (зеленая точка), не требуется ли заряд (цвет не виден) или неисправен (желтая точка).



Вторая техника использует гравиметр. в отличие от цифрового мультиметра, гравиметр будет показывать не только уровень заряда батареи, но и общее состояние ее здоровья. Вы можете задержать, если ваша батарея выйдет из строя. однако вы будете использовать этот инструмент исключительно на батареях со съемными крышками. Вы будете покупать разумный гравиметр в большинстве магазинов автомобильных компонентов или в Интернете.





1. способ взглянуть на зарядку вашего автомобильного аккумулятора с помощью мультиметра

Вы можете использовать свой цифровой мультиметр, чтобы выяснить, достаточно ли в вашей свинцово-кислотной батарее сока, чтобы стимулировать движение вашего автомобиля.

1. Сначала установите свой измеритель на двадцать вольт постоянного тока. Смотрите видео ниже.

2. прикусите отрицательную (черную) клемму батареи отрицательным (черным) измерительным щупом.

3. прикусите положительную (красную) клемму батареи положительным (красным) измерительным щупом.

4. поднимите ассистента ассистента степени, чтобы показать на фарах, чтобы произвести батарею с легкой нагрузкой.

5. Проверьте показания счетчика. При температуре около 80 ° F (26,6 ° C)

6. Показание около 12,5 В или выше означает, что ваша батарея имеет ощутимый заряд.

7. Показание около двенадцати,3 вольт означает, что ваша батарея заряжена на семьдесят пятых.

8. Показание 11,8 В или ниже означает, что ваша батарея заряжена на двадцать пятую или менее.

Если вы купили кофе для чтения, медленно зарядите батарею, чтобы улучшить химическую замену батареи, и повторите попытку. Если ваше чтение не идет выше, замените батарею.

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Brand Name: all sun



Type: Vehicle Battery Tester


Model Number: GK503





DIY Supplies: Electrical




Alternator Checking: Yes




Battery Test: Yes


Display:6 LED




Price: US $8.88 /
Discount Price:  -26% 4 days left



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Friday, May 24, 2019

Battery management system design-battery BMS Charging Voltage 54.6V

battery management system design

Best original battery  Daly 3.6V 3.7V 13S 48V E-bike Li-ion battery 18650 BMS 16A 18A 25A 35A 45A 60A battery BMS Charging Voltage 54.6V With a balance




.Price:
US $16 - 30

754 orders



  • Know more 
  • Click here
  • Brand Name: DALY
  • Accessory Type: Battery Accessories
  • Model Number: DL13S
  • Applications:3.7V lithium battery rated
  • Battery series:13S
  • Overcharge protection: Yes
  • Over-discharge voltage: Yes
  • Short circuit protection: Yes
  • Balance function: Yes
  • with heat sink: Yes
  • Accessory Type: Battery Accessories

Best Batteries And Charger with Storage Box

Best Batteries

This battery is very high quality. It is an original battery.

The brand name is  PATCHSKY. Compatible Action Camera Brand is GoPro.It  Model Number is TELESIN 3 Way charger and battery. Compatible Action Camera Brand GoPro Hero 5 hero 6 black.
You can get TELESIN 3-way Battery Charger and 3 Batteries Kit, Charging Storage Box with Replacement Battery for GoPro Hero 7 Black Hero 5 6.

This battery and charger Price is the US $6.80 - 40.82.
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So I Hope it a very high-quality battery at low price .so you can buy very easily.
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Tuesday, May 21, 2019

Best hoverboard under 300


Best hoverboard  in 2019 under 300$

Best hoverboard

MEGAWHEELS good Hoverboard - UL Certified Safety Battery colorful diode Lights Self-Balancing Hover Board

Currently unavailable.

We don't understand once or if this item is back available.
SAFETY IS OUR PRIORITY FOR RIDER: advanced electrical & Self-balancing System along with Anti-fire Shell Protection, MEGAWHEELS The hoverboard can guarantee Safe Riding Indoor and outside.
UNIQUE style PATENT: Elaborate style permits Our Hoverboard to possess a singular look and

deliver the goods the best Expression of Functions. [Good-looking, sensible and Stable]
POWERFUL MOTOR BATTERY: good Hoverboard Carries twin 250W Motors and licensed High Power Battery which might create your Board Speedup to goop seven.5MPH and ten metric linear units Long vary.
COLORFUL LIGHTS: Riding Hover Board ought to be a contented factor, additional Fun with colorful Lights once Riding, Coolest Riding expertise.
A GOOD GIFT / TOY FOR KIDS: Became knowledgeable Hoverboard Rider in five Minutes by its Easy-Learning System. relish Happy Times with MEGAWHEELS Hover Board in barely an instant


Best hoverboard
Price:
US $142.84 - 257.13 / piece

Discount Price:
US $99.99 - 179.99 /piece
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  • Read more

  • brand Name:iscooter
  • CE Certification: Yes
  • Power Supply: Lithium Battery
  • Range per Power:10 - 30 km
  • Wattage:> 500w
  • Frame Material: Aluminum/Alloy
  • Voltage: of Battery:36v
  • Type: Two Wheels
  • Certification:UL,FCC
  • Max Speed:10KM/H
  • Size:6.5 inch
  • Ship from: Germany
  • Wheel Size:6.5 inch
  • color:Chrome golden,purple,silver
  • battery:4400mAh
  • charging time:1-2hours
  • range:10-15km/h

  • Read more


Monday, May 20, 2019

Best voltage regulator 2019

New Version Best voltage regulator


Best voltage regulato


 This is the Adafruit Feather 32u4 Lora Radio (RFM9x). we have a tendency to decision these RadioFruits, our war Associate in Nursing microcontroller with a "Long vary (LoRa)" packet radio transceiver with inbuilt USB and battery charging. It's Associate in Nursing Adafruit Feather 32u4 with an 868/915 MHz radio module toasted in! nice for creating wireless networks which will go more than a pair of.4GHz 802.15.4 and similar, area unit a lot of versatile than Bluetooth autoimmune disease and while not the high power needs of wireless local area network.


