Fantastic idea sbslider, the BQ25895 seems to be exactly what we are looking for. The wide voltage range with automatic step up/down is perfect to deal with unstable power surces and would us even allow to add an additional 12V input for even faster charging in the car/ trailer or with larger solar panels.
I am interested x2
Put me down for 1 please sbslider.
Thanks
aslpg get number 890 on the interest list.
LGW gets number 891 on the interest list.
Yes, it looks like a very capable IC. DEL gets the credit for choosing it.
Add me for 1 more, for a total of 2.
Thanks.
Ooops, sorry I missed that, your second is 892.
The quote below is from the D4 thread were I was discussing a Anduril FW mode observed on my emisar D4
So I was telling my wife about the sunset mode on my D4,and her response was, “Is there a mode that does the reverse, so when it’s getting dark the light gets brighter?
Sounds like a great mode for a lantern.
Sunrise mode has been discussed, and there is even an early patch to implement it. It’s more tricky though, because the attiny timer is rather inaccurate. And the first patch doesn’t use sleep mode while waiting, so it uses quite a bit more power than necessary.
Let’s say the goal is to wait 8 hours and then turn on. The user could start two lanterns at the same time, and it could end up with one triggering at 7 hours and the other at 9. Or 7.5 and 8.5. Same code, same configuration, same battery voltage.
That’s the same reason why sunset mode isn’t exactly an hour. Except the timing seems to get less accurate while the MCU is asleep, and sunrise’s longer time scale amplifies the effect.
I had a feeling that the 64 minutes on my D4 may be 57 on yours. I think having a timer for 8 or programmable hours to light up could be a great alarm. I actually have an app on my phone that does this with light and sound, starting dim/faint, and slowly rising to wake me up. I like it alot.
I think what my wife meant was the sun it going down, so turn the lantern on in this new mode, much like sunrise, but the light would slowly get brigher. So when the ambient lighting is decreasing, the lantern light would increase. This would not have the same problem as the 8 or so hour timer, as it would start immediately, and a few minutes one way or the other would not really matter.
Practically speaking, most folks would just turn the light on and want it on. Me personally, I would definitely use it, likley more at home than not. I was just pleased my wife was thinking “light” thoughts. May convert another one yet. 
How about no delay, make it like hitting the snooze button on the alarm, function being “wake me up gently” ramping up slowly from moonlight to full brightness over 5 to 10 minutes. If this were accessible with one button press after running sunset mode it might be a nice option.
update:
2-channel MCPCB designed. Here is the basic design of the 2-channel MCPCB for the lantern for the 3000K ~ 5000K ( or 2700K ~ 5000K LED emitters) to work for the tint ramping. After some tests, i found that having the different color temp LED pads in-line with each other linear from the center post/tube, created the smoothest tint mixing beam pattern. (*Red ring is the white center tube that covers the wires and the center bolt) two other black holes are for screws to mount the MCPCB to the lantern head.
(open to conversation.)
Looks good! Have you got this made in PCB design software or just a MSPaint rendering? 
I still don’t see my name in the list.
just with photoshop after a couple drinks of rum :sunglasses:
can add you as 893 if your not on the list, (sbslider can check on that as he has been updating the list)
DBSAR, thanks! I definitely want one.
Interested.
The list in the OP only gets updated periodically. I also maintain the “master” list which gets updated everytime I reply to an interest post. Sometimes it gets updated before I reply to an interest post. The master list has to ways to look at the data.
interest list sorted by entry number
interest list sorted by user names
You are definitely on the list, and if you can view the google doc links you can see it for yourself. If you can’t view the links, then you will just have to trust me until the OP gets updated.
geetee03 has interest list number 893.
I will add the interest list sorted by user name at times has the last few entries on the end not sorted, as that is a manual step I do periodically. geetee03 is last on that list until I sort again.