DNA charger cutoff voltage

[dr g]

Does anyone know the voltage point at which the dna charger goes "green"? Got one that needs testing but don't want to overcharge the battery.

 

[retird]

From Evolv's web site:

dna Charger

Our Micro-USB charging module lets you add the functionality of onboard charging to your dna 12 project or can be used as a standalone charger for non-DNA projects. It is designed for charging 3.7V 1S Li-Ion and Li-Poly cells. An onboard status LED illuminates red when charging, green when fully charged, and orange when no battery is present. Mounting holes for #2 screws are provided for easy attachment.

Input Voltage:
4.5-5.5VDC

Charge Current:
500mA

Charge Voltage:
4.2V

Input Interface:
Micro-USB

Dimensions:
0.5″ x 0.6″ x 0.14″

Mounting:
#2 screws 0.30″ apart on center

Purpose:
charger for 3.7V 1S Li-Ion & Li-Poly Cells (can be used with the DNA 12 or as a standalone charger)


If you need more info you might contact Evolv......

 

[dr g]

Yeah I have that stuff but it's not what I need. I'll email evolv.

 

[retird]

Let us know what ya find out....I'm guessing it turns green at 4.0 to 4.2 volts.....

 

[DrMA]

I use two of the Evolv USB chargers and they charge my batteries to exactly 4.20V.

LiPo charge cycles follow a CC-CV algorithm. First, current is held constant (500mA in this case) while the voltage increases. When voltage hits 4.2V, current starts to drop, but the voltage stays at 4.20V. The light turns green at the end of the charge cycle, when current draw at 4.20V drops below some threshold, probably in the 10-50mA range.

 

[dr g]

Answers from brandon @ evolv:

4.20v is the end charge voltage as drMA had confirmed.
It is okay to leave it connected on green once charged.
It is okay to vape while charging.

 

[Sad Society]

Answers from brandon @ evolv:
It is okay to vape while charging.

I think I read something on ECF that it's NOT OK to vape while the DNA20 is charging. But I don't remember where I read this.

Pbusardo's review of the Opus D uses the DNA20 and he said it was OK to vape while charging. But I wouldn't know what charger they are using in that mod. And if Brandon says it's OK...maybe whoever said it was 'not OK' was given the wrong information. Or maybe something happened to their DNA20 because of it. Maybe they were using a different USB charger in their mod that wasn't by Evolv. Makes me wonder?

 

[mre777]

I remember reading that it was not OK to use to but I think they had issues because they used the charger without the DNA20 and the battery was so low the charger was acting like a pass through and it fried.

 

[dr g]

I think I read something on ECF that it's NOT OK to vape while the DNA20 is charging. But I don't remember where I read this.

Pbusardo's review of the Opus D uses the DNA20 and he said it was OK to vape while charging. But I wouldn't know what charger they are using in that mod. And if Brandon says it's OK...maybe whoever said it was 'not OK' was given the wrong information. Or maybe something happened to their DNA20 because of it. Maybe they were using a different USB charger in their mod that wasn't by Evolv. Makes me wonder?

Mentioned by retird here: http://www.e-cigarette-forum.com/fo...how-wire-dna-charger-without-dna-12-20-a.html

He wasn't sure if it was anecdotal, so I asked the source. I guess it's designed to be ok to use that way.

 

[retird]

Mentioned by retird here: http://www.e-cigarette-forum.com/fo...how-wire-dna-charger-without-dna-12-20-a.html

He wasn't sure if it was anecdotal, so I asked the source. I guess it's designed to be ok to use that way.

Yep, we were not sure if it was an issue or not so thanks for the info......from the past...

http://www.e-cigarette-forum.com/fo...-charger-without-dna-12-20-a.html#post9244708