Cloupor T8 & Batteries anyone got any ideas?

[imb1610]

So im part of the preorder for the cloupor T8 in case you dont know what it is it is a new VW that before 2 days ago only existed in my fantasy (was skipping sigelei 100 watt and was waiting for the new yihi 200watt device) it is capable of outputting 150watts and is equipped with all the features i could ever want as well as using MAGNETS FOR THE BACK COVER YAY!!!!!!!!!!

But im becoming increasingly worried ive ran into several places on the net speaking of a the sony vtc's as no longer being produced as well as seeing a price jump on ebay for them and to top it all off these are so dam popular that we are being swarmed with fakes what now?to all my reading there is no competition when it comes to high amp batteries

i used ohms law calculator to see how many amps i would be drawing from the batteries using the highest ohm build that can reach 150 watts(assuming this board performs well and offers true 14volts) i can reach it with about 1.3ohms and only draw about 11watts(10.xxx i round for safety) but my IPV v2 in that same manner only draws 12amps[8.4v , @1.4ohms] (11.xxx) yet they recommend a 30 amp battery

What replacement can i use for the T8? is there anything available to compete with sony's vtcs? Should i be fine with a 20amp samsung or LG? i have seen many "new" batteries(IMREN 38A, EFEST purple 35A, EFEST purple 30A, and Vamped 40A) that boast high amp limits but cant find any tests run etc. (the efest people are claiming that they are just rewraped 20A LG's) will we ever see a real 18650 high amp battery made to meet demand?

Any suggestions are greatly appreciated

 

[p7willm]

At the minimum resistance of .2 Ohms and 150 watts it will draw 28 amps plus whatever the board eats as overhead. Since the 2 batteries are in parallel yu add the amps from each battery so a pair of 15 amp batteries will give you 30 so I would say that a pair of 20 amp batteries giving 40 amps should be OK.

I don't have a great deal of trust for Cloupor so I would be careful to check that the wiring is sized to handle the 28 amps.

Also their board does not buck, reduce voltage, and the yihi board in the sigelei does.

 

[imb1610]

At the minimum resistance of .2 Ohms and 150 watts it will draw 28 amps plus whatever the board eats as overhead. Since the 2 batteries are in parallel yu add the amps from each battery so a pair of 15 amp batteries will give you 30 so I would say that a pair of 20 amp batteries giving 40 amps should be OK.

I don't have a great deal of trust for Cloupor so I would be careful to check that the wiring is sized to handle the 28 amps.

Also their board does not buck, reduce voltage, and the yihi board in the sigelei does.

but thats assuming they are running the 18650's in parallel could they be in series?

 

[p7willm]

I looked on the Cloupor site for specs on the T8 and found nothing but on fasttech I saw what it said 7w to 150w and 5.6V to 14V and resistance .2 to 4 ohms.
At minimum volts of 5.6 you need a resistance of 4.48 Ohms to get 7 watts. So apparently the specs are wrong.

 

[imb1610]

I looked on the Cloupor site for specs on the T8 and found nothing but on fasttech I saw what it said 7w to 150w and 5.6V to 14V and resistance .2 to 4 ohms.
At minimum volts of 5.6 you need a resistance of 4.48 Ohms to get 7 watts. So apparently the specs are wrong.

Now sigelei 100watt has not come out yet so i wont say for certain but dont you remember(if you saw it) it was originally announced (on official yihicigar website) that the sx 330 v3 was a 3.5-7v board yet somehow siegelei is now announcing a 3.5-8.5v volt range idk why chinese companies put out bull.... specs but it is possible i guess im more worried about it being able to deliver a true & CONSISTENT 14v

BTW i never build at the lowest ohm setting i see no reason to i aim to build slightly below the ohmage that will yield the full power of the mod (with my limited understanding of electronics this helps preserve battery life by lowing the amp draw[i know it gets more complex with efficiency rating of the board and also how that efficiency changes due to increasing resistance secondary to increased heat] so i need about 1.3 ohm coil to be able to reach 150watts IF AND ONLY IF this mod delivers consistent 14 volts but i will probably build around a 1.1-1.25 ohm coil/s just to be safe

 

[imb1610]

yep its in series

 

[Despraci]

Sony VTCs are still made, they just moved to a different manufactory site. There was a report from an email from Sony, but that stony employee was supposably misinformed and the main site the VTC was moved out of Japan and they are not 100% capacity. So there is a shortage to an extent, but according to another Sony rep they are increasing production.

