How to see if a battery is protected

[Allmaybe]

Thank you for explaining.

[amycheung]

Awesome …thank you so much HKJ!

[amycheung]

@light-wolff

@mattjk

Want to see if its protected? Short it with 10 gauge or similar cable if it gets really hot or blows up its probably not protected. If it does nothing it probably has a protection circuit.

Unprotected cells with PTC won’t heat up cables because they limit short circuit current (but I don’t know what “10 gauge” means).

Here is more information of gauge and voltage drop for your reference.

[huntking]

Very professional post. I learn.

[Ultrafire.Spain]

Hola a todos
Iniciamos nuestra aportación en este foro.
En principio si se nos permite lo haremos en Español para los usuarios de habla hispana y el ingles

Conocéis las nuevas baterías de UltraFire?
Estas a diferencia de las tradicionales protegidas, el PCM/BMS de protección se encuentra en el polo positivo, la ventaja es que esta ya no tienen la típica cinta de cobre que conecta el polo positivo con el PCM.

Hello everyone
We started our contribution in this forum.
In principle, if we are allowed, we will do it in Spanish for Spanish-speaking users and in English

Do you know the new UltraFire batteries?
Unlike traditional protected PCM / BMS protection is in the positive pole, the advantage is that they no longer have the typical copper ribbon that connects the positive pole to the PCM.

[snakebite]

i doubt anyone here cares about ultrafire batteries with blatant lies on the label.
other than to point at them to show others what to avoid.

[Jack_Kellar]

@snakebite

i doubt anyone here cares about ultrafire batteries with blatant lies on the label.
other than to point at them to show others what to avoid.

Pretty much, yes.

[JacksonMiller]

Thank You for information

[firedome]

Great info! :+1:

[ActiveAl]

Thanks HKJ. I've gone through this post twice. But since I am a slow learner, I and will probably come back again!