SPS E305 1 30V 5A 10A Mini Variable DC Power Supply
SPS E305 VIDEO
SPS E305 VIDEO">
SPS E305 3 30V 5A 10A Mini Variable DC Power Supply
SPS E305 4 High precision LED 3-digit display,accurate display of voltage to 0.1V and current to 0.01A.
SPS E305 5 DC_Power_Supply with Excellent Safety Performance
SPS E305 6 Mini Portable ,Lightweight body design,easy to carry.
SPS E305 7 Volltage and Current Regulation Method
SPS E305 9 Small body,high power
SPS E305 8 Variable_DC_Power_Supply for Laboratory,Powering the Battery ,Handmade DIY,Phone Repair
SPS E3010 1
SPS E305 1 30V 5A 10A Mini Variable DC Power Supply
SPS E305 VIDEO
SPS E305 3 30V 5A 10A Mini Variable DC Power Supply
SPS E305 4 High precision LED 3-digit display,accurate display of voltage to 0.1V and current to 0.01A.
SPS E305 5 DC_Power_Supply with Excellent Safety Performance
SPS E305 6 Mini Portable ,Lightweight body design,easy to carry.
SPS E305 7 Volltage and Current Regulation Method
SPS E305 9 Small body,high power
SPS E305 8 Variable_DC_Power_Supply for Laboratory,Powering the Battery ,Handmade DIY,Phone Repair
SPS E3010 1

NICE-POWER 30V 5A 10A Mini Variable DC Power Supply

$59.99
$59.99
Please hurry! Only 10 left in stock
Input Voltage: AC110V(±10%)
Model: SPS-E3010 30V 10A
Subtotal: $59.99
10 customers are viewing this product

Storewide Discounts

Spend $200+ for 5% OFF | $400+ for 8% OFF | $800+ for 10% OFF. Discounts will be automatically deducted at checkout.

Price Guarantee

We offer a 30-day price guarantee: if the price of your purchased item drops within 30 days, we will refund the price difference.

Free Returns

30-Day return and refund guarantee refer to our refund policy.
SPS E3010 1

NICE-POWER 30V 5A 10A Mini Variable DC Power Supply

$59.99
SPS E305 1 30V 5A 10A Mini Variable DC Power Supply
SPS E305 3 30V 5A 10A Mini Variable DC Power Supply
SPS E305 4 High precision LED 3-digit display,accurate display of voltage to 0.1V and current to 0.01A.
SPS E305 5 DC_Power_Supply with Excellent Safety Performance
SPS E305 6 Mini Portable ,Lightweight body design,easy to carry.
SPS E305 7 Volltage and Current Regulation Method
SPS E305 9 Small body,high power
SPS E305 8 Variable_DC_Power_Supply for Laboratory,Powering the Battery ,Handmade DIY,Phone Repair
SPS E3010 1

NICE-POWER 30V 5A 10A Mini Variable DC Power Supply

$59.99
Input Voltage: AC110V(±10%)
Model: SPS-E3010 30V 10A
Product Details

Download English Manual (PDF)

Click the link above to get the full user guide for this product.

Overview:

The  30V 5A 10A Mini DC Power Supply combines compact portability with powerful and precise performance, making it an ideal solution for electronics engineers, DIY enthusiasts, repair technicians, laboratories, and industrial users. Designed with a high-precision encoder adjustment system, intelligent cooling, and multiple safety protections, this adjustable bench DC power supply delivers stable and reliable DC output for a wide range of professional and hobby applications.

With support for 100–240V worldwide input voltage, this compact regulated DC power supply is perfect for both workshop and field operatio

Key Features:

  • Compact Yet Powerful

    Designed with a compact body and lightweight construction while maintaining high power density. Weighing only 1.54 lbs (0.7 kg), this mini DC power supply is lighter than most laptops and saves valuable workspace.

    Perfect for:

    • Portable workstations
    • Mobile repair services
    • Outdoor operations
    • Space-saving laboratory setups

  • Precision Power Adjustment

    Automatically switches between Constant Voltage (CV) and Constant Current (CC) modes for accurate and stable control.

