john61ct said:
DogDipstick said:
Depends on your definition of "lipo".
The "lipo" in my bike like giving capacity down past 3.6v, EV lipo.. ... But yes HK hobby lipo hates anything under 3.8v...
What do you mean by that last? That there is little capacity below that voltage? Or that you think they are being damaged by being drawn lower?
Could you please link to the "EV lipo" in your bike, never heard of that.
Just because a given chemistry is packed in pouch format, often called prismatic form factor, that's got nothing to do with the "LiPo" label, if that's what you mean.
... You have never heard of an "Electrical Vehicle " ? ( EV) ( Production designed and sold vehicle with electric traction) ( Chevy Bolt, Tesla S, Audi E, many many more in production today)
Yes, Not all "lion" is "cylindrical" and not all "lipo " is "pouch" format.
For simplicity I generally refer to the square pouch cell advertised by HobbyKing as "lipo" and this is not in direct regard as to the chemistry. This is a "HK lipo" in my vernacular. Includes Graphene Turnigy HRB Nanotec Multistars, ect. Generally a powerful but low quality cell that puts out current but will puff badly when taken below 3.8v regularly. Yes, the full mAh is there but they puff if you use it all. So generally ( on my rcheli) I dont go below 3.6v, (or 35% SOC or less) in hopes that my packs dont PUFF like mad ( like I know they do) from high amps/ mAh taken from the pack. These are cells without mutch regulation, sold for more than they are worth IMO, with replacement warranty, for the average consumer, on websites in China like "HOBBYKING".
For simplicity I generally refer to the square pouch cell ("EV Lipo" as in "Electric Vehicle" Lipo) advertised by LG and OEM like Chevy and Kia as "lipo" and this is not in direct regard as to the chemistry, but the common vernacular used in these forums with other commonly known traits of the cells. However, like the cells on my bike, they are generally a "true gel electrolyte" lipo. I run these down to the min of capacity, the SOC map shows about 6Ah below 3.6v, 6 Ah between 3.6v and 4.05v... and 3+ Ah above 4.05v. ( My LGX P1.5B cell, 15Ah 1.2mOh) These are cells produced by LGX Chem, made for a real electric vehicle, for on the road, long term durable good, NHTSA standard. The cells in my ebike were made in Korea and assy in Ohio. These cells are only commonly beginning to be available to the consumer who does not want to recycle one out of a junkyard.... ine came from junkyard. Much higher quality control goes into EV production than HK production. Billions more I bet.
Yes, not all pouches are really " lipo" and not all cylindrical cells are " lion" but for the general consensus, I figured you guys would understand the differences with context. Many cells have very different SOC vs Voltage mappings I have found.