Battery test/review summary

The Panasonic NCR18650B 3400mAh 4.35V cells (I already suggested them to you on CPF, but I guess suggesting them once more here won’t hurt) :Р

They're available for sale on cnqualitygoods.

I did see that and are already looking at cnq, but I need to find some more stuff from cnq to offset the $30 custom fee I will have to pay. Maybe one of the 26650 batteries and a 18350 battery?

And that cell is 3 weeks test time, if I do run it at all 3 voltages (4.2, 4.3 and 4.35).

I will test the NCR18650B, but it will be some time before I receive them.

Looks like cnq was wrong, the cells are 4.2 volt, i.e. they will "only" take a week to test.

Do you also have HiMax in your queue?

Not yet, do you have a link where to buy them?

Of course. :)

http://www.ebay.com/sch/pingyi.co.ltd/m.html?_nkw=18650+2600mAh

I have ordered two and will add them to the queue.

Im replying to this post just to have it followed. Some wonderful stuff and information in t here.

Hats off for this work HKG!

Amazing thread

My head hurts trying to learn and digest ,but what a gent you are sir.

Thanks for your time and efforts

DON…

Seriously awesome. I might move to the 18650 format sometimes in the future but I am concerned with security about those cells. How safe is running/charging those stuffs?

Fairly safe, most laptop computers uses this type of batteries.

To get the best safety use quality batteries with protection and a good charger (Not something like the WF-138 I recently tested).

HKJ has the most power in BLF !
:stuck_out_tongue:

I bought the sysmax nitecore v2 charger which you reviewed? Would you consider it a safe 18650 charger? Thanks!

For charging: yes.

But like a lot of the cheaper equipment I am always a bit worried about the mains input, i.e. it might be a bad idea to let it run unattended. Note: This is not based on any bad experience with the i4, it is more like a general precautionary.

I made up four chargers using the cheap Li-Ion charging boards available on Ebay … Power is provided by a mini-USB socket … I soldered on leads (with magnets fitted) to attatch to the battery … These little boards stop at 4.20 volts and after a half hour or so the cell voltage drops to 4.19V or marginally less , so they do seem to actually stop charging with no trickle charge … Without modification , they charge at one amp but can be adjusted by changing the value of one resistor … They don’t look as pretty as factory-made chargers , but mine work very well.

I have a 5V 4A switch-mode PSU that I will be fitting with four USB sockets (when I have the time) and this will power up to four of these boards … I normally only charge two 18650’s at a time so it will be adequate for my needs.

Some of the boards show red for charging and blue for charge complete and some (like mine) show blue for charging and red for charge complete … It seems to depend on who is selling them … Four boards for less than £6 , plus a few magnets has given me some very cheap but very serviceable Li-Ion chargers.

Worth a try if you have a soldering iron.
.

I have made some brand indexes and direct links to the comparators. I hope this makes the navigation between all my battery tests easier.

Index to specific brands: AW, Efest, EnerPower, Keeppower, TrustFire
Index to comparators: 18350/16340/14500/10440/etc., 18700/18650/18500/17650/etc.

Thank you for your hard work!

I do have a question tho.. do you still have the test of the Enerpower 2600mAh with the Sanyo cell inside? Its been replaced by a Samsung cell and you have updated the test already but is it possible to keep the old test? Maybe marked as pre-2013 or something like that.

I have not removed any Enerpower tests, I did never get the old version of the battery.

Generally I do keep all the tests, if I get a new version of a battery I usual add something to the name.

I do remove some old tests from the different lists, mostly to save space. The comparator will have most batteries and the page with individual reviews will have all batteries.

Damn, must have seen it somewhere else then.. if I only could remember. :D

Maybe some Enerpower dealer, I saw someone had take my discharge curves for another battery with that cell and stripped the battery name off.