Moving to battery issues
I think there is some mods out that that can utilize several (would say at least 3-4 minimum) NiMh batteries in series to bump up the voltage. But whatever you get that utilizes NiMh would likely be pretty big cause attys like higher voltage and single NiMh batts are only ~1.2v at full charge. With 3 or 4 NiMh batts in series you would get between 3.6 and 4.8 volts, but that would be a pretty hefty sized mod!
I would also be curious to see what is out there in regards to NiMh battery technology. I have high quality AW protected li-ions and a very safe charger, but despite all that there is still an underlying risk involved when using them. NiMh are pretty safe, I think they might be one of the safest rechargeable battery chemistry's out there (although don't quote me on that).
I think I may do some searching to see what I can find.
I would also be curious to see what is out there in regards to NiMh battery technology. I have high quality AW protected li-ions and a very safe charger, but despite all that there is still an underlying risk involved when using them. NiMh are pretty safe, I think they might be one of the safest rechargeable battery chemistry's out there (although don't quote me on that).
I think I may do some searching to see what I can find.
About 22% of portable rechargeable batteries sold in Japan in 2010 were nickelmetal hydride.[5] In Switzerland in 2009, the equivalent statistic was approximately 60%.[6] This percentage has fallen over time due to the increase in manufacture of lithium ion batteries: in 2000, almost half of all portable rechargeable batteries sold in Japan were nickelmetal hydride.[5]
Because non-LSDs do not have an ... separator, they are cheaper to manufacture than LSDs, yet most are offered at about the same price as LSDs and are marketed as "high capacity" or "ultra high capacity" NiMH batteries. While "high capacity" versions may have an extra 20% in initial capacity (compared to LSDs), this is negated by much higher internal resistance (especially in high drain situations) than LSDs and much higher self discharge rates (20% or more in first 24 hours, plus 4% per day thereafter). This energy wasted on heat and self discharge means these batteries require significant extra recharging which reduces overall battery life.
Interesting post, thanks OP. Looks like that material has been on the way out (in favor of the lithium cells) for years now...not sure if this would be something you'd see mass produced in a small ecig. Snagged from wiki...