Saturday 12 November 2016

The Black Diamond ReVolt headlamp demanding Black Diamond batteries

I have a Black Diamond ReVolt headlamp which is nice with its night vision red light, light intensity variation and USB charging. Now, after 2,5 years of usage the LED:s started to blink red and orange which apparently means the batteries are screwed. The manual says you have to use Black Diamond batteries which is obvious marketing bullshit, so I got some Varta 1000 mAH, 1,2 V rechargable batteries from the closest store.

But as I got home and replaced the batteries the LED:s started to flash red, which means the batteries are not Black Diamond batteries. WTF I though in disbelief, what could be the difference between two types of NiMH 1,2 V, 1000mAH rechargeable batteries? Looking closer at the headlamp I noticed contacts at the - side of the battery holders. In the picture below one of those contacts can be seen to the right (the - side) in the empty slot.

I always wondered why the Black Diamond batteries didn't have that coloured cover along all the length. At first I thought the headlamp checks if there is a connection between the - pole and those weird extra contacts. So I took a knife and cut off the cover at the - end of the batteries (this has been done to the batteries in the picture) and I got the LED:s to blink green (as in charging). Why, Black Diamond, have you done this stupid thing? To sell more batteries?

Ordering new active carbon for my Katadyn Vario water filter at MontK in Berlin I also talked about headlamps. It turns out Black Diamond has had a lot of trouble with their headlamps so my verdict is clear: Screw it.


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