New Colors ! eGo-C 650mAh Battery (Constant Voltage:3.7v) 7.59 USD

[newsunshine]

New ! eGo-C 650mAh Battery (Constant Voltage:3.7v) $7.59

 

[yes8s]

A word of advice for those interested.

These eGo-C batteries from Healthcabin cannot hold their voltage @ 3.7V when under any sort of load. The voltage drops a few hundred millivolts when vaping. On the ones I have, the voltage seems to settle anwhere between 3.2V and 3.4V.

With that said, they still perform quite well and appear to provide enough mAhs that is close enough to their rated capacity.

For best results, it's best to use them with 1.8ohm and 2.0ohm attys/clearos/cartos etc.

 

[newsunshine]

Thank you very much for your feedback.
Could you tell us how you measured the voltage at 3.2 or 3.4v?
It will be helpful for us to figure it out.

 

[yes8s]

Thank you very much for your feedback.
Could you tell us how you measured the voltage at 3.2 or 3.4v?
It will be helpful for us to figure it out.

I made my own test jig.

I used a high power 10W 2ohm resistor to simulate the atomiser resistance. I then soldered the resistor legs to thick copper contacts which make contact with the ego-c battery terminals. There is also a volt-meter that is attached to the legs of the resistor - I check this when I press the button.

If you check the voltage of the batteries when there is no atomizer or resistor attached it does regulate the voltage pretty accurately to 3.7v but as soon as there is any load, the voltage starts to drop.

I suspect that there is either a current limitation of the internal lithium battery itself or a power output limitation of the regulation circuit.

Can you ask the manufacturer to supply information about the internal battery or the regulation circuit?

 

[newsunshine]

You are right that it does regulate the voltage pretty accurately to 3.7v but as soon as there is any load, the voltage starts to drop.

 

[yes8s]

You are right that it does regulate the voltage pretty accurately to 3.7v but as soon as there is any load, the voltage starts to drop.

When the voltage drops it means they are losing about 2 watts of output power with a 1.8ohm coil.

I don't have any ego-C twist batteries to check if the same thing happens to these. They may have a better buck-boost regulation circuit to cover the wide voltage range they need to provide. If you can test these similar to how I did, I would be keen to know.

I don't have any broken ego-C batteries to do further testing on them as the ones I have are still fully funtional If you have any broken ego-C batteries, I would love it if you could send them to me so that I can perfrom further tests on them and figure out exactly what part is causing this voltage drop.