ELECTRIC MOTORS & BATTERIES IN MODELS. REVOLUTION

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Simon Harper
5 years ago
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1 ELECTRIC MOTORS & BATTERIES IN MODELS. REVOLUTION

2 ELECTRIC HELICOPTER.

3 BRUSHED MOTOR WAS USED FIRST DESPITE ALTERING TIMING IT NEEDED EXTENSIVE SERVICES AND GOT VERY HOT IN USE.

4 OUTRUNNER BRUSHLESS. TOP OUTER CASE IS IN MOTION

5 MY BRUSHLESS CONTROLLER MICRO TECHNOLOGY. SPECIFICATIONS Part # PHX-80 Price $ Cells w/bec 5-12 Cells w/o BEC 5-20 Continuous 80 amps Surge 120 amps Switching Rate Programmable (11, 22, or 41KHz) Resistance Brake Reversible Low Voltage Cut-off Size Weight (with wires) Ohms Programmable Yes - change any two wires Programmable 1.05 x 2.65 x.45 in. 2.1 oz. (60g) Universal Connector

6 BRUSHLESS OUTRUNNER MOTOR INSTALLED LOADS OF POWER, ONLY GETS WARM AND NOT A SERVICE FOR OVER A YEAR.

7 MY OTHER SCALE MODELS

8 KOK C-3S2P- Deans 11.1 Volt... 4 Ampere Hours capacity!! All cells in this complete pack are specially selected for close matching charge and discharge characteristics. The continuous current rating of this pack is an outstanding 60Amps. size: 245mm x 44mm x 18mm Weight: 382gms Rating: 60 Amps continuous Average Power delivery: 500 Watts!! Yes the average power delivery of these packs is as stated, the pull down on the voltage under load is so good that the pack is averaging 500 watts delivery. These 4 th generation cells are astounding (excl.vat) LITHIUM POLYMER BATTERY. 1/6 TH THE WEIGHT OF NICADS.

9 Safety Notes on Lithium Polymer Batteries Safety in using Polymer cells or assemblies is your first priority. If you do not understand the characteristics of Polymer cells or assemblies ask before buying. Please be sure to read and follow these instructions carefully. Warranty will not be considered if requirements are not followed. Safe Charging Lithium Polymer cells have very strict charging requirements. Always charge Lithium Polymer cells or packs with recommended PCM or great damage may occur. Always use chargers specifically approved for Lithium Polymer cells or packs. Always test your charger to assure it is functioning properly. Always charge your Lithium Polymer cells or packs outdoors and in a fire proof container. Always store Lithium Polymer cells or packs in a fire proof container. Always have sand or dry fire extinguisher handy in the event of fire. Always keep any battery out of the reach of children. Always handle Lithium Polymer cells and packs with great care. Always purchase a factory authorized built pack instead of building your own. Always observe the correct polarity when connecting cells or packs to charger or application. Always seek medical attention if electrolyte gets in your eyes (flush with cold water immediately). Always scrub with soap and water if electrolyte comes in contact with your skin.

10 Never charge Lithium Polymer cells or packs unattended. Never charge Lithium Polymer beyond factory specifications and is strictly prohibited. Never charge Lithium Polymer in your car, home or garage or where other physical damage can occur. Never charge Lithium Polymer while in the application as the hot pack may ignite certain materials. Never charge Lithium Polymer on flammable materials such as wood, foam or plastic. Never extinguish a Lithium Polymer fire with water. Never disassemble a Lithium Polymer cell or pack (see Damaged notes below). Never short circuit Lithium Polymer cells or packs. Never use a Lithium Polymer cell or pack that has been damaged (see Damaged notes below). Never put loose cells with uncovered terminals in your pocket, purse, bag, desk drawer, etc. Never keep cells or packs in temperatures that exceed 60C/140F. Never exceed the factories maximum allowed discharge rates. Never combine different cell sizes or capacities together in the same pack Never unplug Battery from PCM while charging (Unplug charger before disconnecting Battery). Damaged cells or packs In the event your cells or packs were involved in a crash... Totally inspect the cells, wire leads and connections for possible short circuit. If there is any doubt completely cut all wires from the cells and pack. If any cells are dented or deformed do not use the pack again ever. Follow disposal notes below.

