Maxwell BCAP1500E 1500 Farad 2.7V Ultracapacitor

You are bidding on a box of 6 Maxwell BCAP1500E BOOSTCAP 1500 farad 2.7V ultracapacitors. These are the next generation of energy storage, and will eventually replace batteries in many applications. They are very similar to normal capacitors, except they have enormously more energy storage capacity. They have the following advantages over batteries:

• Can be charged and discharged far more rapidly than batteries (almost instantaneously in most applications)
• Not affected by temperature extremes
• Virtually unlimited life (over one million charge/discharge cycles)
• No complex charge controller necessary, just be sure the voltage never exceeds the unit's rated voltage of 2.7V
• Contain no acid or corrosive chemicals

Basic specs:

• Capacitance 1500 farads
• DC Equivalent Series Resistance (ESR) 0.47 milliohm
• Self discharge 1.2% of stored energy per day
• Operating Temperature Range -40°C to +65°C
• Stored energy 5467 joules (1.51WH)
• Max Power 5184 watts
• Weight .704 lb (320 grams)
• Diameter 2.4 inches (61 mm)
• Height (not including studs) 3.3 inches (85 mm)
• Connections M12 x 1.75 threaded stud
• Stud height .550 inches (14 mm) .
  
  
  
  One important application for these devices is for electric vehicle regenerative braking. Due to their ability to quickly charge and discharge, they can recover 80% or more of the car's energy that would otherwise be lost in heat. Batteries generally can recover less than 30% of this energy due to their limited charge acceptance.
  Another application is the storage of solar energy. Many solar applications (garden lights, for instance) quickly fail due to the poor life expectancy of the battery in repeated charge/discharge cycles, poor charge control, and temperature cycling. Ultracapacitors are largely immune to these problems. 
  
  Click HERE to see the Maxwell data on this item.
  
  Click HERE and then click on DOWNLOAD to see a large number of Maxwell references, explanations and application notes.
  
  Click HERE for a short note on converting electrical energy units to mechanical energy units.
  
  And HERE is a recent article on ultracaps in cars, buses and trains.
  
  And HERE is a very good website dedicated to ultracaps with a lot of useful info and tips.
  
  And HERE is another article about large and small ultracaps and their uses.
  
  And HERE is a blog by someone who completely replaced his car battery with six 650 farad ucaps.
  
  And HERE you can see an entertaining video of how to destroy nails and coins with ucaps.
  
  
  Click HERE to see an interesting web page by someone who made a pool lighting system using solar panels and ultracapacitors.
  
  
  And HERE is a paper about charging ultracaps. A little technical, but useful information.
  
  For solar applications, you may be interested in our small copper indium diselenide thin film panels. Click HERE to see them, and larger quantities of these ucaps, and our other solar related stuff.
  Click HERE to see an interesting project solar/ultracap/ LED project made by one of our customers.
  Click HERE to see another interesting application for starting vehicles with cold engines or dead batteries. There is a lot of good technical info in the links on that page. The smallest 12V starter system is about the same as 6 1500F ucaps in series, and their list price is $1669. The largest 24V system is about equivalent to 24 1500F ucaps in series/parallel, and lists for $4028!
  
  They are also beginning to be used in space satellite applications due to their robust design and superior life expectancy over batteries.
  These ultracaps are new, unused, first quality items. Two M12 x 1.75 nuts are included with each ultracapacitor. Depending on your application, you may need a lockwasher or wave washer. A standard 12 mm or 1/2 inch lockwasher should work fine. For  technical questions email hlandis-at-hotmail.com. Buyer pays shipping duty taxes.