    • Precise voltage, current, and power regulation
    • Stable output for sensitive electronics
    • Ideal for testing, troubleshooting, and development work

  • Upgraded High-Precision Encoder Knob

    Unlike traditional coarse adjustment potentiometers, the upgraded encoder knob system allows true digital-style precision setting.

    Simply:

    1. Press the voltage or current knob to select a digit
    2. Rotate the encoder to adjust values from 0–9
    3. Precisely configure each digit independently

    Benefits include:

    • Faster parameter setup
    • More accurate voltage/current adjustment
    • Improved workflow efficiency
    • Easier operation for professionals and beginners alike.

  • High-Resolution LED Display

    Features a precise 3-digit backlit LED display with:

    • 0.1V voltage resolution
    • 0.01A current resolution
    • Clear visibility in low-light environments

    Adjust output smoothly across:

    • 0–30V
    • 0–10A

    Perfect for precision electronics work and laboratory applications.

  • Intelligent Cooling System

    Built-in temperature-controlled cooling fan ensures efficient heat dissipation while maintaining quiet operation.

    Advantages include:

    • Low operating noise
    • Improved reliability
    • Extended service life
    • Stable continuous performance

Wide Range of Applications

This compact adjustable DC power supply is ideal for:

Electronics Repair

Used for smartphone repair, motherboard diagnostics, circuit troubleshooting, and device maintenance.

Battery Charging

Supports safe charging for:

  • LiFePO4 batteries
  • Lead-acid batteries
  • DIY battery projects

Laboratory & Research

Reliable power source for engineering labs, university research, and electronic experiments.

PCB & Circuit Testing

Provides stable voltage for PCB debugging, circuit development, and component verification.

Electrolysis & Electroplating

Suitable for electrolysis experiments, electroplating processes, and brush plating applications.

Product Aging & Burn-In Testing

Ideal for electronic component aging tests and long-duration reliability testing.

DIY Electronics Projects

Perfect for Arduino, Raspberry Pi, robotics, and maker projects.

Package Includes

Portable and easy to carry between workspace, laboratory, and field environments.

Input Voltage Notice

This adjustable DC power supply supports a wide input voltage range of 100–240V AC and is compatible with both 110V and 230V power systems worldwide.

Specifications

Parameter Sub-Parameter SPS-E305 SPS-E3010
Rated Value (0℃~40℃) Voltage 0-30V 0-30V
Current 0-5A 0-10A
Power 150W 150W
Load Regulation Voltage ≤0.3%+10 mV (All Models)
Current ≤0.1%+2.5 mA (All Models)
Line Regulation Voltage ≤0.01%+2.5 mV (All Models)
Current ≤0.1%+2.5 mA (All Models)
Setting Resolution Voltage 10mV (All Models)
Current 1mA (All Models)
Readback Resolution Voltage 10mV (All Models)
Current 1mA (All Models)
Setting Accuracy Voltage ≤0.05%+10mV (All Models)
Current ≤0.01%+10mA (All Models)
Readback Accuracy Voltage ≤0.05%+10mV (All Models)
Current ≤0.01%+10mA (All Models)
Ripple (20Hz~20MHz) Voltage ≤60 mVp-p

≤10 mVrms		 ≤100 mVp-p

≤15 mVrms
Current ≤10 mArms ≤15 mArms
Rise Time (No Load) Time ≤200mS (All Models)
Rise Time (Full Load) Time ≤300mS (All Models)
Fall Time (No Load) Time ≤15S ≤20S
Fall Time (Full Load) Time ≤300mS (All Models)
Dynamic Response Time ≤200mS (All Models)
Efficiency - ≥85% (All Models)
Input Voltage/Current - 110V/5A 220V/3.15A (All Models)
Size/Net Weight - SPS-E: about 18.5*10*7.8cm, weight:0.7KG
Package Size/Weight - Single unit: 231911cm, weight:1.1KG (12pcs/Carton) (All Models)
Warranty

Warranty

30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from kuaiquinstrument.com), lifetime technique support by KUAIQU.

