We test and review most updated Remote Control Model , including Digital Servo, Brushless Motor, ESC, Lipolymer and so on.

Friday, July 31, 2009

Cree Flashlight


www.bydico.com/cree-flashlights-c-822.html



Feature:- A special design clip for you to hang it on- One button switch with 3-modes: 90 lumens/ 180 lumens / flashing - Using CREE LED to maximizes output and runtime - Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent. - Waterproofing design - Aluminum alloy casing - Aluminum alloy reflector- Using two CR123A Lithium only
Specification:- Lumens: 90 - 180 lm- Watt: 3 Watt- Length: 139mm- Weight: 83g- Model of Battery required: 2 x CR123A

Wednesday, July 29, 2009

Who is Greatbulk.com

We are GreatBulk.com
GreatBulk.com is an exporter in Hong Kong, China.
We provide a wide range of electronic, remote controlled model products to your store at a great price.
GreatBulk.com is a company dedicated for wholesale customers worldwide. Our main office is located in Hong Kong, China.For payment method, we accept Credit Card, Bank Transfer and PAYPAL. We ship worldwide by using EMS (Express Mail Service), Fedex, UPS, DHL and TNT.
For any wholesale order, please contact us.
Greatbulk.com selling CREE Flashlight in wholesale lot

Thursday, July 23, 2009

Review on Swanghobby 22.2v 2600mAh 25C Li-Polymer Battery

Swanghobby.com reviews on Swanghobby 22.2v 2600mAh 25C Li-Polymer Battery.






I bought this battery for my Trex 500 ESP, 1st order never arrive - but then Swanghobby send another same type to replace the missing one for free. This is great battery with reasonable price - after about 30 times usage - still show the great performance in ballance as shown in image : only cell#3 showed 4.19V from last ballance.Great!




you can buy this Swanghobby 22.2v 2600mAh 25C Li-Polymer Battery at Remote Control Model Free Shipping Shop



Specification






Specification










-


Voltage:

22.2v









- mAh: 2600mAh







- Discharge Rate: 25C







- Burst Rate: 30C







- Dimensions: 112 x 35 x 49 mm







- Net Weight: 422g

Tuesday, July 21, 2009

Where to buy Cree LED flashlight



Feature:- A special design clip for you to hang it on- One button switch with 3-modes: 90 lumens/ 180 lumens / flashing - Using CREE LED to maximizes output and runtime - Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent. - Waterproofing design - Aluminum alloy casing - Aluminum alloy reflector- Using two CR123A Lithium only
Specification:- Lumens: 90 - 180 lm- Watt: 3 Watt- Length: 139mm- Weight: 83g- Model of Battery required: 2 x CR123A

A Cree LED flashlight (also called a torch outside North America) is a portable electric spotlight which emits light from a small incandescent lightbulb, or from one or more light-emitting diodes (LEDs). Incandescent light bulb designs usually feature the light source mounted in a housing which contains a parabolic reflector, a clear protective lens, a power source (typically electric batteries), and an electric power switch.
While most flashlights are intended to be held in the hand, there are also helmet-mounted flashlights designed for miners and campers as well as battery powered lights for bicycles. Some types of flashlights can be powered by hand-cranked dynamos, electromagnetic induction or recharged by solar power.

You can buy high quality CREE LED Flashlight at bydico.com
Buy it now link: http://www.bydico.com/cree-flashlights-c-822.html

Sunday, July 19, 2009

Review on HOBBYWING eZRun 8.5T/3650 4000Kv Sensorless Brushless Motor + 60A-SD ESC + LED Card

Swanghobby.com reviews on HOBBYWING eZRun 8.5T/3650 4000Kv Sensorless
Brushless Motor + 60A-SD ESC + LED Card
.






