How often do you charge your EDC light?

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CollectEverything
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How often do you charge your EDC light?

I started truly “EDCing” just a couple of years ago and I started with the Zebralight SC64c LE. It sips energy and I don’t need my light every day. Consequently, I have never actually had that one get truly low before I decided to top it off.

On the other hand, I bought some D4V2s lately and they are so inefficient I’m left amazed that some people apparently EDC only D4V2s. I’ve essentially just been playing with them off and on and the hotrod one (XPL-HI 5000k) is almost down to 3 volts already. How often do you guys charge those EDCs of yours?!

(I do acknowledge that the hi-mode aux lights aren’t helping me here)

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Hank33
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I charge mine at around 3.5 to 3.7 volts. I like to keep things happening in the middle range when it comes to charging batteries.

CollectEverything
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Hank33 wrote:
I charge mine at around 3.5 to 3.7 volts. I like to keep things happening in the middle range when it comes to charging batteries.

I follow that philosophy for my phone because the battery is harder to replace. For flashlights I tend to use the full capacity. How often do you charge though? Do you do it on a schedule to make sure you don’t run out?

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Hank33
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CollectEverything wrote:
Hank33 wrote:
I charge mine at around 3.5 to 3.7 volts. I like to keep things happening in the middle range when it comes to charging batteries.
I follow that philosophy for my phone because the battery is harder to replace. For flashlights I tend to use the full capacity. How often do you charge though? Do you do it on a schedule to make sure you don’t run out?

I charge till the battery is full. Schedule wise, I just chk every few days or after heavy use using the flashlight battery checker and go from there or I’ll use a meter if the flashlight batt checker isn’t built in.

Lightbringer
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Occasional use, “every now and then”.

Heavy use per incident, check and/or top off anyway.

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Forsythe P. Jones
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I have one rechargeable light which is a Fenix BC21 (1×18650 bike light that is also nice as a handheld light). Not EDC but I use it around the house. When the battery voltage reaches some level (I haven’t measured it), a red indicator led starts blinking when I turn it on. Sometime after that I get around to charging it.

My main EDC is usually a 1aaa light which has either an eneloop or a disposable cell in it, depending. Either way, I just use it til it noticeably dims, the high modes stop working, or whatever, then recharge or replace the cell. If it craps out completely I’m not caught in the dark. I still have my phone with its built-in light, and a tiny 1xLR44 light on my keys.

jon_slider
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how often, depends on my use pattern

last night I went camping, today Im recharging 3 lights

other times I stay home all week, I dont recharge at all.

I use a DMM to check battery voltage, as needed

I recharge LiIon when it goes below 3.5v
I recharge Eneloop, when it goes below 1.2v

zoulas
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jon_slider wrote:
how often, depends on my use pattern

last night I went camping, today Im recharging 3 lights

other times I stay home all week, I dont recharge at all.

I use a DMM to check battery voltage, as needed

I recharge LiIon when it goes below 3.5v
I recharge Eneloop, when it goes below 1.2v

How do you check battery voltage with DMM without taking the battery out?

Forsythe P. Jones
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Yeah if I go somewhere with an aaa light I usually just bring a spare cell along rather than fussing about the charge state of the cell in the light.

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I carry several lights on a daily basis, and for all of them the procedure is almost the same: when I that the light on max is dimmer than it should be, I check it (in case the battery is removable) or I run it until is weaker (in case the battery is not removable).

Examples
Removable battery:
- Olight i3T EOS: runs on AAA (Ni-MH), I check the battery when High is dimmer than normal
- OTR 311: runs on 16340, the driver is from led4power, so it steps down when the battery voltage is around 3.5V, so I take it out, check it and charge it normally in the flashlight (USB-C)
- Olight Warrior Mini: when Turbo and High are dimmer than usual, I check the battery it and charge it if needed
- Olight S1R Baton II: same as above

Non-removable battery:
- RovyVon Aurora A8U and A5R: when High is dimmer, I turn the light ON till it goes to a dimmer level and almost shuts off, and charge it then
- RovyVon A23: same as above

BOO5TED
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I’ve got a couple different EDC lights, most are 18350s. I use my light the majority of the day(service manager at an auto repair shop), usually every three days or so I have to recharge the cell.

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NeutralFan
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I have too many EDCs, but I enjoy them all for their unique CCTs/tints/lumens. I will normally use 1 for a week or so then switch to another. I then top off the battery and put it back into the collection. Or if I use it a lot for whatever reason, I will just charge the battery up and then switch to another.

