Different style KR808 batts?

[noo]

I just received my order from a supplier in china and am noticing that the batteries I received with the kits are different than any I have seen on here. First of all they have the non-slotted center pole, and three holes on the outside ground contact (I have seen two, and four hole varieties). The draw is very easy, and the vapor production does not seem to diminish as much when the battery dies as with my other KR batts (ordered from PremiumECigarettes - slotted w/ 2 holes).

I also noticed something else interesting. As a dork, I always measure at least the unloaded circuit voltage before I put the battery on the charger and when I take the battery off the charger. With my "Premium" brand batteries it charges to 4.2v and will drain down to about 3.1-3.2v before activating the cutoff circuit. With the new batteries, the freshly charged voltage is only about 3.8v, and the recharge voltage is 3.6v. I decided to take loaded measurements (2.5ohms) and got a voltage drop of 3.2v over the course of the battery life. I believe that the switching mechanism in these batteries is a current limiting load regulator, which is a departure from any of the other designs I have analyzed or researched. It seems to work a lot better, as it tries to maintain a constant 1.3A loaded current as the battery drains. Right before the battery dies completely (the light blinks), there is a very significant vapor decrease for a few drags but until that point it hits like a champ!

I plan on doing some more experiments when I have the time, but until then I was wondering if anyone else had seen this design? Is this something new that is getting rolled out in the KR batteries? If so, then I approve

 

[D103]

I just received my order from a supplier in china and am noticing that the batteries I received with the kits are different than any I have seen on here. First of all they have the non-slotted center pole, and three holes on the outside ground contact (I have seen two, and four hole varieties). The draw is very easy, and the vapor production does not seem to diminish as much when the battery dies as with my other KR batts (ordered from PremiumECigarettes - slotted w/ 2 holes).

I also noticed something else interesting. As a dork, I always measure at least the unloaded circuit voltage before I put the battery on the charger and when I take the battery off the charger. With my "Premium" brand batteries it charges to 4.2v and will drain down to about 3.1-3.2v before activating the cutoff circuit. With the new batteries, the freshly charged voltage is only about 3.8v, and the recharge voltage is 3.6v. I decided to take loaded measurements (2.5ohms) and got a voltage drop of 3.2v over the course of the battery life. I believe that the switching mechanism in these batteries is a current limiting load regulator, which is a departure from any of the other designs I have analyzed or researched. It seems to work a lot better, as it tries to maintain a constant 1.3A loaded current as the battery drains. Right before the battery dies completely (the light blinks), there is a very significant vapor decrease for a few drags but until that point it hits like a champ!

I plan on doing some more experiments when I have the time, but until then I was wondering if anyone else had seen this design? Is this something new that is getting rolled out in the KR batteries? If so, then I approve

Thanks for the post noo and the info! I too have KR808d-1 batteries from PremiumEcigs (the PR111 model) and I like them, smooth draw, decent vapor and decent battery life. That said, I recently ordered another kit from Cigeasy - the "Easy" model (automatic) which is also a KR808d-1 model and a tad longer and slimmer than my PR111 ( it also is the center-slotted w/two side holes just like the PR111). What I've noticed is that the "Easy" model from Cigeasy produces much better vapor initially and over the course of the charge and the battery lasts longer. I love these "Easy" models and in fact have ordered another battery. The Easy battery takes longer to charge (approx. 3 1/2 to 4 hrs) but is worth it to me because it lasts so much longer (approx. 7-8 hrs). Anyway I still use my PR111 occasionally for a change of pace. Please keep us informed as to what you find. Thanks!

 

[noo]

The Easy battery takes longer to charge (approx. 3 1/2 to 4 hrs) but is worth it to me because it lasts so much longer (approx. 7-8 hrs). Anyway I still use my PR111 occasionally for a change of pace. Please keep us informed as to what you find. Thanks!

Yes, this is my experience as well. The other batteries I have (a "111" from nhaler, and the "110" from premium) both charge in about 2.5-3 hours, but these new batteries will sit on the charger for 4 hours easily. If my suspicions are correct and the cutoff is current regulated instead of voltage regulated, the charger should be able to charge the battery closer to 100% capacity more consistently.