Please feel free to reach us with any concerns:

Email: kuaiquinstrument@163.com

We strive to reply to you within 24 hours.

Shenzhen Kuaiqu Electronic Co., Ltd. was founded in 2014 and is located in Shenzhen City, Guangdong Province. It is a scientific and technological enterprise integrating,production and sales. Specializing in the production of DC stabilized power supply, variable frequency power supply, switching power supply, program-controlled power supply and other 100 kinds of measuring teaching instruments and industrial special equipment.

We are committed to delivering premium products and exceptional customer service, striving to be your most reliable and intelligent assistant.

Price Guarantee

At KUAIQU, we are committed to providing our customers with the best value for their purchases. To ensure you always get the best price, we offer a 30-day price guarantee on all products purchased directly from kuaiquinstrument.com. This policy aims to give you confidence and peace of mind when shopping with us.

What is the 30-Day Price Guarantee?

Our 30-day price guarantee means that if you purchase a product from kuaiquinstrument.com and the price of that product drops within 30 days of your purchase date, you are eligible for a refund of the price difference of the products. (Prices are based on USD. No refunds will be given for price changes in other currencies due to exchange rate fluctuations.)

How Does the Price Guarantee Apply?

  • Eligibility: The price guarantee applies only to purchases made on kuaiquinstrument.com. Products purchased from other retailers or third-party sellers are not eligible.
  • Timeframe: The price drop must occur within 30 days of your original purchase date.
  • Product Match: The price guarantee applies to the same product (identical model, specifications, and condition).

How to Apply for a Price Difference Refund

If you notice that the price of a product you purchased from kuaiquinstrument.com has dropped within 30 days, follow these steps to apply for a refund of the price difference:

  • Documentation: Prepare your order number and proof of the price drop (such as a screenshot and link to the product page showing the reduced price).
  • Contact Us: Reach out to our customer support team at kuaiquinstrument@163.com. Include your order number, proof of the price drop, and a brief explanation of your request.
  • Verification: Our team will verify the price drop and your purchase details.
  • Refund Process: Once verified, we will process the refund for the price difference to your original method of payment. It typically takes 1-3 business days for you to receive the refund.

At KUAIQU, we strive to provide our customers with high-quality products and exceptional customer service. Our 30-day price guarantee is just one of the ways we ensure you get the best value for your investment. Shop confidently with KUAIQU, knowing that you are always getting the best deal available.

Thank you for choosing KUAIQU. If you have any questions or need further assistance, please do not hesitate to contact our customer support team at kuaiquinstrument@163.com.

FAQs

Still confused about our DC regulated power supplies after checking the FAQs? Please contact our customer service, we are ready to solve all your problems.

Use overlay text to give your customers insight into your brand. Select image and text that relates to your style and story.

Our customer service can walk you through all settings. You can also watch full operation tutorials on our YouTube channel, including OVP, OCP, memory storage function and other operation guides. Our official blog also has lots of technical articles for reference.

Partial KUAIQU power supplies support program control with USB, RS232, RS485 interfaces, based on Modbus protocol. Remote control can be realized via our self-developed PC software. If you need this function and confirm interface configuration of a model, email us: kuaiquinstrument@163.com..

The banana plug adopts cross-slot design. Pry the metal slot slightly open with a screwdriver to make the plug clamp terminals tighter and safer..

All KUAIQU DC power supplies support basic battery charging. For dedicated long-term charging, our patented battery-charging model with independent BATTERY key and full charging protection is highly recommended.

A certain amount of ripple is normal for all switching DC power supplies. Ripple is a small residual AC component superimposed on the DC output and is an inherent characteristic of switching power supply technology. The typical ripple voltage of our power supplies ranges from approximately 100 mV to 300 mV, which is suitable for most general-purpose testing, maintenance, and electronic applications.

A: Minor fluctuations in the last displayed digit are normal and are typically caused by temperature drift within the electronic components. As ambient and internal temperatures change, small variations in the readings may occur. This falls within normal industry tolerances and does not affect the power supply's suitability for everyday electronics work, home repairs, DIY projects, or general testing. For applications requiring extremely high precision and ultra-stable output, a linear DC regulated power supply may be more appropriate.

