How to Save Money When Buying INR21700

19 May.,2025

 

Best bang for the buck batteries ? - BudgetLightForum.com

Greetings Humans.

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For quite a long time, the best for the money were the mAh TrustFire Flame Cells - I still have 10 of them and they still work after 10 years.
Some years ago the Samsung 30Q came and easily took the throne from whatever was on place 1 before.
, I have some Basen 60A and some Liitokala - but both have had some changes and seem to be not as good, Liitokala seems to be more fake than ever.

But now years have gone by - and it seems to be very difficult to get a decent cell for cheap.
For that’s not the case, I just bought 5 40Ts from nkon.nl for 4,85€ each - not bad at all.

But when I search for on nkon, the cheapest cell is 8€ - for less capacity than the (mAh).

So - what are the best bang for the buck batteries for late in each category?






Ofcourse I know lygte (HKJ) or dampfakkus - but both don’t have a “best of” list based on price.

Thank you very much!

Most people want to avoid a bang with batteries. There is no “best of list based on price” for a real good reason. The specs matter to some people. If you’re not going to look at amps and capacity then opinions mean nothing. Of course everybody likes to save a few dollars here and there. Some of the larger retailers mentioned in many other battery threads will show you some of the manufacturers ratings. It’s useful to read those ratings and have some understanding of what you want and why. Then you can shop around. The pickings are a little slim right now. Edit. It also seems that shipping batteries into Germany at this time is difficult.

I don’t know for sure but I suspect that Panasonic and Sanyo branded cells are identical. For example, there are these two cells:

Both are identified as 10 amp NCRGA cells. One has a 50mah lower capacity rating but maybe they are binned at the factory and branded accordingly.

But then again, you can see that NCRGA cells with Sanyo branding are being sold here with that same mah rating as the Panasonic cells:

With competitive price and timely delivery, JOINSUN sincerely hope to be your supplier and partner.

Yes of course, but store has them at same price, there is no reason to buy Chinese version……And I think most 30Qs are made in China nowadays.

I think CATL is the best battery manufacturer in China but never see they have consumer cells on sale. I don’t trust Lishen and DLG (Sofirn rewrap) due to their bad reputation years ago. Also Mooch recently tested some Chinese cells and results were not good at all.

Battery Guide: What You Need To Know

What are Batteries?

If you’ve been paying attention to the new releases from NITECORE, you probably noticed many of the newest flashlights are powered by li-ion batteries. In , the LED flashlight industry began the transition to this larger size battery (both physically and in energy capacity) and you can expect to see the trend continue throughout and beyond. 

Let’s start at the beginning and talk about what the battery is. Those of you who’ve been around the LED flashlight world probably recognize s as the “gold standard” for flashlight batteries. Long heralded for their compact size and optimal energy density, these lithium ion batteries power some of the brightest, longest running flashlights and are rechargeable to boot!

Much like an cell, a “ battery” is short-hand for a rechargeable, lithium ion battery that is 21 mm in diameter and 70 mm long. As more electronic devices are moving to li-ion batteries as a power source, this size cell first became popular in electric cars like Tesla and electric scooters.

The big advantage of a battery over an battery is the overall energy capacity possible. Battery capacity, measured in milliamp hours or mAh on an was limited to about mAh because of the size. 

By increasing the overall length and diameter slightly, a battery is able to reach a maximum capacity of mAh – a 42% increase. For flashlight users, this translates to longer runtimes on a single charge, something that is invaluable for heavy users. And because the diameter is still under 1”, flashlights using these batteries are still capable of fitting in standard 1” weapon mounts and holsters!

vs Batteries 

You might be wondering, “Can I still use my batteries?” in the new -powered flashlights. The answer is yes … and no. From a chemistry and voltage standpoint, there is no reason an battery won’t work in your -size flashlight. Where you will run into trouble though is making a solid connection — batteries are simply too short and narrow.

We understand that not everyone is ready to switch to the latest technology and some of you have invested some serious money in your battery collection. If you want to still use your batteries, look for battery flashlights that include an battery magazine like the NEW P12. This special adapter will make up for the extra length and diameter and allow you to use either size battery in your flashlight interchangeably.

Charging Batteries

Due to the extra length and diameter of batteries, some older chargers won’t be compatible with this size battery. Have no fear, there are several options available so you don’t need to sink a lot of money into a new charging solution. Here’s a look at your options.

Buy a compatible charger

This is an ideal choice for heavy users who can’t afford to tie up their flashlight waiting for it to charge or need to charge more than one battery at a time. If this sounds like you, try one of these -ready chargers from NITECORE.

Want more information on INR? Feel free to contact us.

  • NITECORE UI1 Single-slot USB Charger
  • NITECORE UI2 Dual-slot USB Charger
  • NITECORE UMS2 Dual-slot Digital Charger
  • NITECORE UMS4 Four-slot Digital Charger
  • NITECORE Q6 Six Slot Charger