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Posted: 3/25/2024 4:28:14 AM EDT
Looking for recommendations for extra 18650 batteries for a surefire duel fuel turbo pro and a charger for said batteries. I've heard good things about Nitecore chargers but have no idea where to even start woth the different models. A two battery unit would be just fine for my needs.

Thanks folks
Link Posted: 3/25/2024 7:31:22 AM EDT
[#1]
Originally Posted By ypd260:
Looking for recommendations for extra 18650 batteries for a surefire duel fuel turbo pro and a charger for said batteries. I've heard good things about Nitecore chargers but have no idea where to even start woth the different models. A two battery unit would be just fine for my needs.

Thanks folks
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I've been very pleased with these, which came recommended by other members who are far more knowledgeable about batteries than myself...

https://www.18650batterystore.com/products/molicel-p28a

And these are the next generation, with a lot of functional improvements over the ones linked above...

https://www.18650batterystore.com/products/molicel-p30b-18650-3000mah-36a-battery

As for chargers, I much prefer the Nitecore dual 18650/cr123 charger that came with my Cloud Defensive lights over the one that came with my Surefire Scouts. The Nitecore seemed to charge faster, and it has an overall better build quality feel about it. It also has the included ability of charging from either a wall outlet or a USB port. The batteries I was charging in both chargers were a brand new batch of the Molicel p28a's, so I assume they were all at the same rate of charge.
Link Posted: 3/26/2024 12:40:06 AM EDT
[#2]
Molicel makes first rate batteries.
Link Posted: 3/26/2024 4:04:31 AM EDT
[#3]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Tiribulus:
Molicel makes first rate batteries.
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P30B is the current hotness.
Link Posted: 4/29/2024 7:05:32 AM EDT
[Last Edit: DevL] [#4]
Keeppower 18650 3500 mah P1835J protected cell.

Under $10 on illumn.com

You do not need 30A discharge on a weaponlight. You are just giving up 500 mah of capacity for no benefit.

As for chargers, I would look for something with 0.5A for 16340, 1A for general use, and 2.0A fast charging. Something that will do NiMH and LiIon. Something that will take as large of a battery as you will ever use. 21700 or 26650  for future proofing. In a 4 cell charger, I want to be able to charge different types of cells in every slot.

I personally use an XTAR Dragon  4 cell charger because lithium ion battery's have huge capacity, take a while to charge, and I am impatient. I have Nitecore and XTAR 2 cell chargers at work and in the shop to top cells off.
Link Posted: 4/30/2024 12:15:42 AM EDT
[#5]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DevL:
Keeppower 18650 3500 mah P1835J protected cell.

Under $10 on illumn.com

You do not need 30A discharge on a weaponlight. You are just giving up 500 mah of capacity for no benefit.

As for chargers, I would look for something with 0.5A for 16340, 1A for general use, and 2.0A fast charging. Something that will do NiMH and LiIon. Something that will take as large of a battery as you will ever use. 21700 or 26650  for future proofing. In a 4 cell charger, I want to be able to charge different types of cells in every slot.

I personally use an XTAR Dragon  4 cell charger because lithium ion battery's have huge capacity, take a while to charge, and I am impatient. I have Nitecore and XTAR 2 cell chargers at work and in the shop to top cells off.
View Quote


High drain batteries tend to also have very low internal resistance, which limits voltage sag once you get deeper into the cell. At the 3-5A that these lights run on, the runtime of the P30B at rated 3000mah is actually right up there with the 3500mah batteries as far as power deliverable. The benefit to them is that you can always run them harder, charge them faster, they will "decay" at a lower rate from abusive schedules. If you step up to 10 amps, they are notably better/longer running than the 3500MAH batteries.

MAH capacity is rated at 0.2C or something, as I recall.

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