18650 Batteries

[James467809]

Why are my 18650 (i have 2, both different brands) batteries showing only 4v at full charge... From what ive read it should be 4.2v.. I also have a cheap charger but i dont know if this is normal

 

[FallenRawToast]

Well...

How are you measuring that 4 volts?

What brand are your batteries?

How old are your batteries?

What sort of mod do you use them in?

Define "cheap charger" does it have a brand? or a built in volt meter?

 

[James467809]

I have a vamo v5 checking my voltage and my batteries are the panasonic vtc-4 and a trustfire. The charger is a cheap 15$ charger my local ecig store threw in when i bought the vamo, i asked him if it was ideal to buy a better charger and he told me his honest opinion that it wouldnt change the battery voltage and would only take longer to charge.

 

[James467809]

Brand new batteries

 

[Fedora King]

Yeah brand new

 

[James467809]

update: went to the local cape store and tested all kinds of different batteries at full charge...on all other devices they read 4.2 and on my vamo it will read 4.1 then after the first hit of vape be at 4v from then on..seems like the voltage meter is wrong on the vamo...dont know why though

 

[AlB53]

get a digital multimer to check your charger and your batterys,, and don't cheap out on your batterys and charger, spend the bucks!

 

[RGLP4Lyfe]

Its gotta be the charger! Invest in a better one! I got a efest luc v4 replacing my nitecore! Much better and was only 36 shipped to my door!

Allday setup: CNA 30w- Magma<3

 

[James467809]

its not the charger after all..its my vamo..but i don't know why it reads all batteries at 4v full charge

 

[crazywhiteboy92]

I need to get the intellicharger that is digital screen and shows voltage

 

[Rickajho]

Without telling us what batteries and what charger are involved it's impossible to answer that question.

 

[EBates]

I've owned both the Efest LUC and the Nitecore I4 and both are excellent chargers.

 

[Madcowvt]

Your device is simply 'rounding' to the closest whole number. So if it's 4.1 or 4.2 it is showing 4. If you were to check it in a multimeter it would say 4.2 I bet. Well, I don't bet since there are other variables but ..... Probably that's the case.

 

[granolaboy]

its not the charger after all..its my vamo..but i don't know why it reads all batteries at 4v full charge

Vamo's are pretty inaccurate devices all around. No big surprise there...

 

[FFPetz]

There tends to be some voltage drop that also occurs. Typically most high end chargers compensate for that. Many devices that take batteries do not. Your device could be rounding the voltage that it's actually putting out at the contact.