EFest thends to infant their battery capacity and are based on pulse ratings. The purple 20amp may not even be an IMR battery as they advertise it as such. Not sure if a trust a company that conducts business this way.

Vamped is untested as of now.

My choice if I had to buy batteries right now would be MNKE for a trusted supplier.

 

[imb1610]

Sony VTCs are still made, they just moved to a different manufactory site. There was a report from an email from Sony, but that stony employee was supposably misinformed and the main site the VTC was moved out of Japan and they are not 100% capacity. So there is a shortage to an extent, but according to another Sony rep they are increasing production.

EFest the dis to infant their battery capacity and are based on pulse ratings. The purple 20amp may not even be an IMR battery as they advertise it as such. Not sure if a trust a company that conducts business this way.

Vamped is untested as of now.

My choice if I had to buy batteries right now would be MNKE or AW for a trusted supplier.

Thank you so much <3

 

[beckdg]

Sony VTCs are still made, they just moved to a different manufactory site. There was a report from an email from Sony, but that stony employee was supposably misinformed and the main site the VTC was moved out of Japan and they are not 100% capacity. So there is a shortage to an extent, but according to another Sony rep they are increasing production.

EFest thends to infant their battery capacity and are based on pulse ratings. The purple 20amp may not even be an IMR battery as they advertise it as such. Not sure if a trust a company that conducts business this way.

Vamped is untested as of now.

My choice if I had to buy batteries right now would be MNKE or AW for a trusted supplier.

150 watts on 2 AW cells?

I wouldn't condone that in my house. Simply because the batteries would struggle something fierce. Noone likes saggy batteries.

 

[Despraci]

150 watts on 2 AW cells?

I wouldn't condone that in my house. Simply because the batteries would struggle something fierce. Noone likes saggy batteries.

That is correct and beckdg's is wise. The AW IMR batteries would struggle at max output.

 

[beckdg]

That is correct and beckdg's is wise. The AW IMR batteries would struggle at max output.

And quite a bit below it. 30 watts with an AW cell is pushing it IMHO. Else be for warned. Performance is going to suffer greatly.

 

[Baditude]

The AW 18650 1400mah IMR's are 24 amps continuous.

I can't speak for the over 50 amp boards, but Evolve (maker of the DNA-50 boards) says they require a 12 amp continuous discharge IMR battery. You likely don't need a 30 amp battery. Any of the 20 amp batteries should do, and there are several of them:

AW
18650 1600mah 24A

LG
LG18650HE2 2500mah 20A

MNKE
18650 1500mah ​20A

Orbtronic
Orbtronic 18650 SX22 2000mAh 22A
Orbtronic 18650 2500mAh 21A
Orbtronic 18650 SX30 2100mAh ​30A

Samsung
INR18650-20R 2000mah 22A
INR18650-25R 2500mAh 20A

Sony
18650VTC3 1600mAh 30A
18650VTC4 2100mAh 30A
18650VTC5 2600mAh 30A
26650 2600mAh ​26A

Efest
red 18650 1600mAh 30A
purple 18650 2500mAh 35A* (rebranded LG18650HE2 2500mAh 20 amp*)
purple 18650 2100mAh 30A (rebranded Sony 18650VTC4)

 

[p7willm]

Looking closer at the pics and the 5.6 minimum volts from the specs it looks like the batteries are in series. That makes me trust it even less. It's a problem discharging batteries in series but charging them is even worse unless they have a real nice charging controller.

I would be much happier if the batteries were in parallel, better to supply the amps, and they already have the circuit to increase the voltage.

 

[Zay_Haze]

Thats a shame, the T8 was looking so promising too, maybe Ill just wait for some reviews and see if its worth it or not...dat screen though.

 

[downsm2]

Either way, gonna want to have 2 sets, 1 charged and 1 being used if you go up that high on the wattage. Can't charge using the USB port.....

 

[windxrunner]

I noticed that the nominal voltage for the LG HE2 is 3.6v. The Efest that we all believe to be the rewrap of it says its nominal voltage is 3.7v. Sup with that?