Let's start from beginning in my experience with e-cigars. It's been a while when I was purchase my DSE701 e-cigar. I see that batteries in kit are 3.7V 360mAh lithium rechargeable type ICR10440. Everything was OK with them, but some problems arrived. On fully charged condition their voltage was 4.2V. This is OK for smoking and throat hit. After a coupe of draws voltage go down to 3.5V and then come up one of the problems. Throat hit was gone because of the lowest voltage. The solution then was to draw with one battery once other fully recharge. Then after throat hit gone, I was change batt from dse701 with that battery from charger. And so and so... but yesterday new problem arrived... My batteries live cycle was gone also... I suppose i may recharge them several times and they will become not batteries but junk of lithium 
I have several batteries type 10440 in new order, but I have to invent new solution.
So, I was made My own DIY power supply. The power transformer 230VAC to 12VAC 500mA, which was not 12VAC but exactly 13.8VAC. This is OK. Diy shematic with LM317 power regulator. Then I was drive a screw into plastic cilynder which look like original battery where i connect negative voltage. On top of original screw I was connect positive with elementary twist wires. And voalaaa! My own power supply is ready. I was try it. Great throat hit, just like everytime fully charged battery
Now some technical information. Shematic with LM317 has trimmer pot from where I was tune up DC power at 4.24 VDC , and with fully draw power go down to 3.85 VDC which is OK for atomizer. I suppose that with bigger power throat hit will be most great, but I'm affraid to tune up power above 4.30VDC because I don't know where is limit of atomizer's break down. I have to place power supply in proper box. And I was thinking about some switch on 230VAC power line because of a little heat residue from power transformer (Made in PRC ofcourse)
My order with batteries arrived and now I have six batteries ICR10440 ready for draw. (The two original of them are almost junk like i said above) And in my home I draw with My DIY power supply. The other batteries are ready for my night adventures outside my home.
When I draw up a balance-sheet. The price of two batteries from DX was around 4 euro, and the whole DIY supply was cost me some skills of mine and 5 euro in total.
Cheers!
p.s. I will publish some pictures of it soon i hope.
I have several batteries type 10440 in new order, but I have to invent new solution. So, I was made My own DIY power supply. The power transformer 230VAC to 12VAC 500mA, which was not 12VAC but exactly 13.8VAC. This is OK. Diy shematic with LM317 power regulator. Then I was drive a screw into plastic cilynder which look like original battery where i connect negative voltage. On top of original screw I was connect positive with elementary twist wires. And voalaaa! My own power supply is ready. I was try it. Great throat hit, just like everytime fully charged battery
Now some technical information. Shematic with LM317 has trimmer pot from where I was tune up DC power at 4.24 VDC , and with fully draw power go down to 3.85 VDC which is OK for atomizer. I suppose that with bigger power throat hit will be most great, but I'm affraid to tune up power above 4.30VDC because I don't know where is limit of atomizer's break down. I have to place power supply in proper box. And I was thinking about some switch on 230VAC power line because of a little heat residue from power transformer (Made in PRC ofcourse
)My order with batteries arrived and now I have six batteries ICR10440 ready for draw. (The two original of them are almost junk like i said above) And in my home I draw with My DIY power supply. The other batteries are ready for my night adventures outside my home.
When I draw up a balance-sheet. The price of two batteries from DX was around 4 euro, and the whole DIY supply was cost me some skills of mine and 5 euro in total.
Cheers!
p.s. I will publish some pictures of it soon i hope.
