Nitefighter BT70 Review

[tigris99]

Alright a light for all you guys that like REDICULOUS amounts of light lol.

BT70 @ gearbest.com

This thing is a beast, and output to match. Plus its a “budget” light THAT COMES WITH PANASONIC 18650B 4X pack (yes I took the rubber and wrap off to check for sure). Probably Land aircraft with this thing,lol.

Available in kit or light head only.

Ill skip the typing go straight to the video:

- YouTube

Heres the output readings I got from it, draw from pack:

Low= 0.1A

Medium= 0.7A

High= 1.9A

Turbo= 4.8A

Reading on turbo at the emitters: 1.09A. Set up is 7 parallel. I measured resistance (sense resistor is a current shunt,lol) and calculated driver output would be 7.6A. Yeap 7 XP-G2 at 1.1A each…… In a light head this size. Gets hot, but OMG does it put out some light.

[kronological]

Nice review…love your current testing setup.

Brings back memories of when I used to night ride.

[lionheart_2281]

Package Contents: 1 x Nitefighter BT70 Headlamp, 1 x 18650 6800mAh Battery Pack, 3 x O-ring Mounting Strap, Gopro Adaptor, Extension Cable, 1 x Charger, 1 x Cable Tie, 1 x English User Manual

Is this wrong?

[will34]

Great review!! Thanks

Can you upload the picture of the housing behind the emitters? It doesn’t show in here

[unknown00101]

@lionheart_2281

Package Contents: 1 x Nitefighter BT70 Headlamp, 1 x 18650 6800mAh Battery Pack, 3 x O-ring Mounting Strap, Gopro Adaptor, Extension Cable, 1 x Charger, 1 x Cable Tie, 1 x English User Manual

Is this wrong?

I would assume the 4x 3400mAh cells(Panny Bs) are in 2s2p.

[lionheart_2281]

@unknown00101

@lionheart_2281

Package Contents: 1 x Nitefighter BT70 Headlamp, 1 x 18650 6800mAh Battery Pack, 3 x O-ring Mounting Strap, Gopro Adaptor, Extension Cable, 1 x Charger, 1 x Cable Tie, 1 x English User Manual

Is this wrong?

I would assume the 4x 3400mAh cells(Panny Bs) are in 2s2p.

Even still, it’d be 13600mah, that’s what I was getting at

[atbglenn]

Excellent review. Makes me want to start riding again :)

One of our night rides back in the early 90's with our Nightsun/Nightrider halogen lights. (I'm the third from the right..

[Kloepper_Knife_Works]

@lionheart_2281

@unknown00101

@lionheart_2281

Package Contents: 1 x Nitefighter BT70 Headlamp, 1 x 18650 6800mAh Battery Pack, 3 x O-ring Mounting Strap, Gopro Adaptor, Extension Cable, 1 x Charger, 1 x Cable Tie, 1 x English User Manual

Is this wrong?

I would assume the 4x 3400mAh cells(Panny Bs) are in 2s2p.

Even still, it’d be 13600mah, that’s what I was getting at

Incorrect, it’d be 6800mah @ 7.4v in 2S2P.

I’m trying to decide if I’m going to give Nitefighter another chance. Tried ordering one of their products and never got’em(not direct, through BG, or GB can’t remember).

[tigris99]

Lionheart, not sure where you were told that’s how you calculate capacity but its not correct. Cells in series do not gain capacity, they increase voltage. Liion 18650 cells are 4.2v each, to make 8.4 its 2 cells in series. So each pair is only 3400mah still. There are 2 sets in parallel with makes it 6800mah capacity.

Here’s the pic:

[lionheart_2281]

@Kloepper Knife Works

@lionheart_2281

@unknown00101

@lionheart_2281

Package Contents: 1 x Nitefighter BT70 Headlamp, 1 x 18650 6800mAh Battery Pack, 3 x O-ring Mounting Strap, Gopro Adaptor, Extension Cable, 1 x Charger, 1 x Cable Tie, 1 x English User Manual

Is this wrong?

I would assume the 4x 3400mAh cells(Panny Bs) are in 2s2p.

Even still, it’d be 13600mah, that’s what I was getting at

Incorrect, it’d be 6800mah @ 7.4v in 2S2P.

I’m trying to decide if I’m going to give Nitefighter another chance. Tried ordering one of their products and never got’em(not direct, through BG, or GB can’t remember).

Overlooked 2S2P, good pick up