Feather is that the new development board from Adafruit, and like its someone, it's skinny, light, and permits you to fly! we have a tendency to designed Feather to be a brand new normal for transportable microcontroller cores. we've got different boards within the Feather family, check'em out here.


This is the 900 MHz radio version, which might be used for either 868MHz or 915MHz transmission/reception - the precise frequency is decided once you load the computer code since it is often tuned around dynamically. we have a tendency to conjointly sell a 433MHz version of an equivalent radio chipset! And if you do not would like Lora radio, we've got plain 900MHz packet radios also


At the Feather three2u4's heart is at ATmega32u4 clocked at eight MHz and at 3.3V logic, a chip setup we've had heaps of expertise with as it is the same because of the Flora. This chip has 32K of flash and 2K of RAM, with inbuilt USB therefore not solely will it have a USB-to-Serial program capability inbuilt with no would like for Associate in Nursing FTDI-like chip, it may also act sort of a mouse, keyboard, USB MIDI device, etc.


To make it straightforward to use for transportable comes, we have a tendency to add a connection for any of our three.7V Li compound batteries and inbuilt battery charging. you do not would like A battery, it'll run simply fine straight from the small USB connection. But, if you are doing have A battery, you'll take it on the go, then connect the USB to recharge. The Feather can mechanically exchange to USB power once it is accessible. we have a tendency to conjointly tied the battery through a divider to Associate in the Nursing analog pin, therefore you'll live and monitor the battery voltage to sight once you would like a recharge.

 Best voltage regulator

Price: US $16.22



Discount: 6%

Here are some handy specs! Like all Feather 32u4's you get:


  • Brand Name: Your Cee
  • Type: Voltage Regulator
  • Condition: New
  • Supply Voltage:3.3V-7V
  • Dissipation Power: low
  • Operating Temperature:-40 - 90 Celsius Degree
  • Model Number: Lora ESP32 Oled
  • is_customized: Yes
  • Dominant Frequency: 240MHZ
    Flash: 8Mbyte
    Processor: Tensilica LX6 Dual Core
    Master chip: ESP32
    Lora chip: SX1276

  • Open communication distance: 2.8KM
    Computing capacity: up to 600DMIPS
    Dual-mode Bluetooth: traditional Bluetooth and BLE low-power Bluetooth
    Development environment: perfect support for Arduino
    Operating voltage: 3.3-7V
    Operating temperature range: -40-90 ℃
    Receiver sensitivity: -139dbm (SD12, 125KHz)
    UDP continuous throughput: 135Mbps
    USB adapter chip: CP2102
    Support mode: Sniffer, Station, softAP and Wi-Fi Direct



Sunday, May 19, 2019

Best Electronic LCD Writing tablets For kids children 2019

Do you need some high technical school notebook?

LCD Writing tablets

There area unit LCD writing tablets you'll use for drawing, notebook, workplace memoranda or maybe reception for your daily listing. This sensible electronic pad of paper typically composed of the liquid show and supply a fairly bright red. You don’t ought to recharge them as principally they high-powered up by coin-cell that is comfortable for 2-3 years and at that time, you'll simply replace the battery. Where most of the eWriter tablets go along with a screen, lacking storing feature and for saving the work all you'll do is take photos of the screen, however currently there are writing pads with smartphone app enable simple synchronize and share of your notes with email, Google Drive, and Evernote, etc. For delivering the important expertise, these devices additionally feature pressure sensitivity that allows you to draw thick and skinny lines supported the pressure you insert mistreatment the pen. Although you'll draw on the digital pad of paper except for skilled drawing and advanced tasks exacting the strong and feature-rich device, we advise going for drawing tablets that area unit specifically designed to unleash your creativeness. Are These Writing Tablets area unit sensible or helpfulDigital pads may be productive in multiple ways in which? you'll teach your children basics and easy mathematics. For this, you oughtn't to pay cash once more and once more for purchasing papers in addition to avoiding garbage. moreover, this area unit eco-friendly and safe permitting your kid to mess around and draw things whereas you'll specialize in alternative stuff. You can enlist daily routine work or grocery list while not wasting any piece of paper. Another major benefit: if somebody is unable to speak then he/she will convey by writing on these tablets. tired of these wonderful devices don't seem to be only for vogue or sing their own praises instead one will build use of them fruitfully.

Price: US $12.15 - 13.13

Discount: 29%

B    Color: 5
  • LCD Writing tablets
    Brand Name: CHIPAL
  • Type: Digital Tablets
  • Screen Size(diagonal):12"
  • Tablet Width:125mm
    • Package: Yes
    • Pressure Levels:512
    • Tablet length:283mm
    • Resolution Ratio:2048lpi
    • Model Number:12'' Electronic Drawing Tablet
    • Material: ABS Plastic
    • Screen Resolution:1920 x 1080
    • Type: Graphics Tablets
    • Type 1: Electronic Writing Pads
    • Type 2: Graphics Drawing Tablet
    • Type 3: Pad Board
    • Type 4: Graphics Pad
    • Type 5: Inch Tablet
    • Type 6: Paint Tablet
    • Feature 1: With Stylus Pen + Button Battery
    • Feature 2: One-click Clean























































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