11 THIS IS HOW BAD IT CAN BE REPRODUCED FROM R.C. GROUP. This is for all of you guys out there just getting into Micro Helis,like myself, who have heard how dangerous Litho batteries are but never encountered or considered the fire hazards. I just got my first Micro,a Hornet2 about a month ago. I traded a good guy here,and it came with all the necessary equipment to get it flying including a Lithium-Ion charger. I have been working on this heli for about 3 weeks working out the kinks and getting familiar with the heli as a whole. I had a friend help me assemble the pack, 2 Etec 1200 litho cells. I also purchased a 3 cell pack from Deetee as a spare and had been primarily using the 3 cell pack to test fly and such. CONTINUED.

12 Today I used the 2 cell pack...hovered a while until the battery discharged and promptly brought the heli done in the workshop for a recharge. Plugged it in and went and played some PS2 with my son. About 30 minutes later, the smoke detectors went off. As I yelled for my wife to bring all the kids in the basement upstairs, I ran to the workshop and found 3 large fires burning. One where the Hornet used to be, one on a center bench under a Q500 airplane and one directly under 2 helicopters on a plastic shelf. What confused me was I could understand the fire where the Hornet was, I was very worried and confused to see 2 other fires 2 and 6 feet away from the source fire. CONTINUED

13 I ran back upstairs, told my wife to get the kids completely out of the house and got a fire extinguisher. On the way back down I told myself I was only going to give this one serious attempt to put out, I could barely breath and my ego isn't to large where being a dead hero would keep me down there. I hit the 3 fires hard,ran back outside and got some air. Convinced I had the fires out, I went back down, but the smoke was so intense I could get back far enough to the work shop to confirm the fire was out. Dialed 911. Turned out I was right...the fire was out indeed. But what the hell happened???? How did the fire jump from one bench to the other and then another 3 feet to start another fire??? The firefighters were at a loss... CONTINUED

14 Finally the small burn marks in the carpet told the tale..the batteries had exploded. As I sat in the shower after the fire dept left, and just tried to mellow out, it hit me. The battery charger I use has jumpers on it to determine how many cells and what charge rate you want. Please make sure your cell jumper is set properly, mine wasn't and I almost burned down my house because of it. I had the jumper set for a three cell pack and was charging a 2 cell pack. This fire happened in 30 minutes tops and anything flamable within 6 feet started on fire. I'm lucky. The Hornet is completely melted, the airplane is repairable and the other 2 helis are just scorched not to mention all the powered for the extinguisher that covers everything. My house stinks. I'm a mental disaster. BUT,my family is safe, thats all that matters anyway. PICTURES FOLLOW

16 HELICOPTER.

17 RESPECT. THE PICTURES SAY IT ALL. BE CORRECT WITH ALL PROCEEDURES THE LITHIUM BATTERY SYSTEMS GIVES THE BEST ENERGY DENSITY Whatever Next

18 Battery Technology is a race at this moment in time being driven by the severe demands from mobile phones, cameras and portable computers = VOLUME SALES. There s lot s of money to be made. HOW CLOSE IS ALL THIS!

19 Laptops with fuel cells approach Get ready for a laptop that can run for eight hours between recharges. IBM and Sanyo are working on a hybrid power system for portable computers that combines batteries with a methanol fuel cell. But the extra working life comes at a cost because early versions will resemble a bulky docking station that will add to the weight of the device. IBM and Sanyo said the first hybrid power packs should go on sale in 2006 or Battery bet The two firms said that, once finished, the power pack would work with future and existing IBM Thinkpad notebooks without them needing to be modified. The methanol fuel cell uses methanol and oxygen to generate power and is one of several technologies vying to replace lithium ion batteries that are commonplace today. It is widely accepted that all possible power has been squeezed out of lithium ion batteries and alternatives are needed if laptop life is to extend beyond eight hours between recharges. Almost NOW.

20 THAT S S ALL FOLKS.

21 The Future Looks Bright. Have a good Christmas PETER BRUCE. G4WPB.

HYBRID VEHICLES AND BATTERY SYSTEMS. PETER BRUCE G4WPB WHY CHANGE

HYBRID VEHICLES AND BATTERY SYSTEMS. PETER BRUCE G4WPB WHY CHANGE HYBRID VEHICLE 2050. The original consumer battery the Leclanché cell was invented and patented in 1866 by Georges Leclanché. It consisted