Batteries

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EV Batteries

inventpeace's picture

GOING Green Green Green !

Welcome to this ANYTHING GREEN " Blog.
Recently we have been discussing researching ways to make energy free or near free, YES we know perpetual motion is impossible as everything including the sun runs down someday (billions of years), BUT some things offer for at least your life time a kind of a free ride, such as : Solar (not cheap to buy , but it does provide a kind of free energy for years), Sterling Engine (invented by a pastor in the 1600's in england it is said to be 50% (amazingly) efficient which is way above gas cars (ICE's) NOTE: IMHO the sterling engine is a combination of the hot air engine (really! ) they used in the orange industry in the south to provide a low HP power for orange sorting and crating equipment, (the hot air engine on display in debary fl museum at Debary Hall uses a firebox in which you build a fire of coal or wood and it heats air which pushes a piston, which turns a flywheel connected to a drive belt , when the piston reaches its limit, the hot air is let out, the piston (helped by the flywheel ) retreats, and the whole cycle begins again. Other types we are looking at are believe it or not: magnetic engine motors either totally free or low energy input ( "HOPING" for larger energy output).. its a shot in the dark as everyone agrees that the idea seems doomed from the onset as it seems to violate the law of conservation of energy, but on the other hand... instead of sitting in the dark in the cave, we now have light and heat etc because of inventors who refused to believe the "experts", (personally I think its a vague impossibility but its fun to look at all the tries that others have done, (search Magnetic motor on YouTube to find all the countless different designs and claims ,, two in particular to me seem on the "verge" of "maybe" being "possibly" viable..
You may know of the "perpetual" clock in the Smithsonian uses the motion of the earth to get its pendulum energy, and runs "free" forever for our lifetimes anyway. (we are upset with Smithsonian because the took the EV1 Rave Review Electric Car out at the request of GM ; GM sold the nimh 15 min electric car battery patent to Texaco in the 1999's and since then gasoline has skyrocketed)
Other ideas are a solar motor that tracks the sun using a parabolic mirror arrangement and perhaps a sterling or other type engine that can use the solar heat to power a perhaps 5hp engine.. 5hp seems low but really it would power a 2000 watt generator perhaps all day long on sunny days and really cut down your electric bill.. also function as emergency power, also could charge your electric car or bike.
I'd like to know how the electric bike batteries are holding up ?
Best Regards to all sincerely peaceful green people in the world !

Batteries and charger

Where can I get a good 48v/20ah charger that shuts off atomatically? Will get a new set a batteries. Last set cooked because the stock charger with my XB-600 did not shut off when charg was done. Any ideas wher I can get both? Thanks for info.

Battery EXPERT needed

I have a 48v scooter that has 600w on the controller. What does that make the brushless hub motor? My batteries are 12v 12amp tab connectors. Are 14 and 20 ampers bolt conect only? I added another 12v 12amp batt.4 a total of 5 batts. How can I get more speed without doing any damage.

XB-600, one year now

Had XB-600 for a year now. It still runs good, weak up hills thow. I may cooked/gassed (smell of rotten eggs, Hydrogen sulfide discharge?) my batteries during my first few charges. Only holds a charge for five to ten miles. The stock charger is a piece of junk. Green light don't come on and does not auto shut off! Question; Where can I get a good quality 48v charger?

36V 10A LIPO Batteries

Where does one find a reliable, fairly priced, warranted 36V 10A to 20A LIPO Battery?

Vego 600SX

I recently acquired a Vego 600SX but can't find new batteries to put in it since the company is out of business. Can anyone tell me where I can purchase dual 24V, 11.5 AH batteries?
Thanks for your help!

Help Needed on Battery Selection

This is not a vehicle related issue, but I am hoping someone can help me. I have a homemade portable sterio system (4 speakers, amp, ipod) encased in a rolling cube cooler that currently runs off of an Optima deep cycle battery. It works great and lasts approx 12 hours before needing to be recharged. The Optima is 12v, 55Ah. However, the Optima battery is about 45 lbs, making the system quite heavy. I am looking to reduce the weight of my battery without significantly reducing my length of play. From my research, I believe that high amp hours are what I am looking for. I need a battery that can be charged and discharged over and over. I believe it has to be 12v to power the amp, but I am not 100% certain. Is there any kind of battery out there that will power my system for 10+ hours, can be charged and discharged repeatedly, and weigh less than 20-30 lbs? The lighter the better! Any help is MUCH appreciated.

Gendronw's picture

batteries

Hi folks !

I am sorry I did not post anything new since a long time. My batteries died and winter arrived, so I was not in a mood to write anything new. But now spring is at our door ! There is still a lot of snow outside, but in a month or two I should be able to ride my Ebike Again !

Here is a picture of my backyard:

backyard.jpg

The little story of my batteries

When I first bought the bike, I paid a ridiculous price (200$) because the motor(or maybe the controller) and the batteries were dead. During the first week, I charged the four 12v batteries in parallel using the 12v output of a computer power supply. When I first received the batteries each one had about 2 to 3 volts of charge in them, but they were not completely dead. They had pass all winter without charge probably in cold condition. After one week of about 8hours of charge per day (I wanted to check them while they were charging to be sure nothing burns !) I was able to put them in series again, and charge them using the included charger. After that it took about two 2 charges of about 6hours using the 48v charger before the light finally turn green ! At this point I don't think the batteries were as good as new, but at least the voltage was right, so they would be able to turn the 48v motors !

At this point I tought the rest of the bike was O.K. But the bike really had problem at start. When I was already moving everything was fine, but starting from a stop did not work every time. After about 1/3 of the kilometer, it died. Nothing was working anymore. That's when I decided to move to XB-600 motor and controller.

After the long modification of the bike, I finally was able to ride the bike again for about two weeks. At first I was able to do about 3 kilometers, but it seems like each time I used the bike, the batteries were giving me more juice. The second ride was about 6km, and so on. Until one day I decided to make it all the way around the city ! This was the first time I depleted the batteries completely. I was able to do about 15km !! But for the last kilometers the bike was litterally crawling at about 2 to 3 Km/h, and the voltage cutoff of the controller was happening all the time when I was putting the accelerator to the floor. I waited until next morning to charge the batteries(big mistake !) and after I plugged them in the charger I went to Work. When I came back about 9 to 10 hours later, the light on the charger was still red ! And there was a really bad smell of sulphur in the air ! Normally after a normal ride, the batteries took about 6 hours to charge !

I opened the batteries case and found their form has changed ! They were once cubic, and now they were round ! Not like a ball, but their original form has changed. Since winter was to begin, I did not bought new batteries at that time. But now is the time ! I am still not sure If I will invest in lifepo4 batteries, I know they are a lot better than lead acid batteries, but I'm not sure If I want to put my ebike battery on Credit !

bubble_battery.jpg

I think I will not continue using two 48v battery in parallel. The experience was not that conclusive. It add a lot of weight to the bike, so the range is not really better. There was also a lost of power, because I used too small wires to connect everything together. I will probably rewire only one battery pack to the controller using big wire(something like 10awg or 12awg) with the smallest length possible to get the most out of that battery pack....maybe ShuntMod later !

So my blog is back !
I'll keep you in touch with my next mod !

gendronw

septechnologies

Okay I ran into this site while searching for something completely different hrmmm???
Anyone ever heard of these folks??? http://www.septechnologies.biz/

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