Question about wall chargers?

[dj9928]

Been having a lot of issues charging my 510 batteries lately, Plug them into the computer all fine, they all charge however plug them into the wall and its a different story, the supplied AC wall charger will make the USB adaptor flash green then red to indicate charging, problem is come back to it 8 hours later and its still red, I have several of these USB wall chargers around the house from cell phones and digital cameras etc, some do the same thing, go green then red to indicate charging but not charged 8 hours later, others just go green starlight way to indicate charged when its not. Baffled as to whats going on, I have 3 batteries ego batteries, 2 USB chargers and 4 wall plugs, anyone any ideas?

 

[kiwivap]

Hi dj.
What mah are your batteries? What is the output in mA or A for the wall chargers? You'll see this on the plug as something like 1.0A, or 5A, or 500mA.

 

[dj9928]

Batteries all range from 900 - 1100 mAh, USB Charger 420 mAh, Wall chargers anywhere from 4.2 to 500 mAh, I have noticed below 500 and they go green straight away.

 

[kiwivap]

The lower the output on the wall charger, the longer it is going to take charging those batteries. I have an Ego size X2 at 900mah. It can take several hours charging with a 0.5A wall charger, and is quicker using a 1.5A wall charger.
Using below 500mA with a 420mA usb charger could mean you are outpacing the wall charger. Ideally the mA of the wall charger should be higher than the usb charger mAh. A 500mAh or above would be better. That way the usb charger can draw the current without outpacing the charger. A 1.5A wall charger will be even better.
If they are going green straight away from a charger but the battery is not charged, I'd suggest simply not using that wall charger.