Very good and VERY fast combo. Programming is very easy.




you can buy this HOBBYWING eZRun 8.5T/3650 4000Kv Sensorless
Brushless Motor + 60A-SD ESC + LED Card
at Remote Control Model Free Shipping Shop



Specification






"eZRun" series brushless system is budget-friendly, it is special designed for 1/10 and 1/12 scale EP ON-ROAD car, and it is most suitable for the following applications:


1) R/C enthusiasts to upgrade to brushless and experience incredible power and starting torque, minimal maintenace and longer runtimes;


2) "RTR" (Ready To Run) applications for manufacturers;


3) Club race for stock equipments (Same controllers and/or same motors) ;





The Combo includes the following items:





60A-SL brushless ESC: 1pcs


8.5T sensorless brushless motor: 1pcs


Program card for car ESC: 1pcs


Cooling fan: 1pcs





Specification of The ESC








Output: Continuous current 60A, burst current 380A.


Input: 4-9 cells NiMh/NiCd or 2-3 cells LiPo. Note1


BEC Output: 6V/1.5A.


Resistance: 0.00075 Ohm.


Motor Supported: Sensorless Brushless Motor


Suitable Brushless Motor: 5.5T and > 5.5T


Suitable Car: 1/10 on-road or off-road cars / trucks for normal race or sportful race.


Size: 31.5mm(L) * 27.5mm(W) * 24mm(H).


Weight: 32g(Without wires)





Note1:


For 4-6 Cell Ni-xx or 2 cell lithium battery: You need not change the fan coming with the ESC;


For 7-9 Cell Ni-xx or 3 cell lithium battery: You must change the fan because it cannot work with such a high voltage, so please choose a high voltage fan or supply the fan from the receiver (+6V)








Note2: The values of "T" number is tested under the following conditions:


a) The input is a 6 cells Ni-xx battery;


b) The ESC is equipped with a cooling fan.


Features





Compatible with all sonsorless brushless motor.


Use top quality electronic components to enhance the current endurance ability of the ESC.


Excellent start-up, acceleration and linearity features.


With 2 running modes (Racing mode and Forward/Backward mode).


With 4 steps of maximum reverse force adjustment.


Proportional ABS brake function with 4 steps of maximum brake force adjustment, 8 steps of drag-brake force adjustment and 4 steps of initial brake force adjustment.


With 4 start modes (Also called "Punch" ) from "Soft" to "Very aggressive".


Multiple protection features: Low voltage cut-off protection for lithium or nickel battery / Over-heat protection / Throttle signal loss protection / Motor blocked protection.


With 8 steps of timing adjustment to get the best compatibility with various of motors.


Easily program with only one button and compatible with pocket-sized program card.





Motor uses top quality materials:


Aluminium shell (case)


High quality magnets


Copper wires of high temperature endurance


Good quality bearings.


Dustproof design for the motor.




Review on SWANGHOBBY 850Kv D3648N High Watt Brushless Motor + Propeller Adaptor

Swanghobby.com reviews on SWANGHOBBY 850Kv D3648N High Watt Brushless Motor + Propeller Adaptor.






I have two of these motors and find them powerfull and cool running,at the moment one of the motors is fitted to a plane that had a .40ic engine and is powerfull enough to do all the same aerobatics,

I am now building a larger aerobatic model and intend to make it a twin again useing these motors.




you can buy this SWANGHOBBY 850Kv D3648N High Watt Brushless Motor + Propeller Adaptor at Remote Control Model Free Shipping Shop



Specification
Advise configure and usage limit):

1. Advise application power 1000W

2. Momentary power 1200Wmax

3. Propose configure for this motor:

a. Battery---2500mAh 20C 4Slipo b. ESC---60A c. propeller--- APC12X7



4. Don′t let the exiguous carbon steel metal to close with motor when fixing, it breathe inside motor by magnetic field then cause the motor to set up or cause the winding short!



5. Please use the stainless steel screws when fix the motor, and the length of the screw don′t higher than the pedestal, lest to breach the wire!



