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Search Results for: 18650

Home › Search results for "18650" (Page 29)
March 10, 2021 0 In

Lithium Battery Charger Protection Module (BMS) 3S 20A 12.6V

Features:
  • 3S 11.1V 12.6V 20A 18650 lithium battery Management board.
  • Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery).
  • Continuous discharge current (upper limit): 20A (if the cooling environment is not good, please reduce the load current use).
  • Continuous charge current (upper limit): 20A.
  • Suitable for starting current below 40A, power 65W below the drill.
Specifications:
  • Charging Voltage: 12.6V-13V
  • Overcharge Voltage Range: 4.25V-4.35V ± 0.05V
  • Overpressure Voltage Range: 2.3V-3.0V ± 0.05V
  • Continuous charge current (upper limit): 10A
  • Maximum discharge current is 20A
  • Quiescent Current: less than 30uA
  • Internal Resistance: less than 45mohm
  • Effective Life: more than 50,000 hours
  • Operating Temperature: -40- +50 degrees
  • Storage Conditions: -40- +80 degrees
  • Continuous discharge current (upper limit): 20A (if the cooling environment is not good, please reduce the load current use)
  • Continuous charge current (upper limit): 10A.
  • Size is approximate 59x20x3.5mm
Precautions:
  • Please strictly follow the wiring 0V (B -), 3.7V (B1), 7.4V (B2), 11.1V (B +), do not deliberately short circuit.
  • Please charge after connecting the line, then it will have output.
  • When connecting three groups of batteries, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. Discharge test, the voltage drops quickly when the group of battery time difference battery.
  • Please do not mix the battery and the poor battery together! 3 sets of battery capacity/resistance closer to the better! (Two good batteries +1 a poor battery use effect = 3 poor battery use effect).
January 14, 2021 0 In

LED Rechargeable Desk LAMP And Power Bank DP-6037

Colour WHITE
Light Source Type LED
Power and Plug Description Battery Powered
Material Plastic
Brand ROCK SALES

About this item

  • 1. Light source power: 3.2W
  • 2. Battery capacity: 2000 mAh
  • 3. Amount of LED: 32
  • 4. Charging time: 3 hours
  • 5. Working time: 2-4 hours
  • Product Dimension:300 mm * 150 mm * 80mm

Cautions:

  • Keep the light away from flammable and explosive. The charging time can not more than 24 hours.(Suggest to charge at day time
  • Avoid short-circuit, break down and drop into fire.
  • Please do not shot your eyes with the emergency light, to avoid harming eye-sight. (Children must be guided by adults to use it properly.)
  • Keep the light away from rain and wetness.
  • Please cut off power supply immediately if any exception happened.
  • Do not repair this product for non-professionals.
  • Please install and use it properly according to manual. Do not arbitrarily modify lamps and replace parts.
  • Please cut off the power when maintain product to prevent electric shock.
  • Do not use it on the place more than 6°of the slope.
  • The light source is irreplaceable. Please replace the entire fixture if light source to its end.
  • Between the transformer live parts and the cable, the insulation is reinforced for this lamp.

Instruction manual:

  • Before using this product, please read the instructions. Please keep it for future reference after reading.
  • Charging with USB cable to connect adapter and lamp interface, 4 indicators lighting one by one. It means fully charged if the 4 indicators all lighting and no longer twinkle. Charging time about 3hours(One 18650 battery only)
  • Long press switch button 3seconds during no charged status, the power indicator will light on. First power indicator means 25% power, second means 50% power, third means 75% power, fourth means 100% power.
  • If need to charge for mobile phone, please connect through USB interface and long press switch button 3seconds, then the power indicator will light on. When the 25% power indicator is twinkle, it means that the battery is lack of power, please charge for built-in battery on time.(USB output stop working during charging for built-in battery)
  • Turn on desk lamp by short-press the switch button. First time is weak brightness, second time is strongest brightness, third time is light off. It could use about 3hours during strongest brightness status when battery full power.
  • Desk lamp could be support by 5V 1A adapter and power bank.(Please use quality assurance adapter)
  • It means that the battery is at the stage of discharging when LED bulb is dim during usage. Please stop using and charge it on time so as to protect the battery.(Please charge it before the lamp is dark fully to avoid damage the battery)
  • Frequent use is required. If you do mot use it frequently, please recharge it every 3 months. Otherwise the battery’s lifespan may be shortened.