My wife’s EDC (my old Zebralight SC62w) get’s charged up when it no longer stays on high for more than a second or so. I then get to see how the battery is holding up to its rated capacity. For some older Panasonic NCR18650B, they are doing remarkably well.

I’d rather use my flashlight around the house than turn on the lights.

Sillen
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One of the FW lineup is my current EDC so I can easily check batter voltage.

Same with Astrolux K2 & S41. E3S is the only one that I need to check periodically.

dthrckt
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I just always have charged batteries (but not all of them are charged) and I swap one in every 2 or 3 days depending on run time.

how crazy is this
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Not sure how to define EDC anymore;-) Always have a Ti3 AAA in my pocket so I guess that is definitely EDC. At the moment it is basically a spare battery for my other current EDC — the light I currently use more than any other — an E02II. Basically just a habit to swap the battery daily. Sometimes I forget. Usually will make a couple of days. Long walk with the dogs every night so it always gets used and if too much the Ti3 is always available. When jacket / coat weather, and clipped to the poop bag pack at the moment is a SC31 Pro. Don’t remember the last time I swapped batteries on that. A few days ago it flashed out 4 V and usually won’t swap until it gets down to 3.6 or thereabouts. Guess the SC31 Pro is an EDC but doesn’t get used a whole bunch. Maybe once a month or so will swap a battery. Love Andruil and the fact that I can easily see where it is at.

richbuff
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 I like to charge less rotated edc lights a little bit lower, around 3.5 to 4.0 volts.

The ones I rotate into use more often, higher, around 3.7 to 4.15 volts.

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Helios azimuth
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Since I want my Lithium batteries to last, I charge when they are around 3.5, and I charge up to 3.9 or 4.0. Unless I am out overnight, then I run them lower if needed.

freeme
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I like to keep them at FULL charge for EDC or frequently use ones. 

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wle
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i usually keep a bat in the charger, and change it when volts go down to 3.5

takes a week usually for me

the fw3A volt meter is very handy, otherwise i would prob just wait til it quit getting bright enough for me, to change:)

wle

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pennzy
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I use high a lot. I recharge around 3.5-3.7v which is quite often. This is why I’m upgrading my 26650 to 26800 where possible.

Perception
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Quote:
I’ve essentially just been playing with them off and on and the hotrod one (XPL-HI 5000k) is almost down to 3 volts already.

There’s your problem. The D4V2 isn’t as efficient as the Zebralight, but it’s not a whole lot worse. Once you move up the ramp you’re moving into multiples of the Zebralight’s output and 15+ amp draws, so it follows that you go through the battery quickly. Pulling 15-20 amps out of a 3 Ah battery moves your runtime into the minutes rather than the hours range. Try running it at or just above the first “blink” in the ramp and you will see the battery last much longer, I probably top mine off every few weeks. I use it mostly as a dog walking light at lower output and it rarely dips much below the high 3s in that time if I resist the temptation to stay away from wow.

CollectEverything
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Perception wrote:
Quote:
I’ve essentially just been playing with them off and on and the hotrod one (XPL-HI 5000k) is almost down to 3 volts already.

There’s your problem. The D4V2 isn’t as efficient as the Zebralight, but it’s not a whole lot worse. Once you move up the ramp you’re moving into multiples of the Zebralight’s output and 15+ amp draws, so it follows that you go through the battery quickly. Pulling 15-20 amps out of a 3 Ah battery moves your runtime into the minutes rather than the hours range. Try running it at or just above the first “blink” in the ramp and you will see the battery last much longer, I probably top mine off every few weeks. I use it mostly as a dog walking light at lower output and it rarely dips much below the high 3s in that time if I resist the temptation to stay away from wow.


Everything you say makes sense. I’m amazed that you walk the dog with your D4V2 though. What would you estimate your lumen level is that you walk with? What emitters does yours have?

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Perception
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I’ve got two of them, one has SST20 4000K, the other has W2s. I’d bet they’re in the 100-500 lumen range at the first blink, it’s hard to judge though because the D4V2 with W2s is both brighter and more focused at all levels (I generally run the W2 light lower than the SST20 version, the first blink is a good level with the SST20 while it’s brighter than I want with the W2 version). It’s also pretty dark where I live, so even those levels are more than I need most of the time.

Used like that the batteries last me a long time between charges. It’s really hard not to double click to turbo for a few seconds each time out for fun though, and for me at least that’s probably a bigger factor in battery life than driver efficiency.

zoulas
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I know charging a battery more often reduces its life, but if this is the cost of having an EDC ready to go at maximum capacity, its worth it.