6. Motor temperature should not exceed 90℃



Configuration characteristic:

1. Magnet---N38SH

2. Silicon steel---0.35(mm)

3. Bearing---NMB

4. shaft--- Carbon steel

5. Guide wind system--- Free cooling

6. Insulated material--- Somar Epoxy (Japan)



Accessories: Front prop holder、Rear prop holder、Cross motor mount



Reliability Testing:

1. Test Condition

a. Voltage---14.8(V)

b. Propeller--- APC12X7

c. Load current---35(A)

d. Net Thrust---1800(g)

e. Room temperature---25(℃)

f. Run mode---5 Minute ON, 2 Minute OFF

g. Shaft direction gap---0.05-0.2mm

h. Noise no load---30db



2. After testing 100 times circle

a. Net thrust---1750(g)

b. Current---36.5(A)

c. Temperature rising---85(℃)

d. Shaft direction gap---0.1-0.2mm

f. Run mode---5 Minute ON, 2 Minute OFF

Review on Flyermate Broad AMP Cell 18.5v 4500mAh 20C Li-Polymer Battery

Swanghobby.com reviews on Flyermate Broad AMP Cell 18.5v 4500mAh 20C Li-Polymer Battery.






Weigth with Cable 550 g.
you can buy this Flyermate Broad AMP Cell 18.5v 4500mAh 20C Li-Polymer Battery at Remote Control Model Free Shipping Shop



Specification



Flyermate

18.5v

4500mAh 20C Broad AMP Cell Li-Polymer

Battery. Flyermate Broad AMP Cell Lipolymer Battery assemblies with SWANG high quality lipo cell. This allows higher output of AMP than traditional lipo cell.





Voltage:


18.5v



5

S1P


mAh: 4500


Discharge Rate: 20C


Burst Discharge: 25C


Size: 1


40

mm x 4

3

mm x

40

mm


Net Weight: 4


8

0g


Cell: High AMP Out Broad AMP Cell




Review on SWANGHOBBY 7.4v 4000mAh 25C Li-Polymer Battery (Plastic Case)

Swanghobby.com reviews on SWANGHOBBY 7.4v 4000mAh 25C Li-Polymer Battery (Plastic Case).






Very nice sealed lipo. the only thng that was missing, were the labels. Positive is the Deans connector. Shipping to the Netherlands went very well.








you can buy this SWANGHOBBY 7.4v 4000mAh 25C Li-Polymer Battery (Plastic Case) at Remote Control Model Free Shipping Shop



Specification
mAh: 4000

Discharge: 25C

Size: 138 x 48 x 21mm

Weight: 242grams

With a Plastic Case for protection

Review on HOBBYWING eZRun 32T/3650-M 1200Kv Sensorless Brushless Motor + 35A-RC Electric Speed Controller + LED Card

Swanghobby.com reviews on HOBBYWING eZRun 32T/3650-M 1200Kv Sensorless Brushless Motor + 35A-RC Electric Speed Controller + LED Card.






I love brushless anything.

So the chance to have a brushless motor in my crawler at an excellent price was too good to pass up!!! US$86 posted is excellent as far as i'm concerned.



Installation in my AX10 was as easy as can be, the most time consuming part was waiting for my soldering iron to get hot enough to put deans connectors on...



The ESC fits in any small space, and the motor is standard 540 size.



Power it up and it works just like it should, enough torque to push my Scorpion over obstacles i put in its way. And programmable with the supplies card.



Easy peasy. Worth the money:)




you can buy this HOBBYWING eZRun 32T/3650-M 1200Kv Sensorless Brushless Motor + 35A-RC Electric Speed Controller + LED Card at Remote Control Model Free Shipping Shop



Specification






Feature


of


32T/3650-M 1200Kv Sensorless Brushless Motor










-

Top quality materials









-

Aluminum shell (case)




-

High quality magnets




-

Copper wires of high temperature endurance




-

Good quality bearings




-

Dustproof design




-

Low price but good quality, easy to use


















Specification


of



32T/3650-M 1200Kv Sensorless Brushless Motor










- Rpm(Kv): 1200







- Working Voltage: 12v







- Battery Type:

NiCd/ Nimh/ Li-Polymer

Battery










- Shaft Length: 15mm







- Shaft Diameter: 3.17mm







- Motor Diameter: 35.8mm







- Total Length: 65mm







- Net Weight: 165g




















Feature of


35A-RC E


lectric


S


peed


C


ontroller







-

Special program for rock crawler









-

Use top quality electronic components to enhance the current endurance ability of the ESC







-

Excellent start-up, acceleration and linearity features









-

With 9 start modes (Also called "Punch" ) from "Soft" to "Very aggressive"









-

Multiple protection features: Low voltage cut-off protection for lithium or nickel battery / Over-heat protection / Throttle signal loss protection / Motor blocked protection









-

Easily program with only one button and compatible with pocket-sized program card




-

Motor uses top quality materials









-

Aluminum shell (case)









-

High quality magnets




-

Copper wires of high temperature endurance









-

Good quality bearings




-

Dustproof design for the motor


















Specification


of


35A-RC E


lectric


S


peed


C


ontroller







- Continuous Current:

35A









- Burst Current:

190A









- Suitable Motor:

Sensorless Brushless motor

,

>=32T









- Suitable Scale:

Rock Crawler









- Input Voltage:

4-9 cells NiMH/NiCd or 2-3 cells LiPo.









- BEC Output:

6V/1.5A









-

Resistance: 0.0015 Ohm









- Dimensions:

31.5

x



27.5


x

24mm









- Net Weight:

30g(Without wires)


















Feature of


LED Card










This program card is used to set the programmable parameters of brushless ESC, it has a friendly user interface, so you can set the programmable parameters very easily. It is pocket-sized, so you can bring it to the racing or flying field conveniently.

















This program card is suitable for the following ESCs:







1. XERUN Series Car ESC (Version 2.0)







2. EZRUN Series

Car ESC (Version 2.0)







3. PLATINUM Series Helicopter/Aircraft ESC







4. SEAKING Series Boat ESC




















Specification


of LED Card







- Input Voltage: 4.8-6V (If the ESC does not have a built-in BEC, you must use an additional battery pack to supply the program card)









- Size: 88 x 58 x 14mm







- Weight: 40g.




















Package Content







-

32T/3650-M 1200Kv Sensorless Brushless Motor

x 1







-

35A-RC E

lectric

S

peed

C

ontroller



x 1








-

LED Card

x 1

Wednesday, July 15, 2009

Li-Polymer Battery Advantage

The Li-polymer differentiates itself from other battery systems in the type of electrolyte used. The original design, dating back to the 1970s, uses a dry solid polymer electrolyte only. This electrolyte resembles a plastic-like film that does not conduct electricity but allows an exchange of ions (electrically charged atoms or groups of atoms). The polymer electrolyte replaces the traditional porous separator, which is soaked with electrolyte.
The dry polymer design offers simplifications with respect to fabrication, ruggedness, safety and thin-profile geometry. There is no danger of flammability because no liquid or gelled electrolyte is used.
With a cell thickness measuring as little as one millimeter (0.039 inches), equipment designers are left to their own imagination in terms of form, shape and size. It is possible to create designs which form part of a protective housing, are in the shape of a mat that can be rolled up, or are even embedded into a carrying case or piece of clothing. Such innovative batteries are still a few years away, especially for the commercial market.

