9 Best
Variable Voltage Batteries
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Product Highlights- 【features】the variable inverter is made of aluminum alloy with excellent craftsmanship, which can be used stably. it is strong and sturdy, possesses fast heat dissipation, which ensures a long life span. at the same time, it has excellent performance and stable operation.
- 【easy to use】the smart battery boost inverter is well structured, easy to install, safe and practical, and friendly to novices. an ideal replacement for the old and damaged parts. meanwhile, package list: 1 x inverter; 1 x hand press switch.
- 【applications】the battery boost transformer converts low frequency vibrations into electrical energy, increasing output voltage and current. and, the voltage boost converter is widely used for 12v, 20ah or more batteries, pay attention to the battery specification!
- 【excellent performance】the battery boost inverte has a built in upgrade chip. and, the battery booster has 3 high power effect field tubes, with strong and stable power and clear boosting effect.
- 【 warranty】we promises every customer a shopping satisfaction, feel free to us if you have any questions about your purchase. we will give you a professional and detailed reply within 24 hours. click to buy now!
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Product Highlights
- This electricity converter owns power-down stored function and can store 10 groups preset value, besides, it can quickly extract two groups stored value.
- The step down voltage converter has an intelligent long-life ball bearing fan which can turn on automatically when the output current is higher than 0.5a, effectively dissipate heat and provide stable high power output.
- Dc converter is the combination of analog integration and digital control. its adjustable output voltage range is 0-50.00v, step by 0.01v; its adjustable output current range is 0-5.000a, step by 0.001a.
- Our voltage stabilizer is equipped with high quality lcd monitor. through the lcd screen, it is convenient for you to check the preset voltage, input voltage, output voltage, the preset current, output current, output power, etc.
- Please note that if apply the dc variable voltage regulator to charge for battery or connect to capacitive load, you need to connect a diode in series to prevent backflow, otherwise, the module will be damaged.
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Product Highlights
- The multi-screen high-definition high-definition color screen display is clear and intuitive, using a 1.44-inch high-definition color screen lcd display.
- Professional equipment calibration and calibration to ensure crystal production accuracy.
- Input voltage range: 6-36v; input voltage resolution: 0.1v; output voltage range: 0-36v; output voltage resolution: 0.01v.
- The output voltage is adjustable from 0.6-36.00v, and the output current is adjustable from 0-5.000a. small size, high precision, widely used.
- Stable performance. easy to operate. over-voltage protection. over-power protection. over-current protection. output a variety of protections to ensure the safe use of the load.
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Product Highlights
- Analog control: using a mini screwdriver to increase or decrease output voltage by adjusting the potentiometer, clockwise to step up voltage and counterclockwise to step down voltage.
- Wide voltage input of 4.5-40v and output of 1.25-37v but has low power-consumption.
- Non-isolated lm2596 buck converter, dial down volt 36v 30v 24v to 12v 5v 3.7v 3.5v 3.3v 2v.
- With over-temperature and short-circuit protection, hence it is safe to use.
- Easy to make it work and convenient to accurately adjust the output voltage with a mini screwdriver.
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Product Highlights
- Unparalleled conversion efficiency in various environments:empower your solar setup with our boost solar battery charge controller, engineered with a high-efficiency synchronous rectifier circuit structure. not only does this ensure impressive conversion efficiency in low-power charging environments, but it also ensures that every bit of solar energy is harvested and ut...
- Comprehensive protection mechanisms: relish in a worry-free operation with our solar charge controller, which features a multifaceted protective system. with a led display showcasing the voltage and current efficiency of >=95%, our controller also incorporates short circuit protection, over-temperature protection, and under-voltage protection, safeguarding your solar se...
- Expert real-time tracking with mppt technology:navigate optimal energy with our mppt solar battery charge controller, ensuring real-time tracking functionality suitable for solar panels of various voltages. the high-efficiency mppt delivers real-time tracking, guaranteeing you receive maximum power output, even in fluctuating weather conditions.
- Versatile voltage adjustability and robust waterproof design: elevate your solar installations with our adjustable voltage mppt solar charge controller. designed to support both acid and lithium batteries, this controller is not limited to providing safe and efficient charging. furthermore, it is enveloped in a waterproof, dustproof, and shockproof shell to guard agains...
