Sofirn Q8 group buy (gb closed, but try PM to Sofirn for discount)

Gold plated contacts in budget flashlights we would see!

I would like to purchase one Q8, from Amazon in the US please.

I have always used Paypal for the Sofirn store - where it shows payment method there should be an option “change” on the right side of the screen - pick that and you should see paypal option

Thanks shirnask! I’ll try that

If you post here you should be good to go. The front page list has not been updated since you first posted. Last name on list was from 9/4. You signed up 9/5.

We are still waiting for the Amazon coupon, so no big rush. I don’t even see it on Amazon US yet.

Cool, thanks Jason.
Just ordered a set of Samsung 25S cells for it. :smiley:

interested amazon US

I updated the list. It contains interest in 126 lights now, of which 56 from Amazon US. So Sofirn may already send an extra batch eastward.

Is the Sofirm Q8 has built in reverse protection? The battery I ordered are all unprotected samsung button top. I have flat top but still works with blf Q8. Sorry if this is mentioned somewhere. Thanks :slight_smile:

There is a diode that keeps a reverse mounted cell from ruining the driver, but in this case one cell in backwards and three in forwards will cause you a much larger issue! The 4 cells are parallel, inserting one cell backwards could well cause you to learn a new dance…

All 4 cells in backwards should not hurt the driver, won’t work of course. Possibility of blowing the reverse protection diode though, in which case the driver wouldn’t work until the diode was replaced.

I just couldn’t remember how I got to PayPal when checking out. Knew there was a way.

Thanks Dale.

If you use protected high drain battery, 4 cell parallel, 1 cell backward, would the battery protection prevent explosion or bad issues? Thanks :slight_smile:

Inserting a cell backward is likely to melt the springs and potentially damage the batteries, but it’s unlikely to damage the driver.

Using protected cells might reduce the damage, if the protection trips early enough. But it might not.

Thanks :slight_smile:

HONDARIDER if you figure it out could you PM me please? I messaged Sofirn store and they said they take PayPal. Just wasn’t very clear on how exactly to do it.

Question out of curiosity for you all that are asking about putting one cell in backwards.

What would that do, or what are you wanting to happen? Brighter light if it doesn’t destroy the light, driver or whatever?

1 - put the item in your cart

2 - click Buy

3 -

4 -

Interested!

It creates a short circuit on the battery. Like taking a wire and going from the positive to the negative. The battery could get super hot and explode. It’s the same as putting a wrench across your car battery terminals. Very, very bad.

In the Q8, the springs usually get hot in less than a second and go soft from the heat ruining the spring.

Always insert the batteries in correctly.