Unfortunately, the dry Li-polymer suffers from poor conductivity. Internal resistance is too high and cannot deliver the current bursts needed for modern communication devices and spinning up the hard drives of mobile computing equipment. Although heating the cell to 60°C (140°F) and higher increases the conductivity to acceptable levels, this requirement is unsuitable in commercial applications.
Research is continuing to develop a dry solid Li-polymer battery that performs at room temperature. A dry solid Li-polymer version is expected to be commercially available by 2005. It is expected to be very stable; would run 1000 full cycles and would have higher energy densities than today’s Li-ion battery.
In the meantime, some Li-polymers are used as standby batteries in hot climates. One manufacturer has added heating elements that keeps the battery in the conductive temperature range at all times. Such a battery performs well for the application intended because high ambient temperatures do not affect the service life of this battery in the same way it does the VRLA, for example.
To make a small Li-polymer battery conductive, some gelled electrolyte has been added. Most of the commercial Li-polymer batteries used today for mobile phones are a hybrid and contain gelled electrolyte. The correct term for this system is ‘Lithium Ion Polymer’. For promotional reasons, most battery manufacturers mark the battery simply as Li-polymer. Since the hybrid lithium polymer is the only functioning polymer battery for portable use today, we will focus on this chemistry
With gelled electrolyte added, what then is the difference between Li-ion and Li-ion polymer? Although the characteristics and performance of the two systems are very similar, the Li-ion polymer is unique in that it uses a solid electrolyte, replacing the porous separator. The gelled electrolyte is simply added to enhance ion conductivity.
Technical difficulties and delays in volume manufacturing have deferred the introduction of the Li-ion polymer battery. This postponement, as some critics argue, is due to ‘cashing in’ on the Li-ion battery. Manufacturers have invested heavily in research, development and equipment to mass-produce the Li-ion. Now businesses and shareholders want to see a return on their investment.
In addition, the promised superiority of the Li-ion polymer has not yet been realized. No improvements in capacity gains have been achieved — in fact, the capacity is slightly less than that of the standard Li-ion battery. For the present, there is no cost advantage in using the Li-ion polymer battery. The thin profile has, however, compelled mobile phone manufacturers to use this promising technology for their new generation handsets. One of the advantages of the Li-ion polymer, however, is simpler packaging because the electrodes can easily be stacked. Foil packaging, similar to that used in the food industry, is being used. No defined norm in cell size has been established by the industry.
Advantages and Limitations of Li-ion Polymer Batteries
Advantages
Very low profile — batteries that resemble the profile of a credit card are feasible.
Flexible form factor — manufacturers are not bound by standard cell formats. With high volume, any reasonable size can be produced economically.
Light weight – gelled rather than liquid electrolytes enable simplified packaging, in some cases eliminating the metal shell.
Improved safety — more resistant to overcharge; less chance for electrolyte leakage.
Limitations
Lower energy density and decreased cycle count compared to Li-ion — potential for improvements exist.

Sponsor: www.swanghobby.com
Free Shipping of Li-Polymer Battery

Hobbywing Super Combo

Super Combo of Hobbywing eZrun
We have a super combo for 1/10 RC Car lovers.
Hobbywing eZrun 9T and 13T with a 35A ESC, PLUS a Flyermate Carbon Fiber Case Li-Polymer Battery.

Here is the detailHOBBYWING eZRun 13T Brushless Motor + 35A-SL ESC + Flyermate Carbon Fiber Case 7.4v 5200mAh 25C Li-Polymer Battery Combo

The two combo, 9T and 13T available at www.swanghobby.com and with a 10% off discount + Free Shipping Tag.

For all hobbywing product, please check at http://www.swanghobby.com/hobbywing-m-3.html
Features of HOBBYWING eZRun Motor and ESC Combo- Specially designed for RC car, with excellent start-up, acceleration and linearity features.- Compatible with sensorless brushless motor.- Use top quality electronic components to enhance the current endurance ability of the ESC.- 2 running modes (Racing mode and Forward/Backward mode)- 4 steps of maximum reverse force adjustment.- Proportional ABS brake function with 4 steps of maximum brake force adjustment, 8 steps of drag-brake force adjustment and 4 steps of initial brake force adjustment.- 4 start modes (Also called Punch) from soft to very aggressive.- Multiple protection features: Low voltage cut-off protection for lithium or nickel battery / Over-heat protection / Throttle signal loss protection / Motor blocked protection.- 8 steps of timing adjustment.- Waterproof and dustproof.- Easily program with only one button and compatible with pocket-sized program card.
Specification of HOBBYWING eZRun Motor and ESC Combo- Cont. Current: 35A- Burst Current: 190A- Resistance: 0.0015 ohm- Suitable Car: >13T- Kv: 3000T- Battery: 4-9 Cell Ni-xx (NiMh or NiCd) or 2-3 Cell Li-Po- BEC Output: 6V / 1.5A- Motor Type: Sensorless Brushless Motor- Dimension: 31.5mm x 27.5mm x 24mm (The height of fan is not included)- Weight: 30g (without wires)
Specification of Flyermate Carbon Fiber Case 7.4v 5200mAh 25C Li-Polymer Battery Combo- Voltage: 7.4v - mAh: 5200mAh - Discharge Rate: 25C - Burst Rate: 50C - Cell: Broad Amp Cell- Dimensions: 137 x 47 x 25mm - Net Weight: 290g

