LiFePO4 (Lithium iron phosphate, LFP, sometimes called 'lithium ferrous') may be worth a look if you are not too committed to LiPO. lower terminal voltage (nominal 3.2v, charges to 3.7v maximum) and about 80% of the energy density, but far more difficult to have any major oopsies with. see:
https://en.wikipedia.org/wiki/Lithium_iron_phosphate_battery
aside from "kweld", what else are you looking at using the cells for/in?
cheers,
rob :-)
So far no specific application of the batteries other than kweld. What i am looking for a good TOOL to maintain multitude of batteries, we use a variety of batteries and battery chemistries at work (aerospace), but all the battery maintenance tools there are 30 years old and usually we just replace the cells/batteries. I am looking to buy for my personal use and education, the most versatile, accurate and good quality tool, for now with specific application of maintaining LiPOs, but also with longer term goal of learning about and gaining ability/experience of battery maintenance which i then can transfer to work and there equip battery maintenance lab.
Just looking for most accurate and versatile tool to use and learn with. Does not need to have a one button easy mode... i have a brain for that... but needs to be built well; be accurate and offer multitude of tools such as balancing, IR measurement, discharge, may be cycling for NiCd etc etc.
Edit:L So far my home battery maintenance involves a variable voltage/current power supply, a current/power controlled discharger and a brain, a Tenergy balance charger and an easymode battery mender for Lead Acids. Just looking for good tool to become the center stage, grand daddy of all the tasks i am currently doing with manual tools.
EDIT 2: LiFePO is probably not a good match for kweld. LiPOs offer 100C discarge rate while LiFePO don't seem to go that high. I pull ~1100A via kweld.