SKYRC eFUEL 30A Switching Power Supply (High Loading)
[SK-200013-04]
New Version 100-240V AC Input with 12-18V DC Output! Design for all balance chargers, high capacity and loading.
Good to use with charger for 3S and 6S+ Li-Po batteries for 450-700 class helicopters. e.g. 22.2V 2000-5500mAh+
User Manual: eFUEL 30A Power Supply Instruction Manual.pdf
Your eFUEL switching DC Power Supply is designed to use household AC power source to power equipments that required DC power. The eFUEL converts standard household power 100-240V AC to 12-18V DC power and can supply up to 30 amperes of continuous power.
FEATURES
* Two DC power outputs, up to 30 amperes
* Output voltage adjustable 12-18V
* Large LCD indicates voltage and current amperes output
* Two USB ports, 5 volts, 1000mA total for MP3 player, mobile phone and digital cameras
* Smart cooling fan
* Over temperature protection
* Over loading protection
* Short circuit protection
IMPORTANT SAFETY INSTRUCTIONS
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Do not use the power supply near water (for example, a bathtub, washbowl, kitchen sink, laundry tub, wet basement, or swimming pool).
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Do not place the power supply on an unstable cart, stand or table. If the power supply falls, it could injure a person or cause serious damage to the power supply.
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Do not overload power outlets or extension cords. An overload can result in fire or electric shock.
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Do not disassemble this unit; take it to a qualified service technician when service or repair is required.Improper reassembly may result in a risk of electric shock or fire.
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Do not use an attachment not recommended, this could result in a risk of fire , electric shock, or injury to persons.
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Never push any object into the slot in the power supply. It could touch dangerous voltage points or short out parts resulting in a fire or electrical shock.
SPECIFICATIONS:
Voltage…………………………………………………………………………………………………100-240V AC
Input AC Frequency…………………………………………………………………………………………50-60Hz
Output Voltage……………………………………………………………………………………12-18V DC±0.5V
Output Current………………………………………………………………………………………………30A±1A
Current Overload Protection…………………………………………………………………………≤31A 500MS
Input Fuse…………………………………………………………………………………………… 10A Fuse
LCD Display………………………………………………………………………………Voltage Precision ±0.3V
Current Precision ±0.3A
Output Voltage Ripple………………………………………………………………………………………< 150mV
Power Efficiency………………………………………………………………………………………………89%
Power Factor……………………………………………………………………………………………………> 0.98
Over Temperature Protection………………………………………………………………………………<65℃
Cooling Method…………………………………………………………………………………………Cooling Fan
Operating Temperature………………………………………………………………………………………0-40℃
Operating Humidity……………………………………………………………………………………………0-90%
Dimensions (L*W*H)……………………………………………………………………………218x139x59.5mm
Net weight………………………………………………………………………………………………………1.62kg
Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.
Q&A:
How to choose the correct power supply / ac adapter?
- to charge a 3S (11.1V) Li-Po with 1A current, the charger output is 3S x 1A = 3A. Then a power supply of 5A is required.
- to charge a 6S (22.2V) Li-Po with 2A current, the charger output is 6S x 2A =12A. Then a power supply of 20A is required.
- therefore a stronger power supply always allow you to charge the batteries faster!
How to choose the correct charger?
- if the maximum power of your charger is 100W, P= V x I:
- e.g. the full voltage of a 3S Li-Po is 12.6V (4.2V x 3S). If your charging rate is 3.5A, then charger power required is 12.6V x 3.5A = 44.10W
- e.g. the full voltage of a 6S Li-Po is 25.2V (4.2V x 6S). If your charging rate is 4A, then charger power required is 25.2V x 4A = 100.80W (failed!! over charger limit 100W, please reduce to 3.5A)
- therefore if you want to charge the battery faster at higher current ~5A, you will need to get a more powerful charger likes 200W+.
- always use 10% less than the maximum limit to avoid overload & overheat the charger, this can extend the life for your chargers too.
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