Search found 13 matches

by cobber
Wed, 18 Feb 2015, 15:50
Forum: Batteries, charging, management and monitoring
Topic: Li-polymer,LiFeO4,LiMnO,which one is the best?
Replies: 23
Views: 4451

Li-polymer,LiFeO4,LiMnO,which one is the best?

Looking through the batteries tested I have used some of these in high power Ebike batteries that I built. I found the following. LG 18650HE2 is the main battery that I have used. I can buy them for US$3.80 from OSN Power and are the best value. Sony US18650VTC5 have the highest power density and ab...
by cobber
Fri, 17 Jan 2014, 17:13
Forum: Batteries, charging, management and monitoring
Topic: Li-polymer,LiFeO4,LiMnO,which one is the best?
Replies: 23
Views: 4451

Li-polymer,LiFeO4,LiMnO,which one is the best?

Jack Rickard from EVTV has tested some LiMnO battery modules from wrecked Nissan Leafs. LiMnO is not high density at 121 KwHr/Kg but is a popular choice with auto manufacturers. He is acheiving 25% increase in energy density compared to CALB LiFePO4. http://www.youtube.com/watch?v=oZuu4YMhXI0 These ...
by cobber
Mon, 14 Oct 2013, 00:15
Forum: For Sale/Wanted
Topic: Tamworth Daihatsu
Replies: 1
Views: 319

Tamworth Daihatsu

Is this car registered?
Does it have an engineering certificate?
by cobber
Mon, 23 Sep 2013, 07:03
Forum: Batteries, charging, management and monitoring
Topic: Tesla roadster battery pack
Replies: 5
Views: 1062

Tesla roadster battery pack

The Tesla Roadster packs use Panasonic CGR18650CG Li-Ion cells.
Look at the figures below and see why LiCoO2 is most popular cell used in Electric Vehicles.
http://www.batteryspace.com/li-ionsinglecell.aspx

by cobber
Sat, 07 Sep 2013, 05:39
Forum: Batteries, charging, management and monitoring
Topic: Li-polymer,LiFeO4,LiMnO,which one is the best?
Replies: 23
Views: 4451

Li-polymer,LiFeO4,LiMnO,which one is the best?

For use in Electric vehicles the most common choice is Li-Ion. Tesla uses 18650 size cells. For more information read the data sheet first regarding "Heat Resistant Layer" and stable operating temperatures before commenting. https://master-instruments.com.au/cgi/ajax/get_file/62426/1 The 18650 forma...
by cobber
Sun, 01 Sep 2013, 04:58
Forum: Scooters, mopeds and electric toys
Topic: electric bike kit supplier suggestions
Replies: 33
Views: 17250

electric bike kit supplier suggestions

GNG have a website with online store. http://www.gngebike.com They also sell on Ebay. http://www.ebay.com.au/itm/60V650W-CHAIN-REDUCTION-MID-DRIVE-ELECTRIC-MOTORIZED-E-BIKE-KIT-BRUSHLESS-/190890223075?pt=LH_DefaultDomain_0&hash=item2c71f1a5e3 An Australian manufacturer with high quality. http://www....
by cobber
Sat, 31 Aug 2013, 14:05
Forum: Batteries, charging, management and monitoring
Topic: NCR18650B
Replies: 12
Views: 2588

NCR18650B

There is a supplier on Ebay they I have used before. They have made a couple of packs for me that went into high performance Ebike builds. Their cells were upto specs upon testing so I think they are genuine. They sell all major brands Panasonic, Sony, LG and Samsung power cells that are used in ind...
by cobber
Sat, 31 Aug 2013, 04:05
Forum: Scooters, mopeds and electric toys
Topic: electric bike kit supplier suggestions
Replies: 33
Views: 17250

electric bike kit supplier suggestions

Hi, If you want to build a legal bike and get usable performance you best choice is to buy a mid motor kit. Better hill climbing, higher top speed and longer range from the battery. The best known and longest running manufacturer is Cyclone Taiwan. The better choice for value for money without compr...
by cobber
Sat, 31 Aug 2013, 03:46
Forum: Batteries, charging, management and monitoring
Topic: NCR18650B
Replies: 12
Views: 2588

NCR18650B

Panasonic manufactures 3 Li-Ion cells suitable for electric vehicles. First and most popular is CGR1850CG which is 2.25 A/Hr weighing 45g and rated at 2C continious. Their latest cells are NCR18650A rated at 2.9 A/Hr and NCR18650NB rated at 3.2 A/Hr both weighing 50g. These cells are manafactured in...
by cobber
Sat, 31 Aug 2013, 03:32
Forum: Batteries, charging, management and monitoring
Topic: Li-polymer,LiFeO4,LiMnO,which one is the best?
Replies: 23
Views: 4451

Li-polymer,LiFeO4,LiMnO,which one is the best?

The most popular battery used for electric vehicles is Li-Ion. These are used by Tesla, Nissan and most Ebike manafacturers. They have 25% higher energy density than LiFePO4.Their energy density is 175- 250 W/Kg and are safer than LiPo. Balancing and battery management is much easier than LiFePO4 bu...
by cobber
Mon, 03 Jun 2013, 15:52
Forum: Members Machines
Topic: StudentEV's Daihatsu Conversion
Replies: 106
Views: 10353

StudentEV's Daihatsu Conversion

Hi Tom, Testing of NiMh cells is a chore but you need to do this. Swollen cells are obviously damaged. The other poor cells have either low Amp/hr capacity or high leakage current and self discharge. To test capacity charge a string of cells at 1.5 amps for 30 hours. Then discharge the string of cel...
by cobber
Wed, 29 May 2013, 03:13
Forum: Scooters, mopeds and electric toys
Topic: Vectrix - Opinions Please?
Replies: 5
Views: 3370

Vectrix - Opinions Please?

Hi, I have owned a Vectrix for 3 years. It was one of the impoters ones and paid $4000. The NiMh pack lasted 3500Km with a final range of 25Km. I upgraded to Li-Ion at 90 Ahr of my own design. The bike has a range of 210Km at highway speeds and 300Km at 60Km/Hr. I think the Vectrix scooters are well...
by cobber
Sun, 26 May 2013, 05:08
Forum: Members Machines
Topic: StudentEV's Daihatsu Conversion
Replies: 106
Views: 10353

StudentEV's Daihatsu Conversion

Hi,
I am in Melbourne and have Vectrix Ni-Mh cells that you can have cheap. I know of chargers that you could but that would suit. Conatact me and I would like to help with your project.
Paul