I need help from people who understand the matter…
I have some flashlights with CREE XP-L V5 led in it, and I need best 18650 battery for it so options are :
1. LG INR18650-MG1 2850mAh - 10A
2. LG ICR18650-B4 2600mAh - 5A
3. Panasonic NCR18650B 3350mAh - 2.9A
4. Samsung INR18650-29E 2900 mAh - 10A
5. LG IMR18650-HE2 2500mAh - 20A
So that is all that I can buy for now, what to take ?
I know that mAh are not main that there are many factors that influence the quality of battery, but I’m confused what is better battery with lower A or higher in my case ?
What flashlights are you talking about? In the absence of that information, I will assume that none of the flashlights are overdriving the LED.
The CREE XP-L is rated for a maximum 3A. So, all of the batteries you have listed are okay except the third one, which I’m not familiar with (the more commonly available variation of this cell has a capacity of 3400mAh).
It is highly unlikely that your flashlight has a CREE emitter.
It most likely has a Latticebright LED emitter.
And it does not matter which battery the flashlight uses.
BTW, it is a very good looking counterfeit. Nice bright yellow substrate. But the black triangle in the lower right corner shouldn’t be there. And the dome is missing side-cuts along the four sides.
If I understand well there it is not necessary that be original manufacturer.
Everyone can buy led and board, driver, body of lamp…, put all together and make a lamp with only they specifications…
I repeat, I’m not expert in this, but lamp is extremely bright, lamp with original CREE XML-U2 is ridiculous compared to this lamp.
I don’t test it longer for now but as for that amount of brightness it must be very hot after some time, so maybe proposal of xv-750 will be ok to put on lamp.
And for all of this, because I assume that will be very hot I need good battery that will well submitted that heat.
If you believe that it is a genuine CREE XP-L and if you believe the manufacturer’s claims that the LED is over-driven to 1800 lumens, then only the highest drain battery would work. The best high-drain battery on your list is item number 5 (Panasonic NCR18650B 3350mAh LG IMR18650-HE2 2500mAh).
Personally, I don’t believe it to be a genuine CREE and I don’t believe that the Ultrafire brand would overdrive any of its LED’s. So, I’d recommend any of the batteries on your list - except item number 3 (LG IMR18650-HE2 2500mAh Panasonic NCR18650B 3350mAh ).
First of all I have no idea it that LED genuine CREE or not, and as I can see also others people are not sure…
I have 4 pictures in ‘’The Fake-Cree LED Awareness Thread’’ they are ok quality.
Second thing is that I only can see that lamp has extremely strong light, but as far as lumens refers to I have no idea.
I found information on the web that ordinary light bulbs with 100w have 1300 lumens, and if I compare this flashlight with light bulb, a flashlight is stronger, I’m not sure whether it can ever be compared but, it is not impossible that this flashlight have maybe not all 1800 lumens but around 1300. And as I can see on the flashlightwiki the XP-L V5 is declare to 1176-1227 lumens.
At the end I don’t know what to think, but this is extremly powerfull flashlight, much much stronger than other that I have with XML-T6 LB and genuine CREE XML-U2.
You’d need a solid 6amp draw to make 1800 lumens at the emitter and out the front you’d lose 200-400 lumens most likely.
And I suspect you don’t have a battery really capable of delivering this. The light would also need a very specific driver or direct drive to attain this. Both are highly unlikely in such a light as this.
And at this performance level heat is a major issue. If it isn’t heating up massively within 30 sec, then you are no where near high outputs and amp draws.
And if it is a clone LED and not an XP-L, then performance will generally be lower.
My guess is, your torch is more likely making 600-800 lumens out the front. Which can still seem very impressive. And still be very usable.
You can make and educated guess at this if you have a Digital Multi Meter (they are dirt cheap to buy on ebay etc, £/$5 sort of range). —- You SHOULD already have one if you are using Li-ion as a matter of common sense.
Take a tail cap amp reading. If you are not seeing anything close to 6amps+ then no, it’s all lies I’m afraid.
This doesn’t mean it’ can’t be bright or even a reasonable performing light, but it won’t be what it is advertised as. Which is very common in the flashlight world….
Also you can’t really compare it side by side with a house light bulb. Your torch is using a reflector to focus the light into a beam, the house bulb is not and is lighting up a vast area. If you want to see the difference, at night turn off the house light and point your torch to the ceiling and compare how bright or dull the room looks (not the ceiling, the entire room). It will typically be much duller.
As for batteries. Well it’s always worth having good batteries —— and a good charger.
Personally I quite like these at the moment:
They offer a good blend of high performance and high capacity at a sensible price.
However it is well worth reading up on the differences between protected and non protected batteries and be comfortable with it.
If you want promote your flashlights its better to send them to people which will do a review or under commertial sellers
fell free to contact me for reviews
with 100w have 1300 lumens, and if I compare this flashlight with light bulb, a flashlight is stronger, I’m not sure whether it can ever be compared but, it is not impossible that this flashlight have maybe not all 1800 lumens but around 1300. And as I can see on the flashlightwiki the XP-L V5 is declare to 1176-1227 lumens.