The Best 3.7 Volt Battery Charger Circuit of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 3.7 Volt Battery Charger Circuit of 2022. Check our ranking below.
2,878 (random num) Reviews Scanned
Rank No. #1
JacobsParts Smallest USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input (2 Pack)
- An ultra-small, 1A charging board for 3.7V lithium batteries with USB Type-C power input and LED charge indicators
- Charges to 4.2V, provides 100mA pre-charging for batteries with voltages under 2.9V
- Incorporates automatic charge cycle termination and resumption for efficient charging
- Integrates safety features including over-current, over-voltage, and under-voltage protection for secure charging
- Compact and lightweight design (14×18×5mm), easy to install and use.
Rank No. #2
UMLIFE 10 Pack Ultra-Mini USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input
- Input voltage range: 5~6V； over-current, over-voltage, and under-voltage protection
- Output voltage: 4.2V
- An ultra-small, 1A charging board for 3.7V lithium batteries with USB Type-C power input and LED charge indicators
- Support Type-C interface power supply, compatible with most PD fast charging heads
- The input terminal has a Type-c USB female socket, which can be directly used as an input to charge the lithium battery with a mobile phone charger.
SaleRank No. #3
XIITIA 20pcs Mini USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators(Type-C Port)
- ★An ultra-small, 1A charging board for 3.7V lithium batteries with USB Type-C power input and LED charge indicators.
- ★Charges to 4.2V, provides 100mA pre-charging for batteries with voltages under 2.9V; Incorporates automatic charge cycle termination and resumption for efficient charging.
- ★With protection board, over-voltage protection, over-discharge protection, and over-current protection. Over-discharge protection value 2.4V; Over-current protection value: 4A
- ★Suitable for all types of 3.7V lithium batteries,small appliances modification and tablet PC retrofit charging port. Suitable for single lithium battery (parallel connection is not limited, can not be connected in series).
- ★Note: The first time you use it, you need to connect the power supply to activate the Charging protection board! If you are the first time to do this job, we suggest you can watch related video on the Internet before installation.
Rank No. #4
Anmbest 5PCS 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell
- HIGH-ACCURACY, HIGHLY DURABLE: High-accuracy voltage detection circuit, fine workmanship and durable, Effective life greater than 50000 hours.
- MULTIPLE PROTECTION: Over-discharge protection, overcurrent protection, overcharge protection, short circuit protection; A combination of 4 safety features that work together to provide ultimate protection for your devices, your chargers and most importantly:you.
- LOW STANDBY CURRENT: MOS transistor can control the battery charge and discharge, low standby current consumption.
- WIDELY APPLICATIONS: Use for variety of capacities and various shapes 3.7V lithium batteries,Massager battery pack, LED light backup power supply, solar street light battery pack, monitor standby power supply, etc.
- ATTENTION: Strictly according to the diagram wiring: B+: connected battery positive, B-: connect to battery negative, P+: connection charge / discharge positive, P- connection charge / discharge negative, Otherwise it will cause damage to the chip. After connection,it need to first charge activation, then will have the output.
Rank No. #5
MakerFocus 6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Mobile Power Protection PCB Board Module
- ★ MCU users, if you accept a small load KEY can be connected to the microcontroller about 20s to provide a low level allows the module to continue working. Trigger mode: low level trigger (ground)
- ★ 4 in 1 Charging / Discharging / Lithium Battery Protection / Battery Level Indicator Module. Lithium battery protection function: over-current, overvoltage, over-temperature, short circuit protection
- ★ In discharge mode (The charging mode KEY function is invalid), trigger the KEY port once to open the output; continuously trigger the KEY port twice to close the output
- ★ The first time the load is connected, the output is automatically turned on. If the load is less than 50mA, the output will be automatically turned off after 30 seconds; if the load is greater than 50mA, the output will be automatically turned on
- ★ Allow discharge while charging. (Note: At this time output voltage 4.7 / 5V)
Rank No. #6
Universal Intelligent Smart Battery Charger for 3.7V Li-ion Packs (4.2V 1000mA Output)
- Charges any 3.7V Li-ion Rechargeable Battery Packs. (Not for charging individual Li-ion unprotected cells)
- Packs must have a built-in PCB (Protection Circuit Board)
- Intelligent Smart Charger. Power cuts off when full.
