Which charger would work?

[Warpclaw]

Hey guys I have the battery style from here: Ego 650mAh Manual Battery
Apparently it is an ego style battery.

I bought this charger off eBay: Universal Ego Vaporizer USB Battery Charger Cable Wholesale Lots 510 Threads | eBay

However, I found that these other two chargers that I didn't buy but also look different from the metal tip at the end of the charger.
This one: Universal USB Charger Ego Batteries 510 Threaded US Seller Fast Shipping | eBay
and this one: eGo USB Charger - 420mA - Gulf Coast Vapor

Those two chargers mentioned above look different at the metal tip from the charger that I bought off eBay.

The eBay ones mention that they both out DC 4.2V, but the second charger also mentions that its input is DC5V (the charger i bought does not mention that information)

So basically, I am wondering if I bought the wrong charger OR is it the scenario that all these chargers are the same regardless of the ego battery?
I know for a fact that the gulf coast vapor one works, so would the one that I buy work as well despite looking different at the metal ends of the charger?

 

[rowdyplace]

Been in electronics for 50+ years and I think they are basically the same charger. I would use them interchangeably.

Having said that, always use caution with new (imported) tronics. Watch the battery for the first few minutes real closly to make sure it is not getting too hot. Always charge batteries with them and their charger in a fire proof area. A ceramic bowl...coffee can...you get the picture.

Do not ever leave them charging laying on your bed or furniture.

 

[Warpclaw]

Haha they were 3 dollars each so i just ordered both in case, maybe ones faster than the other, who knows ;D

 

[Ryedan]

Been in electronics for 50+ years and I think they are basically the same charger. I would use them interchangeably.

Having said that, always use caution with new (imported) tronics. Watch the battery for the first few minutes real closly to make sure it is not getting too hot. Always charge batteries with them and their charger in a fire proof area. A ceramic bowl...coffee can...you get the picture.

Do not ever leave them charging laying on your bed or furniture.

Very good advice ^^^.

All these chargers have the same specs. USB input (5V and 500 ma minimum from computer or wall wart) and 4.2V, 420ma output. My eGo chargers look like the second and third you linked to.