Hippie Dickie said:
i've seen a 18650 battery holder that has a current limiting pcb installed -- limits current to 1A ... that may be a starting point for testing.
would be entirely unuseful, the MFLB apparently needs 5A+ to operate, see the wiki FAQ.
I guess EE degree Norb is snoozing a bit on this thread/topic issue. The battery being used in the MFLB is not being 'shorted' per se. Shorting implies and unwanted high-rate current discharge.
This section of the FAQ implies the batteries *must* supply 5A to efficiently power the MFLB:
http://www.vaporpedia.com/wiki/Magi...no_on.2Foff_switch_or_button_on_the_device.3F
For example, the LB needs to switch fairly high current (more than 5 amps) AND it must be very small.
But the Li-Ion of 3.7v nominal, 4.2v off the charger, might get the MFLB too hot, *if* such a battery can supply much higher current than a NiMH battery with less voltage drop, ie provide higher power in terms of watts.
Someone like Norb, of sufficient electrical knowledge, should be able to perform a load test on the MFLB to see just how much power it takes to run the vap. using a 1.2v NiMH battery and assuming 5A would mean at least 6 watts.
In reality, if you go check some of the capacity measurements for 14500 sized Li chemistry batteries tested on CPF, none of them provide any more capacity than a 2000ma Eneloop LSD AA NiMH. Certainly, while very expensive at present, the newer Eneloop XX 2500ma NiMH can provide *more* power than a 14500, so longer runtime.
The FAQ also suggests that the 1.6+ NiZn rechargeable AA batteries can get the unit running too hot:
LiFePo4 might do the same:
http://www.vaporpedia.com/wiki/Magic-Flight_Launch_Box#Batteries
I would guess the RC designed high-current discharge capable 1700ma AA NiMH such as the "Elite", would likewise be capable of driving the MFLB to higher temps, if you want to experiment without having to buy a 14500 Li-Ion battery & charger. Go search on CPF for user "AW" who sells quality Li-Ion (albeit expensive) protected and unprotected various Li-chemistry batteries from Hong Kong.
http://www.candlepowerforums.com/vb/showthread.php?298090-The-AA-NiMH-Performance-Test-Thread
^from the Ragone plot in this thread, it appears that both the NiZn and Eiite batteries are capable of supplying up to 15watts power for a short duration, all the rest of the tested NiMH "seem" to be limited to around 10watts. Unlike the Eneloop LSD tech which have proven the most robust in retaining capacity after many charge/discharge cycles out of any NiMH, the NiZn batteries appear to suffer from rather quick loss of ability to retain charge (capacity) in relatively short time/#cycles.