Friday, July 3, 2009

The application of Li-Polymer Battery

A compelling advantage of Li-poly cells is that manufacturers can shape the battery almost however they please, which can be important to mobile phone manufacturers constantly working on smaller, thinner, and lighter phones.

3-Cell LiPo for RC-models

Swanghobby.com is selling a wide range of Li-Polymer Battery for Radio Controlled model.

Li-poly batteries are also gaining favor in the world of Radio-controlled aircraft as well as Radio-controlled cars, where the advantages of both lower weight and greatly increased run times can be sufficient justification for the price. Some airsoft gun owners have switched to LiPo batteries due to the above reasons and the increased rate of fire they provide. However, lithium polymer-specific chargers are required to avoid fire and explosion. Explosions can also occur if the battery is short-circuited, as tremendous current passes through the cell in an instant. Radio-control enthusiasts take special precautions to ensure their battery leads are properly connected and insulated. Furthermore fires can occur if the cell or pack is punctured. Radio-controlled car batteries are often protected by durable plastic cases to prevent puncture. Specially designed electronic motor speed controls are used to prevent excessive discharge and subsequent battery damage. This is achieved using a low voltage cutoff (LVC) setting that is adjusted to maintain cell voltage greater than (typically) 3 V per cell.

Li-poly batteries are also gaining ground in PDAs and laptop computers, such as Apple's MacBook, MacBook Pro, and Macbook Air, Amazon's Kindle, Lenovo's Thinkpad X300 and Ultrabay Batteries, the OQO series of palmtops, the HP Mini and Dell products featuring D-bay batteries. They can be found in small digital music devices such as iPods and other MP3 players as well as gaming equipment like Sony's Playstation 3 wireless controllers[2]. They are desirable in applications where small form factors and energy density outweigh cost considerations.

Sponsor: http://www.swanghobby.com/ The free shipping Li-Polymer Battery

Where to buy li-polymer battery?

There are many place to buy li-polymer battery, but swanghobby.com offer a wide range of li-polymer battery for FREE SHIPPING.

Swanghobby.com has 7.4v , 11.1v 14.8v, 18.4v and 22.2v Li-Polymer Battery, all of them are for Remote controlled model such as RC Helicopter, RC Airplane and RC Car.

http://www.swanghobby.com/li-polymer-battery-and-charger-c-201.html

Li-Polymer Battery

Wednesday, July 1, 2009

Review on MAXPRO 2 Cells Li-Polymer Battery Monitor

Swanghobby.com reviews on MAXPRO 2 Cells Li-Polymer Battery Monitor.






Very good accessory to put on my Truggy 1/18 when I use lipo in place of NiMh. With this, I can monitor the cell voltage to prevent Lipo fall below 6.4V. The high intensity Leds are visible when the sun shine.




you can buy this MAXPRO 2 Cells Li-Polymer Battery Monitor at Remote Control Model Free Shipping Shop



Specification
Specification

-Blue light shines: 7.4 up

-Blue light flashes: 7.4V ~ 6.8V

-Red light shines: 6.8V ~ 6.6V

-Red light flashes & Beep: below 6.6V

-Product weight: 3grams ONLY!

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