Package Included:

1x LED Rechargeable Desk LAMP And Power Bank DP-6037

1x 20cm (2-Lighting to USB)
November 19, 2020 0 In

ESP8266 Nodemcu with 0.96 OLED extended Temperature and Humidity Development Board

ESP8266 NODEMCU 0.96 OLED Temperature Humidity Development Board Weather Station WIFI Attack

Feature:

1. The five key buttons are controlled by FLATH,RSET,D5,D6 and D7 respectively.
2. OLED SDA and SCL received D1 and D2 respectively.
3. Five digital pins can be configured separately the write/read/interrupt/PWM/I2C/one – wire supported
4. 1pc AD input.
5. Integrated 18650 battery charging and discharging system.
6. Micro USB input.
7. Compatible for Arduino.
8. Compatible for NodeMCU.
9. Wide voltage input range 5V~12V.
10. A switch can control the power supply of 18650.
11. 1pc programmable LED(D0).
12. Charging protection, Discharge protection.
13. The design concept originates from the open source project NodeMCU. The development board integrates 18650 charging and discharging systems with a charge and discharge protection, and integrates a OLED and five – direction button to facilitate the development.
14. The operation is consistent with NodeMCU, and a programmable LED is added. It can be controlled by GPIO16 and display the running state of 8266. Integrated with OLED and five key buttons, more convenient for development.

Specification:

Model:ESP-8266
Color: Black
Charging Protection: Yes
Discharge Protection: Yes
Compatible for NodeMCU
Wide Voltage Input Range: 5V~12V
Charge Current: 500 mA
Size(L*W*H): approx.102 x 30 x 20 mm/4.01 x 1.18 x 0.78”
Display Size: 0.96 Inch

Warm Tips:

1. Please do not burn the program during charging. When you burn the program, please unplug the battery and verify the switch is in ON position.
2. This product does not contain 18650 batteries.If the battery is in the wrong direction, the charging chip will be destroyed.
3. Recommend the use of 5V 500mA charging charger, more than 5V 1A there will be fever, does not affect the normal work, but in the process of charging charging chip do not touch or carry, the measured charge charging will rise to about 60 degrees with the diode chip,no heat during normal working hours, rest assured to carry.

Note:
Please allow 1-3mm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.

Package Content:
1 x ESP8266 Mini-WiFi NodeMCU Module with 10 Pins

4567
September 19, 2020 0 In

Power Bank Module 1A

Available Batteries: Polymer Battery 18650 Battery Lithium Battery Cell Phone Battery Tablet Battery MP3 Battery
Can be connected to a lithium battery can also be connected in multiple sections of lithium batteries, as long as the voltage is 3.7-4.2V in parallel , how many batteries is not affected
Size: about length 22MM * width 17MM * thick 11MM
input : 5V 1A
output :  5V 1A
lithium voltage : 3V- 4.3V
Ports : charger Micro USB Android port . Output USB port
charge indicator : when charging , the red led light; when full charged  , it off
it has protection functions, protect from over-charger / over-discharger/ over-load  ( support charger and discharger at the same time )
September 17, 2020 1 In

Lithium Battery Charger Protection Module (BMS) 6S 12A 25.2V

PCB BMS 6 Series 22V 18650 Lithium Battery Protection Board is a 6 string 22V circuit power tool mostly used for solar lighting, for dedicated 18650 battery packs. It is designed for 3.7V 18650 models lithium batteries for charging, Protection from overcharge and over-discharge. Battery protection board, as the name suggests battery protection board is mainly rechargeable (Refers to the lithium battery) and protects the integrated circuit board. Lithium battery (rechargeable type) so need protection, is determined by its own characteristics. As the lithium battery, its material determines itself can not be overcharge, over-discharge, overcurrent, short circuit, and ultra-high temperature charge and discharge, so lithium battery lithium components will always follow A protective plate with a sampling resistor, and a current fuse.

Protections
  • Short circuit protection
  • Overcharge protection
  • Over-discharge protection
  • Overcurrent protection
Features:
  • Charging voltage: 25.5V
  • maximum discharge current: 12A
  • Instantaneous discharge current: 20A
  • Overcharge detection voltage: 4.28 ± 0.05V
  •  protection delay: 0.1S
  •  release voltage: 4.08 ± 0.05V
  • Over discharge detection voltage: 2.55 ± 0.08V
  • Over discharge detection delay: 0.1S
  • The over-discharge release voltage: 2.9 ± 0.1V
  • Overcurrent detection voltage: 150mV
  • detection delay: 9MS
  • protection current: 30 ± 3A
  • protection release condition: Disconnect the load
  • Short circuit detection delay: 250uS
  • Short circuit protection Release condition: disconnect negative open
  • Main circuit conduction resistance: ≤20mΩ
  • Working current: ≤30uA
  • Sleep current (battery over-discharge) ≤10uA
  • Temperature range: -30°C/ + 80°C
  • Size: approx.54x36x3.5mm
  • 6 strings (for 6 18650 batteries or polymer lithium batteries in series)
  • 21.6V (rated voltage of polymer battery)
  • 22.2V (rated voltage of 18650 or 3.7V lithium battery)
  • 25.2V (voltage after the lithium battery is fully charged)
Application:
  • Battery pack
  • Power supply
  • Power bank and charger

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