Provari Check Battery mode reading wrong?

[Xlr8shen]

Have a provari mini with a zap. When reading the battery status without the zap it will read 4.2, but with the zap on it read 3.8. I'm using a freshy charge AW IMR 18350. When the zap is remove it will read 4.2 again. I have try with my aga-t2 and the same out come. I have clean the internal of the Zap and the aga-t2. Is there something wrong with my provari mini? I bought the Provari in Jan of 2013 and the coil is set at 1.8Ohms on the zap and the aga-t2 is at 1.6Ohms.

 

[Thompson]

I believe it has to do with checking the voltage under load. You'll notice the coil activates when checking battery voltage.

Faxed in on the Mojo Wire

 

[Xlr8shen]

4.2v to 3.8v seem to be a big drop while under load from a freshy charge battery. Just seem i'm not getting enough vape time because the
provari will shut off at when it reach 3.3v even though the battery will still have a charge of 3.7v.

 

[speedemon]

Have you cleaned all your connections good this is the only time i get less life on battery pretty much tells me to clean good the inner conn ware pos of battery hits as well.

 

[Xlr8shen]

Haven't clean the connection in the provari yet. What is the best method to clean the provari?

 

[SteamDaddy]

q-tips and 91% alcohol from wallyworld is good for me

 

[Thompson]

What steam said.

Also, gut a pen and put a q-tip where the ink cartridge goes. This will let you reach down to the positive post inside.

Going to clean mine now, it been a little while.

Faxed in on the Mojo Wire

 

[Light Seeker]

Interesting, I've occasionally seen similar results on my vamo with AW IMR 350s.... but never any 650s.

 

[speedemon]

I use brasso on contacts and springs works great.

 

[Chowderhead1972]

IMO the problem is the reduced ampacity of the 18350/18490 vs the 18650. The voltage drop across the atomizer/cartomizer coil in conjunction with the smaller battery amplifies the voltage "sag". If you wanted to test this theory utilize the "cb" function with a low res atomizer and record your readings. Second screw in a 3ohm+ carto and enable "cb" again. I would suspect the second test will yield a higher reading due to the reduced voltage drop. The 18650 should read 4.1-4.2 where as the 18350 will be closer to 3.8-3.9. If you read any of these batteries with no load (no carto/ no atty) with a freshly charge battery you should read 4.2v, if not you have a battery or conductivity issue requiring attention to the tested battery or a cleaning of terminals.