- Status light indicates charging status. Red if charging. Green when full.
- Standard 5.25mm x 2.1mm power connector. 4.2V 1A Power Output. Standard US power plug
SaleRank No. #7
6 Pcs Battery Charger Module USB TP4056 3.7V 4.2V to 9V 5V 2A Charge Discharge Integrated Step Up Module,18650 Lithium Li-ion Battery Charger Module
- Material: Battery charger module made of electronic components.Can be used for multimeter, converted to lithium battery charging
- Features: Battery charger module combines the TP4056 battery charger with a boost circuit. Adds a battery and converts a low power DC device to a USB rechargeable device
- Instructions for use: TP4056 Charger Module can be used for multimeter to convert to charge lithium batteries. VIN+ port input 5V solar panel, BAT+ port can output 4.2V to charger 3.7V 18650 battery
- Small and delicate: 1.3 in x 0.92 in/33 mm x 23 mm
- Package contains: 6 * Lithium Li-ion Battery Charger Module
Rank No. #8
DALY 24V BMS li-ion 7S 50A with Balance Wire and Temperature Sensor for Rated 3.7V Lithium Battery Power Bank Short Circuit Protection（Standard BMS,50A）
- [DALY BMS]Overcurrent,Overcharge,Overdischarge,Short circuit, Temperature protection.DALY BMS maximizes optimizes the lithium battery performance, and extends the battery lifetime to a large extent.
- [Double Protection] Double protection by injection patent technology and patent shell.Waterproof,Dustproof,Shockproof and Anti-static;High-quality components, pressure-resistant and durable material, high acquisition accuracy.
- [Easy to install]Easy to plug and unplug, which allows you to effortlessly create an electrical connection between the battery pack and the BMS.
- [Note] Standard BMS dosen't have communication functions. If you need smart BMS, active balancer, parallel module or other accessories, please contact online customer service.We offer 24-hour one-on-one customer service and lifetime technical support.
- [Packing List]3.7V Li-ion BMS*1,NTC sensor*1,Sampling cable*1,Instruction Manual*1.Quality Guarantee--- ISO/ FCC/ RoHS/ PSE/ CE APPROVED
Rank No. #9
8PCS 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery Charging Boost Mobile Power Supply Charge and Discharge Protection Converter Protection PCB Board Module
- ❃❃ MCU users, if you accept a small load KEY can be connected to the microcontroller about 20s to provide a low level allows the module to continue working. Trigger mode: low level trigger (ground).
- ❃❃ 4 in 1 Charging / Discharging / Lithium Battery Protection / Battery Level Indicator Module. Lithium battery protection function: over-current, overvoltage, over-temperature, short circuit protection.
- ❃❃ The output opens automatically at the first time the load is connected.If the load is less than 50MA, automatically close the output after 30 seconds;If the load is greater than 50MA, the output opens automatically.
- ❃❃ High Power High Efficiency: Discharge efficiency up to 96%. In discharge mode (The charging mode KEY function is invalid), trigger the KEY port once to open the output; continuously trigger the KEY port twice to close the output.
- ❃❃ Can be applied to solar panel turning to mobile phone charging, car charging retrofit, driving recorder power supply, household power supply, intelligent plugging transformation, fast charging adapter, etc.
Rank No. #10
AEDIKO 20pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell
- 1S BMS:Charger Voltage:4.2V; Working Current:4A;High-Accuracy Voltage Detection Circuit, Fine Workmanship and Reliable Quality, Effective Life Greater Than 50000 hours
- Protection: Over-Discharge Protection, Overcurrent Protection, Overcharge Protection, Short Circuit Protection
- Low Current: MOS Transistor Can Control the Battery Charge and Discharge, Low Standby Current Consumption
- Diagram Wiring: B+: Connect to Battery Positive; B-: Connect to Battery Negative; P+: Connect to Charge / Discharge Positive, P-: Connection Charge / Discharge Negative
- Wide Application:BMS Protection Board Widely Used for Variety of Capacities and Various Shapes 3.7V Llithium Batteries, Massager Battery Pack, LED Light Backup Power Supply, Solar Street Light Battery Pack, Monitor Standby Power Supply, etc.
Last update on 2024-08-27 / Affiliate links / Images from Amazon Product Advertising API
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