This is normal and does not indicate a malfunction. The internal capacitors continue to hold a small amount of stored energy after the power is switched off. As the capacitors discharge, the display will gradually turn off, typically within 5–8 seconds.

In CV mode, the power supply maintains a fixed output voltage while the current varies according to the load. In CC mode, the power supply limits the output current to a preset value, automatically reducing voltage if necessary. CC mode is especially useful for battery charging, LED testing, and protecting electronic components.

This is normal behavior. The power supply contains internal filter capacitors that store electrical energy. When the output voltage is reduced, these capacitors require a few seconds to discharge, causing the displayed voltage to decrease more gradually than when increasing the voltage. Q: Why does t

Contact Support

You May Also Like

Example product title
From $49.99
From $49.99
Example product title
From $49.99
From $49.99
Example product title
From $49.99
From $49.99
Example product title
From $49.99
From $49.99
Example product title
From $49.99
From $49.99
Example product title
From $49.99
From $49.99
Example product title
From $49.99
From $49.99
Example product title
From $49.99
From $49.99
Example product title
From $49.99
From $49.99
Example product title
From $49.99
From $49.99

Recently Viewed Products

FAQs

If you have any other questions or technical doubts about our DC power supplies, please feel free to contact us anytime. Our professional support team will reply to you as soon as possible.

Output ripple refers to small residual AC fluctuations present in the DC output. Lower ripple levels provide cleaner power, which is important when testing sensitive electronics, RF circuits, audio equipment, and precision instruments.

Yes, all DC regulated power supplies manufactured by KUAIQU support battery charging. However, if you mainly intend to charge batteries, I would highly recommend our patented DC power supply specially designed for battery charging. It comes with an exclusive dedicated BATTERY function key, and built-in specialized charging protection functions to safeguard your batteries during the whole charging process..

This is normal behavior. The power supply contains internal filter capacitors that store electrical energy. When the output voltage is reduced, these capacitors require a few seconds to discharge, causing the displayed voltage to decrease more gradually than when increasing the voltage..

This is normal and does not indicate a malfunction. The internal capacitors continue to hold a small amount of stored energy after the power is switched off. As the capacitors discharge, the display will gradually turn off, typically within 5–8 seconds..

This is a common operation issue for adjustable DC power supplies. Please follow the steps below to solve the voltage adjustment failure: Turn the current adjustment knob clockwise moderately to set the unit to constant voltage (C.V) mode; After confirming the power supply enters CV mode, turn the voltage adjustment knob clockwise, then you can freely adjust the output voltage value..

It is recommended to pre-adjust the voltage to around 5V before operation. This step prevents spark generation when connecting short-circuited loads, which effectively avoids safety accidents and other hidden electrical hazards..

A: Our banana plug adopts cross-slot design. If the plug becomes loose, use a screwdriver to slightly pry open the metal slot, which can make the plug clamp tighter and connect more safely..

Some models of our KUAIQU DC regulated power supplies support programmable control. They are equipped with USB, RS232 or RS485 communication interfaces and adopt the Modbus protocol. You can realize remote control easily by using our self-developed PC software. If you need programmable control but are unsure whether a specific model comes with your required communication interface, please feel free to contact us via email: kuaiquinstrument@163.com.

If you have any confusion about using OVP, OCP and other built-in functions, our professional customer support staff will provide targeted guidance for you. We also upload complete step-by-step tutorial videos on our official YouTube channel. Apart from OVP and OCP over-protection setup, the videos demonstrate memory storage function and all common operation skills. You can visit our channel via https://www.youtube.com/ In addition, our official blog contains a large number of popular science and technical articles about DC power supplies, you can search and browse related content to solve your problems.

In CV mode, the power supply maintains a fixed output voltage while the current varies according to the load. In CC mode, the power supply limits the output current to a preset value, automatically reducing voltage if necessary. CC mode is especially useful for battery charging, LED testing, and protecting electronic components.

Contact Support