- Diverse applicability for various solar needs:the universality of our battery supplies enhances a wide range of solar applications. from powering solar street light controllers and solar chargers to managing solar electric bicycles and tricycles, as well as energizing solar toy cars, household solar panels, and solar monitoring systems, our mppt solar charge controller ...
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Product Highlights
- [soft start/soft stop support] reduce the impact of inrush current when starting and stopping suddenly, prolong the life of the motor and gear, and enhance the safety of children when upgrading children's electric vehicles;
- [mounting holes] without external mounting positioning accessories, it can be installed directly using screws.
- 【variable speed pedals support】supports variable speed control pedals, and also supports maximum speed settings in this mode to set the maximum safe speed your child needs;
- [max 35a peak current automatic overcurrent protection] when peak current exceeds 35a or continuous current exceeds 20a, the pwm will be automatically reduced to maintain the output continuous current of 20a. when the current is reduced, it will automatically recover. fuse will never need to be replaced;
- 0~100% duty cycle adjustment. 16.23khz frequency. 9-90v input voltage support, have working indication,aluminum alloy shell. stronger and more durable.
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Product Highlights
- 【applications】the battery boost transformer converts low frequency vibrations into electrical energy, increasing output voltage and current. and, the voltage boost converter is widely used for 12v, 20ah or more batteries.
- 【easy to use】the smart battery boost inverter is well structured, easy to install, safe and practical, and friendly to novices. meanwhile, package list: 1 x inverter; 1 x hand press switch.
- 【excellent performance】the battery boost inverte has a built in upgrade chip. and, the battery booster has 12 high power effect field tubes, with strong and stable power and clear boosting effect.
- 【features】the double variable inverter is made of aluminum alloy with excellent craftsmanship, which can be used stably. at the same time, it has excellent performance and stable operation.
- 【 warranty】we promises every customer a shopping satisfaction, feel free to us if you have any questions about your purchase. we will give you a professional and detailed reply within 24 hours. click to buy now!
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Product Highlights
- Non-invasive ac current sensor-- built-in input coil; small and light, easy to install.when you fix the energy meter, you dont need to cut off the power if you use this product.
- Ac current sensor-- widely used for current measurement, monitoring and protection of lighting equipment, ac motors, air compressors, etc.
- Energy voltmeter multimeter-- the diameter of inner hole is 16mm, the accuracy is 0.5 grade, using structure, it can be fixed to the cable directly through nylon ties.
- Current core-- this is a mini split base current ; its the smallest one compared to the similar products (output 100ma).
- Air compresser-- exquisite workmanship, simple structure, easy to install, use, connect and disassemble, bringing you convenience.
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Product Highlights
- 【5v / 2a usb interface】variable power has built-in quick charging protocol identification chip, supporting usb quick charging function, it has a 5 v / 2a output can be quickly charged mobile phones or other devices or used for charging equipment repair, very convenient.
- 【safe & reliable】with a variety of safety protection measures, including grounding wire, leakage protection, thermal protection, voltage overload, power overload, short circuit protection, and the power supply is equipped with intelligent temperature control fan and heat sink, heat dissipation effect is good, can effectively continue to work. extend product life.
- 【high precision encoder knob】jesverty upgraded dc power supply features precise encoder knobs to switch individual numbers and more accurately customize the desired voltage and power supply with accuracy up to 0.01v and 0.001a. the backlit 4-bit led display provides more accurate readings of voltage and current values that are easy to see even in low light conditions.
- 【output enable / disable button】in the process of using the desktop power supply, the output button can prevent us from forgetting to turn off the output and causing load damage. simply press this button to turn the output of the power supply on or off. this makes it easier for you to use the power supply.
- 【compact & light】measuring just 7.09 x 6.10 x 3.35 inches, 2.43lb, the power supply is more flexible and compact than a regular power supply, saving more space on your workbench and ideal for laboratory, school, maintenance, electrolysis, electroplating, brush plating, lamp testing, burn-in testing, battery charging, home diy and more. note: this model works on ac220v 5...
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