Lithium Titanate
Hi All, I got a quote on Lithium Titanate "Max discharge rate is 10 C so 900 amps for 90 ah and 1200 amps for 120 ah The 120 will be 30% more expensive than the 90. Price for 90 ah is $150...
Forum Discussion
pianotuna wrote:
Steve,
You missed my point entirely.
Storing at -40 how do you run the furnace with no 12 volt power because you can NOT draw on an LiFePo4 for the 2 to 3 hours the furnace needs to run.
Plus my brothers experience was that storing at -40 killed an li battery. I do not know which Li chemistry it was.
the chemistry is the big thing like I said (I didn't miss the point) you can warm them with low draw at that temp you can use full draw on a LiPhO4 at -20. persoanly if I found a need to go camping at -40 I would have a normal Lead acid battery that I could just put a 12V battery warming blanket on to to prewarm them to the point there above -20 then kick on the furnace, but thats getting a little crazy isnt it?
what kind of camping are you going to do at -40? (Im being serious now) I grew up in Edmonton and area so I know what the cold is about and I dont know anyone who willing went camping that cold, -10 to -20 maybe. we used to go skidooing in the mountians but it was never that cold, Im just having a hard time seeing what your doing for camping at -40 expecialy since no camper that I have seen is rated below about -17. it would be crazy the amount of propane you would burn and still be cold, or do you just use that number because some times it gets that cold and some one could in theory want to go camping?
Steve
