Rollodo
1 kW
You only resurrected a 2.5 year old thread, but okay.BYqSXt8Z said:batteryspace has some too
https://www.batteryspace.com/Lithium-Titanate-Battery.aspx
You only resurrected a 2.5 year old thread, but okay.BYqSXt8Z said:batteryspace has some too
https://www.batteryspace.com/Lithium-Titanate-Battery.aspx
Rollodo said:You only resurrected a 2.5 year old thread, but okay.BYqSXt8Z said:batteryspace has some too
https://www.batteryspace.com/Lithium-Titanate-Battery.aspx
BYqSXt8Z said:batteryspace has some too
https://www.batteryspace.com/Lithium-Titanate-Battery.aspx
Doctorbass said:BYqSXt8Z said:batteryspace has some too
https://www.batteryspace.com/Lithium-Titanate-Battery.aspx
But their max C rate for charging is only 5C.. the one I got are 15C.. bt anyway these are useless for me because these have so slow power density!
Doc
BYqSXt8Z said:Doctorbass said:BYqSXt8Z said:batteryspace has some too
https://www.batteryspace.com/Lithium-Titanate-Battery.aspx
But their max C rate for charging is only 5C.. the one I got are 15C.. bt anyway these are useless for me because these have so slow power density!
Doc
where did you get them? What was your cost back then?
I am looking at making a tiny secondary pack (my main one is LiFe 16Ah of the red headways), but now I'd like to make a small but intense pack for anything BUT endurance (which my 9kg pack provides plenty of) that I can play with, but keep the cost down by having the super fast charger, while keeping safety and longevity (so no lico). LTO sound like they fit the bill.
BYqSXt8Z said:hum... Do you know where he sells them now?
Since you have had a chance to play with them, what is their voltage range? The papers I find online seem to vary quite a bit from paper to paper. Also, how is the discharge curve? Lots of sag?
LockH said:So. First posts in this thread back in May/June 2011.
Master Doc? `Been running these cells as packs all these years? Care to estimate cost per mile (or kilometer) over this time? And stuff like year `round (hot/cold temps) use, or? Peak/continuous/average charge/discharge rates? Any "bad" cells? "Stuff" now starting to "sag" vs fresh/new?
Call me curious.
Doctorbass said:Welll after i got the specs from these cells i was a bit disapointed.. These are 1.8Vdc nominal and 1.0Ah and 5C discharge and 15C charge.. witch is not the very great advantages for ab ebike... So i am keeping these in the original box, untested and unused... I have no interest in using these in a usefull project. Wh/kg is too low and power density too ( 5C and that low Wh/kkg make thsese celsl about equal to Lead acid... but that can cahrge in 4 minutes..
I might put these for sale soon...
Vanarian said:Doctorbass said:Welll after i got the specs from these cells i was a bit disapointed.. These are 1.8Vdc nominal and 1.0Ah and 5C discharge and 15C charge.. witch is not the very great advantages for ab ebike... So i am keeping these in the original box, untested and unused... I have no interest in using these in a usefull project. Wh/kg is too low and power density too ( 5C and that low Wh/kkg make thsese celsl about equal to Lead acid... but that can cahrge in 4 minutes..
I might put these for sale soon...
Doc,
You might want to advertise the pack for sale on e-skates section! 180Wh 36V and 25A continuous alone are not that great BUT 180Wh with 4 minutes charges and contained weight (aroung 4.3kg battery) will interest people!
Planning a quick stop on the way with the skateboard at a coffee and get fully charged for 4 minutes is rare stuff.