High Ampere Batteries and Lasers (?)

Off-topic Chatter
1

Hello, first of all sorry for another help topic. I hope one day I will contribute to this forum. :slight_smile:

2 years ago I bought a $9 cheap green laser that can light matches. But I did not know about batteries back then. So I bought a random Samsung battery which turns out to be Samsung 26F.

I have learned that it is 5A battery. So I do not know what would happen if I put a high ampere battery into that laser.

In flashlights, if the light has FET or enough 7135s. It can handle a lot of power (LEDs capability is not discussed). But how about lasers? They use 7135? I am almost sure that cheap laser does not have fet but maybe it has another thing to handle high ampere.

So, how does high ampere cells work with hand held pointers/lasers?

Thanks.

2

Basically, the only thing you have to worry about is voltage in the first place. If the laser pointer (or any other electronic device) uses a single standard power/drain 18650, then it does not matter whether you use 26F or 30Q, as the (effective) voltage is the same. So it should be no problem.

3

I mean will it be more powerful if I use a high ampere cell with laser pointers? :laughing:

In my case, I am asking for these kind of cheap Ebay laser pointers:

4

I’m not into electronics, but my guess is no. The reason is that usually the laser’s output is fixed, for example 5mW. The device will be demanding a certain power from the cell to generate this output, therefore it should not matter whether you use a high drain cell or not. I think the principle is the same regarding the Skilhunt H03 (another question you asked). I replied that max output does not matter whether you use 30Q or NCR18650B.

5

Thank you. :slight_smile:

6

Hi…i am a new user here. As per my knowledge you should check voltage in the first place. If the laser pointer uses a single standard power/drain 18650, then it does not matter whether you use 26F or 30Q, as the voltage is the same.

ball grid array assembly

7

with those illegal 2-4W 445nm blue laser weapons it matters which battery you have
especiqally as blue laser diodes have a relative high forward volatge

high power >500mW 532nm DPSS lasers have a 2-3W 808nm pump diode which need only 2.8-3V so the voltage sag of the battery does not matter

with more current the voltage sag of 30Q is a lot less than for 26F

for those <100mW lasers the battery does not matter as the power the driver needs is very low

8

yep
i have one of the X-watt blue lasers
it runs on w 16340s [NOT one 18650!] - for about 2 minutes
before that it is very dangerous

the green ones are usually legal power and a high amp battery won;t do any more

they just look really bright because green is the most sensitive color to the eye

wle