Batteries are $4, what’s the difference if they last 5 years vs 6 years?

CollectEverything
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Perception wrote:
I’ve got two of them, one has SST20 4000K, the other has W2s. I’d bet they’re in the 100-500 lumen range at the first blink, it’s hard to judge though because the D4V2 with W2s is both brighter and more focused at all levels (I generally run the W2 light lower than the SST20 version, the first blink is a good level with the SST20 while it’s brighter than I want with the W2 version). It’s also pretty dark where I live, so even those levels are more than I need most of the time.

Used like that the batteries last me a long time between charges. It’s really hard not to double click to turbo for a few seconds each time out for fun though, and for me at least that’s probably a bigger factor in battery life than driver efficiency.

Ohhh that W2 configuration for the D4*S*V2 is calling my name and you’re not helping! Big Smile

Yea the turbo is addicting. I guess I was mostly surprised the battery died so fast even though I never tried to sustain that output. I don’t even wait for thermal management to kick in. But I guess I have to realize that FET is like taking the cap off of a squirt bottle and tipping it. Even a quick “tip” is still a ton of runtime lost.

Yea I have a lot of light pollution and I walk at weird hours so I like to be able to see people coming from a distance. Sounds like your walks are more rural so fewer lumens go further. Plus, if I had a dog I wouldn’t want to blast him with 3000 lumens anyway lol

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Lightbringer
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zoulas wrote:
I know charging a battery more often reduces its life, but if this is the cost of having an EDC ready to go at maximum capacity, its worth it.

That’s why I generally don’t stress about consumables like batteries. They’ll fizzle out slowly, but by the time I’d hit 500 cycles the lights they’re in would likely be obsolete and new cell sizes would likely replace the 18650s and 26650s and 21700s I got now.

And I’d rather have a light on me that has near full capacity, vs letting it run down to 50% or less and have it fizzle out if I need longer runtime, and can’t recharge nor have a spare cell.

So a nightstand light is one thing. If it starts getting dim and is obviously in need of a recharge, great, I got like 8 other lights to replace it. On me, if I only got 1 light and maybe an “emergency backup”, I want full capacity.

No cop would go out on duty with only a half-filled mag, so why go out with a half-dead cell?

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zoulas
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Lightbringer wrote:
zoulas wrote:
I know charging a battery more often reduces its life, but if this is the cost of having an EDC ready to go at maximum capacity, its worth it.

That’s why I generally don’t stress about consumables like batteries. They’ll fizzle out slowly, but by the time I’d hit 500 cycles the lights they’re in would likely be obsolete and new cell sizes would likely replace the 18650s and 26650s and 21700s I got now.

And I’d rather have a light on me that has near full capacity, vs letting it run down to 50% or less and have it fizzle out if I need longer runtime, and can’t recharge nor have a spare cell.

So a nightstand light is one thing. If it starts getting dim and is obviously in need of a recharge, great, I got like 8 other lights to replace it. On me, if I only got 1 light and maybe an “emergency backup”, I want full capacity.

No cop would go out on duty with only a half-filled mag, so why go out with a half-dead cell?

Dude, right on target. Perfectly said.

anonymous_user
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I charge it when it gets low. I only use my flashlight for short periods at a time so even a 14500 can take a while to drain. If my flashlight dies during use, I have a backup. And if the backup dies I use my phone. If that dies, I use my other phone. So far I’ve only had to switch to my backup light once. If I ever have plans where I know I will heavily use my flashlight then I’ll charge them regardless of their current charge.

jon_slider
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Yesterday I took my FWAA on a hike to a hotsprings, the battery was fully charged. I stayed after dark and used the lowest mode in camp.

Then on the way home I used between 150 and 400 lumens to see the trail. It was a 0.7 mile walk

When I got home, the battery was at 3.7v… since Im not planning to use the light the same way tonight, Im not recharging yet.

Bort
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I know my lights well enough to know when a battery needs recharging.

And if i feel like it i throw my AAA from the keychain light onto the charger whenever even if its not going to take much since NiMH doesn’t mind being kept fully charged.

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AlexGT
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To me if its EDC it has to be ready to work at any time, so I charge mine whenever Anduril reads 3.9v and if I know I might use it, I top it off just to be on the safe side.

I currently use a Lumintop HL3A, very small and I like the convenience of a right angle light because I can clip it to my shirt and angle it for hands free use or use the clip as a support stand to angle the light to where I need it, also has a nice magnetic tailcap. I only wish it had a USB-C charging port and other led options.

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