They are quite more expensive than the MNKE on the same shop, and I see a line crossing the battery from + to -, but I can't tell you wether it is the protection or not.
On the second picture on the link, if you check, you can see like a strip underneath the plastic packaging, just over the text on the label.
Second cycle
I would like to see some more input on the chemistry myself. I am quite happy with my 8 MNKE 26650s and I know what current they can push.
I have got 2 PAlight yellow 18650 (3000mAh), they got me about 1800mAh i think. So I think i'll skip those and besides they are quite costly.
So where's the KingKong 18650s?
They are. You can clearly see protection circuit.
That’s funny, because I don’t see any sign of one. You realize that’s the positive end in the Int’l picture, right? Not to mention that every protected cell they sell they also offer unprotected. There is no option on the page for a protected/unprotected KK 26650.
I went through my old results and I have to correct my lousy memory. I apologize. Here's what I got at 3A:
MKNE 3900 - 4000mAh (only discharged them once - sold them with a light)
Batteryspace: 3600mAh - 3850mAh (with a few cycles)
Bestinone.net: 3300mAh - 3400mAh (and trending up with each cycle)
I hooked up the test rig tonight and hope to be doing some new tests and can't wait to get these!
The King Kong is not protected. Not sure about the Palight ones though.
^^^
Yep.
I think the ridge that was mentioned as possibly being the strap of a protection circuit is just where the wrap overlaps itself.
I think there is a misunderstanding here, only the palight ones are supposed to be protected.
They may be protected, but you can't see the protection circuit clearly.
It's not protected, through a DMM it does not cut. I made sure i just tapped it and let go immediate. Protected cells cut very fast, minimal sparks also.
I mean the Palight ones.
Sorry guys, I didn't even see the reference to Palight ones. My bad for skimming through the thread.
Sorry to annoy you a little bit 2100.
I would like to know how to do the discharge test for my protected pana NCR18650A from NTL-Int, a friend will do it for me as I do not have an RC charger.
Would you let me know what parameters are to be placed on the charger to do it?
Your friend would be able to cycle through the options and see the discharger option. Just select maybe 1 to 3 amps and then select the ending voltage, that is all.
Ending voltage maybe put it as 2.8V?
Thanks 2100, can you also select the voltage?
It depends on the exact hobby charger being used.
Most will have voltage settings for LiFe cells (can't remember off the top of my head, as I never use it myself, but it'll be 3.6 or 3.7v CV), a setting for LiCo/LiMn cells (4.1v) and a setting for LiPo packs (4.2v). Most modern LiCo/LiMn cells can actually be charged to 4.2v without any issues, though the 4.1v setting would tend to make the cells last longer with little loss of stored energy.
Some higher end chargers also allow you to fine adjust the preset CV values, whereas cheaper chargers will have entirely fixed presets. For instance, the iCharger range of hobby chargers will allow the LiPo setting to be adjusted up to 4.30v, allowing you to use more of the potential capacity of some of the newer Samsung and Sanyo li-ion cells that have peak CV values of 4.30 and 4.35v.
Thanks Stephen,
From your comment I understand the charger should be able to be cofigured for some given chemestries (Li-Po,LiFe-Po;Ni-Mh etc) or if it is a good one, it would be possible to adjust the voltage manually.
What I was asking for is for the discharge test, just in case you meant the charging parameters.