Howdy, BLF members. I’d like to draw your attention to the Emisar D4’s reverse polarity protection. Last night I left a Samsung 30Q in backwards and it drained the battery to 0.0 volts overnight. The battery is now destroyed, so make sure you don’t leave yours in backwards. The light’s low voltage protection only works with the battery the right way around. Some energy loss is occurring when it’s backwards, causing it to be depleted below safe levels.
To improve reversed-battery behavior, the driver hardware would need to be redesigned. The firmware (LVP) can’t do anything about it since it can’t run unless it has the correct voltage. I’m not sure what measures can be taken, but I would hope that it would simply do nothing instead of draining the cell. That’s up to the analog circuit designer though; it’s not something I can fix.
A worried friend had already got his d4 and d1s yesterday, and since they didn’t officially start selling, d4 hasn’t been tagged yet. The structure and length of cyan d4 have not changed, except that the surface of the frosted surface, its body and old d4 can be exchanged for use, this is the photo he Shared.
I guess I’m finally deciding myself to go for this light :person_facepalming:
I’ve been reading and watching the photos and now I need to decide the emitter to pick.
Can anyone compare or show this one in particular? XP-G2 S4 3D, 4885K
I’ve seen the comparisons between XP-G2 S4 5D, 4000K and Nichia 219CT 90CRI, 5000K, but unless I missed it, I guess I didn’t see any of the 4885K.
I’d appreciate to see one if anyone has it :+1: Thanks in advance!
Yes, the light is fine. So RPP works as intended—it just has an unintentional flaw that eats batteries. It shouldn’t be a problem unless you’re used to putting batteries in backwards (ahem, Olight).
As an intense Olight user (S baton Series), I totally understand why you would put a battery bacwards…
Emisar’s feature of blinking twice when fed a new battery is really useful for that matter