Are Ultrafire Li-Ion Batteries protected?

x2x3x2 · Jan 15, 2007

Particularly, the model TR18650?

Also, the new Ultrafire charger has 4.2V/450mA output, while the DSD charger has 5.5V/450mA output. Will the difference in output voltage affect the charging of 3.7V Li-Ion cells?

There are a few good looking multi-charger and battery packages on eBay, just wondering if anyone know weather Ultrafire batteries are protected?

Thanks

Led_Blind · Jan 15, 2007

None of the ultrafire batteries i have are protected.

x2x3x2 · Jan 15, 2007

I see, which are the ones u are using?
Any of the newer 2400mAh 18650, like the following?
The description says "The voltage of full charge and cut-off discharge is 4.2V and 2.75V", does that mean anything?

Led_Blind · Jan 15, 2007

"The voltage of full charge and cut-off discharge is 4.2V and 2.75V"

This statement sounds like the recomended charge and discharge cut-off and is not indicate a protection circut.

I use their 3v CR2 (in my ion) and the AA's. THe AA lions have the same comment writen on the cell. No circut is present in either the cr2 or AA cells.

x2x3x2 · Jan 15, 2007

Thanks for the info bro, i guess ill be sticking to good ol' AW's

Are Ultrafire Li-Ion Batteries protected?

x2x3x2

Banned

Led_Blind

Enlightened

x2x3x2

Banned

Led_Blind

Enlightened

x2x3x2

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